News tagged with electronic transition
Reversible doping: Hydrogen flips switch on vanadium oxide
If you are not a condensed matter physicist, vanadium oxide (VO2) may be the coolest material you've never heard of. It's a metal. It's an insulator. It's a window coating and an optical switch. And thanks ...
May 21, 2012 |
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Physicists show standard 'quasiparticle' theory breaks down at 'quantum critical point'
A new study this week finds that "quantum critical points" in exotic electronic materials can act much like polarizing "hot button issues" in an election. Reporting in Nature, researchers from Rice Univer ...
Apr 25, 2012 |
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ORNL finding has materials scientists entering new territory
Solar cells, light emitting diodes, displays and other electronic devices could get a bump in performance because of a discovery at the Department of Energy's Oak Ridge National Laboratory that establishes new boundaries ...
Feb 21, 2012 |
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Adding up photons with a transition edge sensor
(PhysOrg.com) -- Scientists have demonstrated that a superconducting detector called a transition edge sensor (TES) is capable of counting the number of as many as 1,000 photons in a single pulse of light ...
Nov 14, 2011 |
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Iron-pnictide electron orbital pairing promises higher-temperature superconductors
(PhysOrg.com) -- The quest to develop a so-called room-temperature superconductor – one that exhibits lossless electronic transmission – has long fueled both popular and scientific imagination. At ...
May 17, 2011 |
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Mediating magnetism
(PhysOrg.com) -- Titanium oxide doped with cobalt produces magnetic properties at room temperature via a newly discovered mechanism.
May 04, 2011 |
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Fleeting fluctuations in superconductivity disappear close to transition temperature
(PhysOrg.com) -- As part of an ongoing effort to uncover details of how high-temperature superconductors carry electrical current with no resistance, scientists at Johns Hopkins University and the U.S. Department ...
Feb 13, 2011 |
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Electron gas on insulator's surface opens way to multifunctional transistors
French researchers have succeeded in creating a conductive layer on the surface of strontium titanate (SrTiO3), a transparent insulating material considered to be very promising for the development of future microelectronics applicatio ...
Nanotechnology / Nanomaterials
Jan 18, 2011 |
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Watching electrons move in real time
At its most basic level, understanding chemistry means understanding what electrons are doing. Research published in the Journal of Chemical Physics not only maps the movement of electrons in real time but also observes a conc ...
Sep 21, 2010 |
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First images of heavy electrons in action (w/ Video)
Using a microscope designed to image the arrangement and interactions of electrons in crystals, scientists have captured the first images of electrons that appear to take on extraordinary mass under certain ...
Jun 02, 2010 |
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Squeezing Information from Materials under Extreme Pressure
(PhysOrg.com) -- By compressing tiny amounts of material between two diamond anvils, scientists have for more than three decades been able to achieve pressures of over 1 million atmospheres. The physical changes ...
May 31, 2010 |
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Looking for critical behavior in graphene
(PhysOrg.com) -- "One of the hopes people have for graphene is in electronic devices. It is seen as a possible replacement for silicon, due to its unique properties," Herb Fertig tells PhysOrg.com. Graphe ...
Nanotechnology / Nanomaterials
May 18, 2010 |
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New mechanism for superconductivity discovered in iron-based superconductors
(PhysOrg.com) -- A research team at RIKEN, Japan’s flagship research organisation has experimentally determined the mechanism underlying the formation of electron pairs in iron-based high-temperature superconductors. ...
Apr 22, 2010 |
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Catching electrons in the act: Science on the attosecond scale
(PhysOrg.com) -- Understanding how to create artificial photosynthesis, or tough, flexible high-temperature superconductors, or better solar cells, or a myriad other advances, will only be possible when we ...
Apr 16, 2010 |
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Scientists Detect 'Fingerprint' of High-Temp Superconductivity Above Transition Temperature
(PhysOrg.com) -- A team of U.S. and Japanese scientists has shown for the first time that the spectroscopic "fingerprint" of high-temperature superconductivity remains intact well above the super chilly temperatures ...
Aug 27, 2009 |
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