Search results for dirac

Quantum Physics Oct 21, 2021

Quantum material to boost terahertz frequencies

Topological insulators conduct electricity in a special way and hold the promise of novel circuits and faster mobile communications. Under the leadership of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), a research team ...

Condensed Matter Sep 29, 2021

Correlated electrons 'tango' in a perovskite oxide at the extreme quantum limit

A team led by the Department of Energy's Oak Ridge National Laboratory has found a rare quantum material in which electrons move in coordinated ways, essentially "dancing." Straining the material creates an electronic band ...

Quantum Physics Sep 24, 2021

Quasi-particles with tunable interactions

The laws of quantum mechanics allow for the existence of 'quasi-particles': excitations in materials that behave exactly like ordinary particles. A major advantage of quasi-particles over ordinary particles is that their ...

Condensed Matter Sep 15, 2021

Triangular honeycombs: Physicists design novel quantum material

Smartphones, notebooks and other electronic devices of our everyday life strongly benefit from the ever-increasing miniaturization of semiconductor devices. This development comes however at a price: confining electrons enhances ...

Quantum Physics Aug 6, 2021

Emergent magnetic monopoles controlled at room temperature

Three dimensional (3D) nano-networks promise a new era in modern solid state physics with numerous applications in photonics, bio-medicine, and spintronics. The realization of 3D magnetic nano-architectures could enable ultra-fast ...

General Physics Jul 16, 2021

Emergent magnetic monopoles isolated using quantum-annealing computer

Using a D-Wave quantum-annealing computer as a testbed, scientists at Los Alamos National Laboratory have shown that it is possible to isolate so-called emergent magnetic monopoles, a class of quasiparticles, creating a new ...

Nanophysics Jul 14, 2021

New mechanism of superconductivity discovered in graphene

Superconductivity is a physical phenomenon where the electrical resistance of a material drops to zero under a certain critical temperature. Bardeen-Cooper-Schrieffer (BCS) theory is a well-established explanation that describes ...

Superconductivity Jul 13, 2021

Two-dome superconductivity in a kagome superconductor discovered under high pressure

Recently, a research team led by Prof. Yang Zhaorong from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS), in collaboration with researchers from the Anhui University and other institutions, ...

Astronomy May 14, 2021

Supercomputer simulations unlock an old space weather puzzle

Scientists have long questioned why the bursts of hot gas from the sun do not cool down as fast as expected, and have now used a supercomputer to find out.

Materials Science May 6, 2021

Unusual semimetal shows evidence of unique surface conduction states

Scientists at Tokyo Institute of Technology experimentally verify the existence of exotic surface conduction states in topological semimetals (TSMs), materials that lie at the boundary between conductors and insulators, by ...

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