Weyl semimetals are topological materials whose low-energy excitations obey the Weyl equation. In a Weyl semimetal, the conduction and valence bands touch at discrete points in momentum space called Weyl nodes. Weyl nodes ...
Quantum Physics
Jan 5, 2023
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58
The emerging field of valleytronics, which exploits the momentum preference of excited electrons, or excitons, in a variety of optoelectronic devices, is closely tied to the fabrication of novel 2D materials just atoms thick. ...
Nanomaterials
Jun 28, 2022
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46
Super strong and only one atom thick, graphene holds promise as a nanomaterial for everything from microelectronics to clean energy storage. But lack of one property has limited its use. Now, researchers at Princeton University ...
Nanomaterials
Oct 19, 2021
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10
An intrinsic magnetic topological insulator MNBI2TE4 has been discovered with a large band gap, making it a promising material platform for fabricating ultra-low-energy electronics and observing exotic topological phenomena.
Nanophysics
Sep 21, 2021
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58
Supercomputers could find themselves out of a job thanks to a suite of new machine learning models that produce rapid, accurate results using a normal laptop.
Materials Science
Jun 23, 2021
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39
NIMS and the Tokyo Institute of Technology have jointly discovered that the chemical compound Ca3SiO is a direct transition semiconductor, making it a potentially promising infrared LED and infrared detector component. This ...
Materials Science
Mar 23, 2021
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6
Electromagnetically induced transparency (EIT) is a typical quantum destructive interference effect, which possesses many striking properties such as elimination of optical absorption, reduction of group velocity and remarkable ...
Optics & Photonics
Mar 19, 2021
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6
An atypical two-dimensional sandwich has the tasty part on the outside for scientists and engineers developing multifunctional nanodevices.
Nanomaterials
Jan 11, 2021
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575
ITMO researchers have discovered a material that is ultra-sensitive to light. Moreover, they were able to identify a parameter that will help find other structures with high refractive coefficients. This discovery will bring ...
Nanophysics
Nov 6, 2020
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11
To tune the band gap, a key parameter in controlling the electrical conductivity and optical properties of semiconductors, researchers typically engineer alloys, a process in which two or more materials are combined to achieve ...
Nanophysics
Aug 21, 2020
0
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