(Phys.org) —Scientists are just beginning to discover and investigate materials that can change from insulators to conductors at room temperature under an applied voltage. There are only a few known examples, but their ...
Nanophysics
Jun 24, 2013
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(Phys.org)—In bulk, topological insulators (TIs) are good insulators, but on their surface they act as metals, with a twist: the spin and direction of electrons moving across the surface of a TI are locked together. TIs ...
Nanomaterials
Feb 8, 2013
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0
(PhysOrg.com) -- Researchers at the National Institute of Standards and Technology have developed a method to measure the toughness -- the resistance to fracture -- of the thin insulating films that play a critical role in ...
Nanophysics
Dec 23, 2008
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Physicists at the University of Michigan say they have devised a more elegant way to fine-tune the behavior of topological insulators—peculiar, two-faced materials whose electrical properties differ markedly between their ...
General Physics
Jul 18, 2013
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The understanding of quantum physics has involved the creation of a wide range of quasiparticles. These notional constructs describe emergent phenomena that appear to have the properties of multiple other particles mixed ...
Quantum Physics
Oct 9, 2020
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197
Cornell researchers have used magnetic imaging to obtain the first direct visualization of how electrons flow in a special type of insulator, and by doing so they discovered that the transport current moves through the interior ...
Condensed Matter
Aug 3, 2023
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39
Ever shrinking transistors are the key to faster and more efficient computer processing. Since the 1970s, advancements in electronics have largely been driven by the steady pace with which these tiny components have grown ...
Nanophysics
Jun 6, 2018
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146
(PhysOrg.com) -- The prospect of electronics at the nanoscale may be even more promising with the first observation of metallic conductance in ferroelectric nanodomains by researchers at Oak Ridge National Laboratory.
Nanophysics
Jan 9, 2012
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The field of topology or the study of how surfaces behave in different dimensions has profoundly influenced the current understanding of matter. The prime example is the topological insulator, which conducts electricity only ...
Optics & Photonics
Aug 14, 2019
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86
Researchers led by Cornell have discovered an unusual phenomenon in a metal-insulating material, providing valuable insights for the design of materials with new properties by way of faster switching between states of matter.
Nanophysics
Feb 9, 2024
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