Subscribe:
RSS feed
"Everything should be as simple as it is, but not simpler", Albert Einstein
Browsing All posts tagged under »Superconductivity«
Physicists see hints of Majorana fermions
Evidence for the existence of “Majorana fermions” – theoretically proposed particles that are also their own anti-particles – could be seen in the behaviour of a novel Josephson junction. That is the view of physicists at Stanford University in the US, who have examined the properties of a Josephson junction that incorporates material called a […]
‘Magnetic Josephson effect’ seen for the first time
April 21, 2012
A fundamental prediction of superconductivity theory has been demonstrated in the lab for the first time. An international team of physicists has observed coherent quantum phase slip, a phenomenon similar to the well-known Josephson effect in which magnetic flux takes the place of electric charge. Its discovery has fundamental implications for our understanding of macroscopic […]
Red Wine, Tartaric Acid And The Secret Of Superconductivity
March 22, 2012
Last year, physicists discovered that red wine can turn certain materials into superconductors. Now they’ve found that Beaujolais works best and think they know why Last year, a group of Japanese physicists grabbed headlines around the world by announcing that they could induce superconductivity in a sample of iron telluride by soaking it in red […]
How Superconductors Can Detect Gravitational Waves
November 15, 2011
Superconducting metal bars could revolutionise the detection of gravitational waves, says physicists Gravitational waves are vibrations in the fabric of spacetime. They are among the most exciting phenomena in the universe because they are generated by exotic processes such as collisions between black holes and even in the moment of creation itself, the Big Bang. […]
A new kind of superconductivity
October 24, 2011
Physicists unveil a theory for a new kind of superconductivity In this 100th anniversary year of the discovery of superconductivity, physicists at the University of Massachusetts Amherst and Sweden’s Royal Institute of Technology have published a fully self-consistent theory of the new kind of superconducting behavior, Type 1.5, this month in the journal Physical Review […]
The Challenge of Unconventional Superconductivity
June 21, 2011
M. R. Norman During the past few decades, several new classes of superconductors have been discovered. Most of these do not appear to be related to traditional superconductors. As a consequence, it is felt by many that for these materials, superconductivity arises from a different source than the electron-ion interactions that are at the heart […]
Superconductivity’s third side unmasked
June 17, 2011
The debate over the mechanism that causes superconductivity in a class of materials called the pnictides has been settled by a research team from Japan and China. Superconductivity was discovered in the pnictides only recently, and they belong to the class of so-called ‘high-temperature superconductors’. Despite their name, the temperature at which they function as […]
Physicists Apply Einstein’s General Theory of Relativity to Superconducting Circuits
June 12, 2011
In recent years, UC Santa Barbara scientists showed that they could reproduce a basic superconductor using Einstein’s general theory of relativity. Now, using the same theory, they have demonstrated that the Josephson junction could be reproduced. The results are explained in a recent issue of the journal Physical Review Letters. The Josephson junction, a device […]
How to make graphene superconducting
May 28, 2011
Graphene is the physical realization of many fundamental concepts and phenomena in solid state-physics, but in the long list of graphene remarkable properties, a fundamental block is missing: superconductivity. Making graphene superconducting is relevant as the easy manipulation of this material by nanolytographic techniques paves the way to nanosquids, one-electron superconductor-quantum dot devices, superconducting transistors […]
August 7, 2012
0