Researchers from the University of Twente proved that germanene, a two-dimensional material made of germanium atoms, behaves as a topological insulator. It is the first 2D topological insulator that consists of a single element. ...
Condensed Matter
May 16, 2023
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204
(PhysOrg.com) -- Millions of people today carry around pocket-sized music players capable of holding thousands of songs, thanks to the discovery 20 years ago of a phenomenon known as the “giant magnetoresistance effect,” ...
General Physics
Jun 5, 2009
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0
Graphene and associated one-atom-thick crystals offer the possibility of a vast range of new materials and devices by stacking individual atomic layers on top of each other, new research from the University of Manchester ...
Nanomaterials
Oct 14, 2012
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Certain materials, like copper, conduct electricity very well. Other materials, like glass, do not. A certain kind of material, called a topological insulator, acts partially like one and partially like the other ― it ...
Quantum Physics
Sep 10, 2019
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368
Memory based on electrically-induced "resistive switching" effects have generated a great deal of interest among engineers searching for faster and smaller devices because resistive switching would allow for a higher memory ...
Nanophysics
Sep 20, 2013
2
0
The electric bill this winter is more than a car payment, and you've decided to take action. But if you're not well-schooled, it's best to take some advice from the pros before stalking heat-saving products up and down the ...
Energy & Green Tech
Feb 23, 2009
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0
There are stark differences between metals, through which electrons flow freely, and electrical insulators, in which electrons are essentially immobile. And despite the obvious difficulties in finding a way to switch back ...
Superconductivity
Feb 14, 2023
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81
(Phys.org)—Few modern materials have achieved the fame of silicon, a key element of computer chips and the namesake for Silicon Valley, home to some of the world's most prominent technology firms.
Nanophysics
Sep 14, 2012
5
0
Rice University scientists have created the first two-terminal memory chips that use only silicon, one of the most common substances on the planet, in a way that should be easily adaptable to nanoelectronic manufacturing ...
Nanophysics
Aug 31, 2010
8
0
When you make conducting wires thinner, their electrical resistance goes up. This is Ohm's law, and it is generally right. An important exception is at very low temperatures, where the mobility of electrons increases when ...
Condensed Matter
Sep 23, 2022
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