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Search results for quantized conductance

General Âé¶¹ÒùÔºics Dec 16, 2015

What are the parts of an atom?

Since the beginning of time, human beings have sought to understand what the universe and everything within it is made up of. And while ancient magi and philosophers conceived of a world composed of four or five elements ...

Nanomaterials Oct 26, 2015

Researchers find electron chirality in graphene impacts current flow

(Âé¶¹ÒùÔº)—A team of researches affiliated with several institutions in the U.K. and Russia has found that chirality in graphene impacts current flow. In their paper published in the journal Nature Âé¶¹ÒùÔºics, the team describes ...

Quantum Âé¶¹ÒùÔºics Sep 30, 2015

At the edge of a quantum gas: Âé¶¹ÒùÔºicists observe skipping orbits in the quantum Hall regime

JQI scientists have achieved a major milestone in simulating the dynamics of condensed-matter systems – such as the behavior of charged particles in semiconductors and other materials – through manipulation of carefully ...

Nanophysics Sep 25, 2015

Two-dimensional organic lattices for spintronic and quantum computing applications

Using sophisticated theoretical tools, A*STAR researchers have identified a way to construct topological insulators — a new class of spin-active materials — out of planar organic-based complexes rather than toxic inorganic ...

Optics & Photonics Jul 28, 2015

Short wavelength plasmons observed in nanotubes

The term "plasmons" might sound like something from the soon-to-be-released new Star Wars movie, but the effects of plasmons have been known about for centuries. Plasmons are collective oscillations of conduction electrons ...

Nanophysics Apr 22, 2015

Huge reduction of heat conduction observed in flat silicon channels

Combining state-of-the-art realistic atomistic modelling and experiments, a new paper describes how thermal conductivity of an ultrathin silicon membrane is controlled to a large extent by the structure and the chemical composition ...

General Âé¶¹ÒùÔºics Apr 14, 2015

Quantization of 'surface Dirac states' could lead to exotic applications

Researchers from the RIKEN Center for Emergent Matter Science in Japan have uncovered the first evidence of an unusual quantum phenomenon—the integer quantum Hall effect—in a new type of film, called a 3D topological ...

General Âé¶¹ÒùÔºics Jan 8, 2015

Magic numbers of quantum matter revealed by cold atoms

Topology, a branch of mathematics classifying geometric objects, has been exploited by physicists to predict and describe unusual quantum phases: the topological states of matter. These intriguing phases, generally accessible ...

Superconductivity Dec 29, 2014

Simplicity will out: Novel experiment-based expression explains behavior of unconventional superconductors

(Âé¶¹ÒùÔº)—Superconductivity – perhaps the leading example of emergent quantum behavior in matter – was discovered in 1911 but lacked theoretical explanation for almost five decades. In 1957, John Bardeen, Leon Cooper, ...

Nanophysics Nov 24, 2014

Magnetic fields and lasers elicit graphene secret

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have studied the dynamics of electrons from the "wonder material" graphene in a magnetic field for the first time. This led to the discovery of a seemingly paradoxical ...

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