Graphene is a new form of carbon with unrivalled potential and some very strange physics indeed. It is now shaping up to take over from silicon. Find out how this 21st-century material is winning hearts, minds and Nobel prizes.
Articles about Graphene
As if its list of properties was not already impressive enough, materials scientists working with sophisticated computer models at Stanford University have added another useful trick to graphene’s repertoire: they have made it piezoelectric."We thought the piezoelectric effect would be present, but relatively small.
Graphene may be a wonder material, poised to revolutionise the electronics industry; with applications far beyond the humble CPU. But it isn’t magic.
Scientists at UCLA have put a Lightscribe DVD optical drive to work in their graphene research, and have used them to produce a graphene-based electrochemical supercapcitor that could make itself very useful in a world ever more dependent on battery power.In a paper published in the March 16 edition of the journal Science, the researchers explain that electrochemical capacitors have attracted a lot of interest because they can be charged and discharged much faster than traditional batteries.
Researchers at Berkeley Lab have discovered that they can control the Curie temperature, and hence the magnetism of the semiconductor gallium manganese arsenide (GaMnAs). The breakthrough settles a long running controversy over the usefulness of the material in the emerging field of spintronics.
IBM researchers will announce at the annual meeting of the American Physical Society in Boston today that they have established three new records for error correction in quantum computing.In a paper submitted on Feb 23rd for the conference, the researchers report a 95 per cent success rate with a two-qubit CNOT operation.
It has been a good week for quantum computing. Scientists in Australia announced that they have successfully built a single atom transistor, and researchers writing in Nature, have demonstrated an error correction technique that could make quantum computers more reliable.
Lab tests have confirmed theoretical predictions about the shear and strain that single sheets of graphene can withstand, bringing industrial and commercial applications of the material a step closer.The two-dimensional, hexagonal lattice of carbon has piqued the interest of display and solar cell manufacturers because of its transparency and high conductivity.
Under the watchful eye of Dr Karl Coleman who won the 2011 Royal Society of Chemistry's 'Chemistry World Entrepreneur of the Year', Durham University is spinning out a company to develop the technology for mass production of our favourite two-dimensional material; graphene.The company is betting on its so-called "bottom-up" chemical vapour deposition manufacturing process.
The Manchester University team that first isolated graphene has discovered a way of introducing a band gap into the material that makes it a much more promising candidate for building transistors.Graphene is famous for its astonishing list of useful characteristics – especially its conductivity.
Theoretical physicists working at Harvard and the Joint Quantum Institute in the US have joined forces with their Danish colleagues at the Niels Bohr Institute, to design a nanoscale loud speaker that could help make MRI scanners smaller, and might one day find a use in a future quantum computer.The 'speaker' they have conceived still needs to be tested experimentally.
Graphene might be stealing all the headlines, but other forms of carbon are still making waves in the emerging field of spintronics.So says researcher Michel de Jong, based at the University of Twente in the Netherlands.
Australian scientists have fabricated a silicon wire just four atoms wide. Although it is a mere 10,000th the size of a human hair, it conducts electricity as well as copper, the researchers say.
Researchers at Manchester University – spiritual home of graphene – have now discovered how to magnetise the wonder-material. Yes, you read that right: they have magnetised carbon.
Researchers at Sweden’s Chalmers University have built a CMOS compatible graphene based electronic mixer – a device that combines multiple input signals into one or two composite outputs – that already works at microwave frequencies and could be extended to the terahertz range.Jan Stake, professor of the research team says that the performance of the mixer can be improved by further optimising the circuit, and improving the on-off ratio.
A collaborative project between Singapore and UK researchers has revealed another useful property of graphene; it can offer protection from laser pulses.Scientists at the National University of Singapore, DSO Laboratories and the University of Cambridge were investigating ways of blocking graphene’s natural tendency to stack and form the more familiar graphite – that’s pencil lead to you and me.