The Quantum Hall effect (QHE) is one of the most important discoveries in physical sciences. Due to the one-dimensional (1-D) dissipationless edge states, QHE exhibits exotic transport properties with quantized Hall resistance ...
Quantum Physics
Jun 2, 2020
0
72
U.S. and German physicists have found surprising evidence that one of the most famous phenomena in modern physics—the quantum Hall effect—is "reincarnated" in topological superconductors that could be used to build fault-tolerant ...
Quantum Physics
May 18, 2020
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440
Materials that exhibit topological phases can be classified by their dimensionality, symmetries and topological invariants to form conductive-edge states with peculiar transport and spin properties. For example, the quantum ...
In a recent article published in Science Bulletin, researchers developed an effective organic-cation intercalation strategy to manipulate the interlayer coupling of layered materials, and obtain a class of organic-inorganic ...
Materials Science
Feb 18, 2020
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2
Limiting quantum particles to move in one, two, or three dimensions has led to the observation of many striking phenomena. A prime example is the quantization of the Hall conductance measured in 2-D materials in a strong ...
Quantum Physics
Oct 3, 2019
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34
The quantum Hall effect (QHE), which was previously known for two-dimensional (2-D) systems, was predicted to be possible for three-dimensional (3-D) systems by Bertrand Halperin in 1987, but the theory was not proven until ...
Quantum Physics
Aug 19, 2019
0
317
NPL, Chalmers University of Technology and Graphensic, have demonstrated the long-term stability of the epigraphene quantum Hall chip, which represents a key step towards enabling end-users to maintain their own resistance ...
Nanophysics
Aug 13, 2019
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13
A team of researchers from the Universities of Manchester, Nottingham and Loughborough has discovered a quantum phenomenon that helps to understand the fundamental limits of graphene electronics.
Nanophysics
Jul 26, 2019
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882
Researchers from Brown and Columbia Universities have demonstrated previously unknown states of matter that arise in double-layer stacks of graphene, a two-dimensional nanomaterial. These new states, known as the fractional ...
Quantum Physics
Jun 26, 2019
1
7
In these kinds of structures, sound signals remain robust and insensitive to noise caused by impurities and defects in the material. In the framework of this research, scientists have discovered that the acoustic topological ...
Quantum Physics
Mar 6, 2019
0
16
