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UrduControllable deformations introduced in periodic structures may lead to appearance of disclinations and open new routes for construction of higher-order topological insulators with various discrete rotational symmetries, which were observed so far only in linear regime.
Tag: topological insulators
Scientists make a surprising discovery about magnetic defects in topological insulators
Scientists from the Department of Energy’s Ames National Laboratory made an intriguing discovery while characterizing the magnetism in a dilute magnetic topological insulator. Despite this material’s ferromagnetism, they discovered strong antiferromagnetic interactions between some pairs of magnetic defects that play a key role in several families of magnetic topological insulators.
New tech can double spectral bandwidth in some 5G systems
Using the properties of a unique class of materials, researchers, including Aravind Nagulu at the McKelvey School of Engineering, may have found a way to dramatically increase the bandwidth available for wireless communications.
Experiments confirm a quantum material’s unique response to circularly polarized laser light
SLAC scientists are probing topological insulators with circularly polarized light to reveal their many secrets. These exotic materials have potential for quantum computing and other technologies. A new study discovers that polarized laser light generates a unique signature from the topological surface.
Quirky Response to Magnetism Presents Quantum Physics Mystery
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 possible with conventional electronics. Topological insulators–materials that act mostly as insulators but carry electric current across their surface–provide some tantalizing possibilities. Scientists at Brookhaven Lab describe one such material that should be right just right for making qubits. But this material doesn’t obey the rules.
Story Tips: Pandemic impact, root studies, neutrons confirm, lab on a crystal and modeling fusion
ORNL Story Tips: Pandemic impact, root studies, neutrons confirm, lab on a crystal and modeling fusion
A Talented 2D Material Gets a New Gig
Berkeley Lab scientists tap into graphene’s hidden talent as an electrically tunable superconductor, insulator, and magnetic device for the advancement of quantum information science