Topological insulators, or TIs, have two faces: Electrons flow freely along their surface edges, like cars on a superhighway, but can't flow through the interior of the material at all. It takes a special set of conditions ...
Optics & Photonics
Aug 18, 2022
0
214
Exotic quantum particles and phenomena are like the world's most daring elite athletes. Like the free solo climbers who scale impossibly steep cliff faces without a rope or harness, only the most extreme conditions will entice ...
General Physics
Dec 15, 2021
0
1128
Israeli and German researchers have developed a way to force an array of vertical cavity lasers to act together as a single laser—a highly effective laser network the size of a grain of sand. The findings are presented ...
Optics & Photonics
Sep 24, 2021
0
612
Topological insulators have notable manifestations of electronic properties. The helicity-dependent photocurrents in such devices are underpinned by spin momentum-locking of surface Dirac electrons that are weak and easily ...
Anew study provides the first evidence of exotic particles, known as fourfold topological quasiparticles, in the metallic alloy cobalt monosilicide. Published in the Proceedings of the National Academy of Sciences, this comprehensive ...
General Physics
Oct 28, 2020
0
323
The search is on to discover new states of matter, and possibly new ways of encoding, manipulating, and transporting information. One goal is to harness materials' quantum properties for communications that go beyond what's ...
Quantum Physics
Sep 10, 2020
0
909
Topological insulators (TIs) have an insulating interior and support conducting surface states with additional interfacing properties. The exotic metallic states on their surfaces can provide new routes to generate new phases ...
The charge of a single electron, e, is defined as the basic unit of electric charge. Because electrons—the subatomic particles that carry electricity—are elementary particles and cannot be split, fractions of electronic ...
General Physics
Jun 10, 2020
1
640
A discovery that long eluded physicists has been detected in a laboratory at Princeton. A team of physicists detected superconducting currents—the flow of electrons without wasting energy—along the exterior edge of a ...
Superconductivity
Apr 30, 2020
0
2161
Electrons race along the surface of certain unusual crystalline materials, except that sometimes they don't. Two new studies from Princeton researchers and their collaborators explain the source of the surprising behavior ...
Condensed Matter
Feb 13, 2020
0
1237
