Posted by AGORACOM
at 8:57 AM on Thursday, March 26th, 2020
Thunder Bay, Ontario–(March 26, 2020) – ZEN Graphene Solutions Ltd. (TSXV: ZEN) (“ZEN” or the “Company“)
has commenced scale-up and engineering studies on processes for the
production of Albany Pure ™ Graphene products at the Company’s research
and development facility in Guelph, Ontario. The priority is to increase
graphene production in anticipation of future demand as the Company
launched graphene product sales in early March 2020. ZEN will also
commission the recently purchased purification autoclave to commence the
production of high-purity Albany graphene precursor material.
ZEN’s graphene products will now all have the Albany Pure ™ Seal of
Authenticity which represents that the material was sourced from unique
Albany Graphite and meets the Company’s high-quality standards. Albany
Pure ™ Graphene products can be purchased online at
https://shop.zengraphene.com/.
The Company will be working with leading university researchers to
help facilitate the GO process scale-up at its Guelph facility. The
research and engineering team will also be developing and testing custom
functionalized graphene formulations as requested by industrial
collaborators for product performance enhancement.
The Company has also reviewed operational expenses and eliminated
non-core expenditures in response to the COVID-19 Pandemic and its
global economic fallout. This will ensure that scaled up graphene
production operations can move forward while the Company remains focused
on developing industrial partnerships. ZEN has also eliminated all
business-related air travel for employees as well as in-person meetings
until further notice.
About ZEN Graphene Solutions Ltd.
ZEN is an emerging graphene technology solutions company with a focus
on the development of graphene-based nanomaterial products and
applications. The unique Albany Graphite Project provides the company
with a potential competitive advantage in the graphene market as
independent labs in Japan, UK, Israel, USA and Canada have independently
demonstrated that ZEN’s Albany PureTM Graphite is an ideal precursor
material which easily converts (exfoliates) to graphene, using a variety
of mechanical, chemical and electrochemical methods.
To find out more on ZEN Graphene Solutions Ltd., please visit our website at www.ZENGraphene.com. A copy of this news release and all material documents in respect of the Company may be obtained on ZEN’s SEDAR profile at www.sedar.ca.
Posted by AGORACOM
at 11:07 AM on Thursday, March 12th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
The first demonstration of graphene double quantum dots in which it
is possible to control the number of electrons down to zero has been
reported in Nano Letters. Far from an abstract academic stunt,
the results could prove key to future implementations of quantum
computing based on graphene. “Having exact information and control over
the number of electrons in the dots is essential for spin based quantum
information technology,” says Luca Banszerus, a researcher at RWTH
Aachen University in Germany and the first author of the paper reporting
these results.
Although this level of control has been demonstrated in single quantum dots, this is the first demonstration in graphene double quantum dots,
which are particularly useful as spin qubits. “Using a double dot
heavily facilitates the readout of the electron’s spin state and the
implementation of quantum gates,” Banszerus adds.
Less edgy quantum dots
The idea of using graphene in quantum dots dates back almost as far
as the first reports of the material’s isolation in 2004. Graphene has
almost no spin-orbit interaction and very little hyperfine coupling,
which would suggest that spin lifetimes can be extremely high.
Unfortunately, quantum dots physically etched from larger graphene
flakes run into problems due to the disorder at the dot’s edges
disrupting the material’s behavior. As a result, the transport behavior
of these quantum dots is dominated by localized states at the edges.
“This leads to an unknown effective quantum dot size and an occupation
of typically many electrons,” says Banszerus.
Instead, Banszerus and colleagues at RWTH Aachen and the National Institute of Materials Science in Japan work with bilayer graphene,
which can be tuned to be a semiconductor. A voltage applied to specific
regions of a bilayer graphene flake can switch those regions to behave
as insulators, electrostatically defining a quantum dot that has no edge
states nearby.
The Aachen researchers strip single flakes of bilayer graphene from
graphite (mechanical exfoliation) and handle it using a dry pick-up
technique that hinges on van der Waals interactions. They encapsulate
the bilayer graphene in hexagonal boron nitride (hBN) crystal. They then
place the structure on a graphite flake, which acts as the bottom
electrode, and add chromium and gold split gates and finger gates
separated from the split gates by a 30-nm-thick layer of atomic layer
deposited Al2O3.
They were able to control the number of electrons on the quantum dots
by applying a voltage, which also affected the tunneling coupling
between the dots. As a result, once the total occupation of the two
quantum dots exceeds eight electrons, they begin to behave as one single
quantum dot, rather than a double quantum dot. Transport measurements
also revealed that the number of electrons loaded on the quantum dot
could be controlled down to zero electrons.
The idea of defining quantum dots in bilayer graphene
electrostatically in this way is not new. However, although different
groups have attempted this approach since 2010, the process required
recently discovered tricks of the trade, such as better encapsulation in
hBN and the use of graphite flakes as gates to get a clean band gap.
Banszerus says these developments came as quite a surprise and revived
interest in graphene quantum dots in 2018. He hopes the capabilities
they have now demonstrated will further spark activity in this field.
Coupling control
“Even though being able to control the number of charges in a
graphene double dot is a huge step forward, there are still many
problems to be solved on the road toward spin-based quantum information technology in graphene,” says Banszerus. Next, he hopes to tackle the problem of controlling the coupling between the quantum dots and the reservoir, which he hopes to achieve by adding an additional layer of interdigitated finger gates on top.
Posted by AGORACOM
at 12:09 PM on Thursday, March 5th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
An optical image of the graphene device (shown above as a square gold pad) on a silicon dioxide/silicon chip. Shining metal wires are connected to gold electrodes for electrical measurement. The tiny graphene device has a length and width of just one-tenth of a millimeter. (Credit: Guorui Chen/Berkeley Lab)
Berkeley Lab scientists tap into graphene’s hidden talent as an electrically tunable superconductor, insulator, and magnetic device for the advancement of quantum information science
Ever since graphene’s discovery
in 2004, scientists have looked for ways to put this talented,
atomically thin 2D material to work. Thinner than a single strand of DNA
yet 200 times stronger than steel, graphene is an excellent conductor
of electricity and heat, and it can conform to any number of shapes,
from an ultrathin 2D sheet, to an electronic circuit.
Last year, a team of researchers led by Feng Wang, a faculty scientist in Berkeley Lab’s Materials Sciences Division and a professor of physics at UC Berkeley, developed a multitasking graphene device
that switches from a superconductor that efficiently conducts
electricity, to an insulator that resists the flow of electric current,
and back again to a superconductor.
Now, as reported in Nature today,
the researchers have tapped into their graphene system’s talent for
juggling not just two properties, but three: superconducting,
insulating, and a type of magnetism called ferromagnetism. The
multitasking device could make possible new physics experiments, such as
research in the pursuit of an electric circuit for faster,
next-generation electronics like quantum computing technologies.
Optical image of a trilayer graphene material sandwiched between
boron nitride layers during the nanofabrication process (left); and the
trilayer graphene/boron nitride device with gold electrodes (right).
(Credit: Guorui Chen/Berkeley Lab)
“So far, materials simultaneously showing superconducting,
insulating, and magnetic properties have been very rare. And most people
believed that it would be difficult to induce magnetism in graphene,
because it’s typically not magnetic. Our graphene system is the first to
combine all three properties in a single sample,†said Guorui Chen, a
postdoctoral researcher in Wang’s Ultrafast Nano-Optics Group at UC
Berkeley, and the study’s lead author.
Using electricity to turn on graphene’s hidden potential
Graphene has a lot of potential in the world of electronics. Its
atomically thin structure, combined with its robust electronic and
thermal conductivity, “could offer a unique advantage in the development
of next-generation electronics and memory storage devices,†said Chen,
who also worked as a postdoctoral researcher in Berkeley Lab’s Materials
Sciences Division at the time of the study.
The problem is that the magnetic materials used in electronics today
are made of ferromagnetic metals, such as iron or cobalt alloys.
Ferromagnetic materials, like the common bar magnet, have a north and a
south pole. When ferromagnetic materials are used to store data on a
computer’s hard disk, these poles point either up or down, representing
zeros and ones – called bits.
Graphene, however, is not made of a magnetic metal – it’s made of carbon.
So the scientists came up with a creative workaround.
By applying electrical voltages through the graphene device’s gates,
the force from the electricity prodded electrons in the device to circle
in the same direction, like tiny cars racing around a track. This
generated a forceful momentum that transformed the graphene device into a
ferromagnetic system.
More measurements revealed an astonishing new set of properties: The
graphene system’s interior had not only become magnetic but also
insulating; and despite the magnetism, its outer edges morphed into
channels of electronic current that move without resistance. Such
properties characterize a rare class of insulators known as Chern
insulators, the researchers said.
Even more surprising, calculations by co-author Ya-Hui Zhang of the
Massachusetts Institute of Technology revealed that the graphene device
has not just one, but two conductive edges, making it the first observed
“high-order Chern insulator,†a consequence of the strong
electron-electron interactions in the trilayer graphene.
Scientists have been in hot pursuit of Chern insulators in a field of
research known as topology, which investigates exotic states of matter.
Chern insulators offer potential new ways to manipulate information in a
quantum computer, where data is stored in quantum bits, or qubits. A
qubit can represent a one, a zero, or a state in which it is both a one
and a zero at the same time.
“Our discovery demonstrates that graphene is an ideal platform for
studying different physics, ranging from single-particle physics, to
superconductivity, and now topological physics to study quantum phases
of matter in 2D materials,†Chen said. “It’s exciting that we can now
explore new physics in a tiny device just 1 millionth of a millimeter
thick.â€
The researchers hope to conduct more experiments with their graphene
device to have a better understanding of how the Chern insulator/magnet
emerged, and the mechanics behind its unusual properties.
Researchers from Berkeley Lab; UC Berkeley; Stanford University; SLAC
National Accelerator Laboratory; Massachusetts Institute of Technology;
China’s Shanghai Jiao Tong University, Collaborative Innovation Center
of Advanced Microstructures, and Fudan University; and Japan’s National
Institute for Materials Science participated in the work.
Founded in 1931 on the belief that the biggest scientific challenges are best addressed by teams, Lawrence Berkeley National Laboratory
and its scientists have been recognized with 13 Nobel Prizes. Today,
Berkeley Lab researchers develop sustainable energy and environmental
solutions, create useful new materials, advance the frontiers of
computing, and probe the mysteries of life, matter, and the universe.
Scientists from around the world rely on the Lab’s facilities for their
own discovery science. Berkeley Lab is a multiprogram national
laboratory, managed by the University of California for the U.S.
Department of Energy’s Office of Science.
DOE’s Office of Science is the single largest supporter of basic
research in the physical sciences in the United States, and is working
to address some of the most pressing challenges of our time. For more
information, please visit energy.gov/science.
Posted by AGORACOM
at 9:53 AM on Monday, March 2nd, 2020
ZEN Graphene Solutions Ltd. (TSXV: ZEN) “ZEN” or the “Company“) is pleased to announce the launch of Albany Pure TM graphene products on their website at https://shop.zengraphene.com/.
The Company is planning to expand its product line to bring Graphene
Quantum Dots, Graphene Oxide, Reduced Graphene Oxide, and other
graphene-based products to the market.
The
Company is ramping up its new lab facility in Guelph, Ontario and is
working towards larger-scale graphene production. The graphene precursor
material is sourced from the unique, igneous-hosted Albany Graphite
Deposit in Northern Ontario. As part of the company’s business
development plan, ZEN is actively working with several industries to
functionalize and test its graphene products in their applications with
the potential for subsequent industry partnerships and agreements.
About ZEN Graphene Solutions Ltd.
ZEN
is an emerging graphene technology solutions company with a focus on
the development of graphene-based nanomaterial products and
applications. The unique Albany Graphite Project provides the company
with a potential competitive advantage in the graphene market as
independent labs in Japan, UK, Israel, USA and Canada have independently
demonstrated that ZEN’s Albany PureTM Graphite is an ideal precursor
material which easily converts (exfoliates) to graphene, using a variety
of mechanical, chemical and electrochemical methods.
Posted by AGORACOM
at 11:01 AM on Tuesday, February 25th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
Researchers proposed a new design of the supercapacitor, which uses
films of graphene laminate with the same distance between the layers.
Energy density increases drastically — about 10 times compared to conventional supercapacitors.
Scientists from University College London and the Chinese Academy of Sciences have proposed a graphene-based design for supercapacitors, which reportedly increased their density by 10 times.
Supercapacitors charge quickly but also discharge at a high speed.
Existing supercapacitors tend to have a low energy density – about 1/20
of the battery capacity. Batteries
combined with supercapacitors are already in limited use – for example,
in Chinese public transport. But the bus in which such a battery is
installed is forced to charge at almost every stop.
In this work, the researchers proposed a new design of the
supercapacitor, which uses films of graphene laminate with the same
distance between the layers.
The work showed that when the pores in the membranes exactly
correspond to the size of the electrolyte ions, the energy density
increases drastically — about 10 times compared to conventional
supercapacitors.
In addition, the scientists note, the new material has a long service
life, retaining 97.8% of its energy intensity after 5000 cycles of
charging and discharging. The new supercapacitors are also very flexible
– they can be bent up to 180 degrees.
Posted by AGORACOM
at 11:37 AM on Thursday, February 20th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
Scientists at Rice University have made laser-induced graphene using a low-power laser mounted in a scanning electron microscope.
The team at Rice University,
in conjunction with Philip Rack, a Tennessee/ORNL materials scientist,
have pioneered a process to create laser-induced graphene (LIG). LIG has
features that are 60% smaller than the macro version of the material
and almost 10 times smaller than what can be typically achieved using an
infrared laser.
The LIG Process
LIG is a multifunctional graphene foam that is direct-written with an
infrared laser into a carbon-based precursor material. In the Rice
team’s research, this was achieved using a visible 405 nm laser that
directly converts polyimide into LIG, enabling the formation of LIG with
a spatial resolution of 12 µm and a thickness of < 5 µm. This
spatial resolution, enabled by the smaller-focused spot size of the 405
nm laser, represents a 60% reduction in previously reported LIG feature
sizes.
These smaller 405 nm lasers use light in the blue-violet part of the
spectrum. They are much less powerful than the industrial lasers that
are currently being used to burn graphene into materials.
“A key for electronics applications is to make smaller structures
so that one could have a higher density, or more devices per unit
area,†James Tour of Rice University said in a statement. “This method allows us to make structures that are 10 times denser than we formerly made.â€
A scanning electron microscope shows two tracers of LIG on a polyimide film. Image used courtesy of James Tour of Rice University
A New Path Toward Writing Electronic Circuits
To prove the viability of their concept, the researchers made tiny
flexible humidity sensors directly fabricated on polyimide. These
devices were then able to sense human breath in 250 milliseconds.
“This is much faster than the sampling rate for most commercial
humidity sensors and enables the monitoring of rapid local humidity
changes that can be caused by breathing,†said Rice postdoctoral researcher Michael Stanford, lead author of the research team’s paper.
The 405 nm laser is mounted on a scanning electron microscope (SEM)
and burns the top five microns of the polymer. This writes graphene
features as small as 12 microns.
The Rice team believes that this new LIG process could offer a new
path toward writing electronic circuits into flexible materials such as
clothing.
“The LIG process will allow graphene to be directly synthesized for precise electronics applications on surfaces,†added Stanford. With growing interest in the LIG process for use in flexible electronics and sensors, further refinement of this process will expand its utility and potentially see it being used in a range of flexible electronics across all industries.
Posted by AGORACOM
at 6:40 PM on Friday, February 14th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
Graphene has been dubbed the material of the future for its
unbelievable strength and the myriad of potential applications it offers
and European researchers have just released the first-ever manual on
how to produce it.
The manual was released by the Graphene Flagship consortium composed
of universities and companies. Founded in 2013, it is one of the three
big EU-funded science projects with a budget of over €1 billion until
2023.
The consortium hopes the manual will boost the uptake of the material which has the potential to revolutionise whole industries.
Graphene is a layer of carbon atoms obtained from graphite, which we can find, for example, in the tip of a pencil.
Arranged in a honeycomb-like pattern, it is 200 times stronger than
steel, harder than diamond, and carries both heat and electricity better
than any other material including gold or copper. And it’s also a
million times smaller than a strand of hair.
Seventy researchers participated in the elaboration of the free, 500-pages manual.
“It’s a big book that encompasses the description of many of the most
important methods to produce graphene and other two dimensional
materials,” Mar GarcÃa Hernández, from Graphene Flagship told Euronews.
Researchers from Graphene Flagship have shown that at least 1,800
different layered materials exit but so far, only a few have truly been
investigated.
“For any application of graphene or related materials, you need first
to be able to make it. For this reason, a book or a paper that gives
you precise details on how to make these materials, how to characterise
them, how to transfer them from the good substrate to the final
substrate is going to be very useful,” Andrea Ferrari, Graphene
Flagship’s Science and Technology Officer told Euronews.
The material’s flexibility and resilience mean it can be used in a
variety of industries such as aeronautics, space exploration, medicine,
energy or electronics.
Last December, Graphene Flagship
partnered with some of Europe’s biggest companies including Airbus,
Fiat-Chrysler Automobiles, Lufthansa Technik, Siemens and ABB among
others to take graphene-enabled prototypes to commercial applications.
One of the projects will develop state-of-the-art vision sensors,
which could be critical for the safe functioning of self-driving cars
while another will use graphene-based filters to remove contaminants
such as pesticides and dangerous pathogens from drinking water.
Posted by AGORACOM
at 1:03 PM on Thursday, February 13th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
Every age in the history of human civilisation has a signature
material, from the Stone Age, to the Bronze and Iron Ages. We might even
call today’s information-driven society the Silicon Age.
Since the 1960s, silicon nanostructures,
the building-blocks of microchips, have supercharged the development of
electronics, communications, manufacturing, medicine, and more.
How small are these nanostructures? Very, very small – you could fit at least 3,000 silicon transistors onto the tip of a human hair.
But there is a limit: below about 5 nanometres (5 millionths of a
millimetre), it is hard to improve the performance of silicon devices
any further.
So if we are about to exhaust the potential of silicon nanomaterials,
what will be our next signature material? That’s where “atomaterialsâ€
come in.What are atomaterials?
What are atomaterials?
“Atomaterials†is short for “atomic materialsâ€, so called because
their properties depend on the precise configuration of their atoms. It
is a new but rapidly developing field.
One example is graphene,
which is made of carbon atoms. Unlike diamond, in which the carbon
atoms form a rigid three-dimensional structure, graphene is made of
single layer of carbon atoms, bonded together in a two-dimensional
honeycomb lattice.
Diamond’s rigid structure is the reason for its celebrated hardness
and longevity, making it the perfect material for high-end drill bits
and expensive jewellery. In contrast, the two-dimensional form of carbon
atoms in graphene allows electron travelling frictionless at a high
speed giving ultrahigh conductivity and the outstanding in plane
mechanical strength. Thus, graphene has broad applications in medicines,
electronics, energy storage, light processing, and water filtration.
Using lasers, we can fashion these atomic structures into miniaturised devices with exceptional performance.
Using atomaterials, our lab has been working on a range of innovations, at various stages of development. They include:
A magic cooling film. This film can cool the
environment by up to 10℃ without using any electricity. By integrating
such a film into a building, the electricity used for air conditioning
can be reduced by 35%, and summer electricity blackouts effectively
stopped. This will not only save electricity bills but also reduce
greenhouse emissions.
Heat-absorbing film. Some 97% of Earth’s water is in
the oceans, and is salty and unusable without expensive processing.
Efficiently removing salt from seawater could be a long-term solution to
the growing global freshwater scarcity. With a solar-powered graphene
film, this process can be made very efficient.
The film absorbs almost all the sunlight shining on it and converts it into heat. The temperature can be increased to 160℃ within 30 seconds.
This heat can then distil seawater with an efficiency greater than 95%,
and the distilled water is cleaner than tapwater. This low-cost
technology can be suitable for domestic and industry applications.
Smart sensing film. These flexible atomaterial films
can incorporate a wide range of functions including environmental
sensing, communication, and energy storage. They have a broad range of
applications in healthcare, sports, advanced manufacturing, farming, and
others. For example, smart films could monitor soil humidity near
plants’ roots, thus helping to make agriculture more water-efficient.
Ultrathin, ultra-lightweight lenses. The bulkiest part
of a mobile phone camera is the lens, because it needs to be made of
thick glass with particular optical properties. But lenses made with
graphene can be mere millionths of a millimetre thick,
and still deliver superb image quality. Such lenses could greatly
reduce the weight and cost of everything from phones to space
satellites.
Near-instant power supply. We have developed an environmentally friendly supercapacitor from graphene that charges devices in seconds,
and has a lifetime of millions of charge cycles. By attaching it to the
back of a solar cell, it can store and deliver solar-generated energy
whenever and wherever required. You will be free and truly mobile.
The world is facing pressing challenges, from climate change, to energy and resource scarcity, to our health and well-being.
Material innovation is more vital than ever and needs to be more
efficient, design-driven and environmentally friendly. But these
challenges can only be solved by joint effort from worldwide
researchers, enterprise, industry and government with a sharing and open
mindset.
Posted by AGORACOM
at 12:58 PM on Tuesday, February 11th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
An international group of Russian and Japanese scientists recently
developed a graphene-based material that might significantly increase
the recording density in data storage devices, such as SSDs and flash
drives. Among the main advantages of the material is the absence of
rewrite limit, which will allow implementing new devices for Big Data
processes.
The development of compact and reliable memory devices is an
increasing need. Today, traditional devices are devices in which
information is transferred through electric current. The simplest
example is a flash card or SSD. At the same time, users inevitably
encounter problems: the file may not be recorded correctly, the computer
may stop “seeing” the flash drive, and to record a large amount of
information, rather massive devices are required.
A promising alternative to electronics is spintronics.
In spintronics, devices operate on the principle of magnetoresistance:
there are three layers, the first and third of which are ferromagnetic,
and the middle one is nonmagnetic. Passing through such a “sandwich”
structure, electrons, depending on their spin, are scattered differently
in the magnetized edge layers, which affects the resulting resistance
of the device.
The control of information using the standard logical bits, 0 and 1,
can be performed by detecting an increase or decrease in this
resistance.
The international group of scientists from National University of
Science and Technology MISIS (Russia) and National Institute for Quantum
and Radiological Science and Technology (Japan) developed a material
that can significantly increase the capacity of magnetic memory by
increasing the recording density. The scientists used a combination of
graphene and the semi-metallic Heusler alloy Co2FeGaGe.
“Japanese colleagues for the first time grew a single-atom layer of
graphene on a layer of semi-metallic ferromagnetic material and measured
its properties. The Japanese team, led by Dr. Seiji Sakai, conducts
unique experiments, while our group is engaged in a theoretical
description of the data obtained. Our teams have been working together
for many years and have obtained a number of important results,”
comments Pavel Sorokin, Sc.D. in Physics and Mathematics, head of the
“Theoretical Materials Science of Nanostructures” infrastructure project
at the NUST MISIS Laboratory of Inorganic Nanomaterials.
Previously, graphene was not used in magnetic memory devices as
carbon atoms reacted with the magnetic layer, which led to changes in
its properties. By careful selection of the Heusler alloy composition,
as well as the methods of its application, it was possible to create a
thinner sample compared to previous analogues. This, in turn, will
significantly increase the capacity of magnetic memory devices without
increasing their physical size.
Next, the scientists plan to scale the experimental sample and modify the structure.
Posted by AGORACOM
at 4:55 PM on Friday, February 7th, 2020
SPONSOR: ZEN Graphene Solutions: An emerging advanced materials and graphene development company with a focus on new solutions using pure graphene and other two-dimensional materials. Our competitive advantage relies on the unique qualities of our multi-decade supply of precursor materials in the Albany Graphite Deposit. Independent labs in Japan, UK, Israel, USA and Canada confirm this. Click here for more information
“This company has the very rare graphite deposit in Ontario –
as it is able to transform or exfoliate into graphene products easier
than other graphites around the world”
“The goal of the facility is to start producing some of these
nanomaterials – graphene, graphene oxide, and graphene quantum dots.”
“These materials at the research level have a lot of excitement around
them. They also come at a very high price.”
ZEN is an emerging graphene technology solutions company with a focus
on the development of graphene-based nanomaterial products and
applications. The unique Albany Graphite Project provides the company
with a potential competitive advantage in the graphene market as
independent labs in Japan, UK, Israel, USA and Canada have independently
demonstrated that ZEN’s Albany PureTM Graphite is an ideal precursor
material which easily converts (exfoliates) to graphene, using a variety
of mechanical, chemical and electrochemical methods.
