The quantum Hall effect (QHE) is one of the most notable discoveries in condensed matter physics, opening the door to topological physics. Extending QHE into three dimensions is an inspiring but challenging endeavor. This ...
Condensed Matter
Jul 11, 2024
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41
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
0
13
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
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16
In Sèvres, a small commune on the outskirts of Paris, lies a gleaming lump of metal the size of a palm. Le Grand K, or Big K as they call the platinum and iridium alloy, sits underground in a high-security vault. It is held ...
General Physics
Jan 26, 2018
1
16
Cryogenic Ltd and the National Physical Laboratory (NPL) have designed and developed the most accurate instrument for comparative measurements of electric current. The instrument can now be used by National Measurement Institutes ...
General Physics
Apr 10, 2013
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0
(PhysOrg.com) -- Theoretical physicists of the University of Innsbruck have formulated a new concept to engineer exotic, so-called topological states of matter in quantum mechanical many-body systems. They linked concepts ...
Quantum Physics
Oct 3, 2011
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0
Conductors of electrical current, including copper, heat up and limit the ability to increase circuit densities. Unusual materials that exhibit the so-called ‘quantum spin Hall effect’, in which current can flow ...
General Physics
Sep 30, 2011
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0
New research from NPL's Quantum Detection Group presents the most precise measurements of the quantum Hall effect ever made, using the two-dimensional material graphene.
Quantum Physics
Sep 19, 2011
1
0
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
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
0
2
