Search results for quantized conductance

Quantum Physics Mar 4, 2022

Vacuum fluctuations break topological protection

A hallmark of so-called topological quantum states is that they are protected against local perturbations. ETH physicists now demonstrate that in the paradigmatic case of the integer quantum Hall effect, vacuum fluctuations ...

Condensed Matter Nov 8, 2021

Discovery of segmented Fermi surface induced by Cooper pair momentum on a hybrid material platform

In a new report now published in Science, primary authors Zhen Zhu, Michal Papaj, and an international research team in physics, materials science, and condensed matter at the Jiao Tong University, China, Massachusetts Institute ...

Nanophysics Nov 3, 2021

Quantifying spin in WTe2 for future spintronics

A RMIT-led, international collaboration published this week has observed large in-plane anisotropic magnetoresistance (AMR) in a quantum spin Hall insulator and the spin quantization axis of the edge states can be well-defined.

Optics & Photonics Sep 30, 2021

Study unveils the quantum nature of the interaction between photons and free electrons

For several decades, physicists have known that light can be described simultaneously as a wave and a particle. This fascinating 'duality' of light is due to the classical and quantum nature of electromagnetic excitations, ...

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 ...

Nanomaterials Sep 27, 2021

Physicists demystify magic: bona fide topological Mott insulator discovered in twisted bilayer graphene model

Imagine stacking two sheets of graphene—the 2D form of graphite, or the pencil at your hand—in which the carbon atoms form a hexagonal lattice and twist the top sheet out of alignment with the sheet below, yielding a ...

Condensed Matter Jun 18, 2021

Team discovers unexpected quantum behavior in kagome lattice

An international team led by researchers at Princeton University has uncovered a new pattern of ordering of electric charge in a novel superconducting material.

Quantum Physics Jun 9, 2021

Researchers achieve synergetic effects between spin-orbit coupling and Stark effect

Each electron carries one negative elementary charge, whose collective motion generates electric currents that drive the operation of lights, transistors and all kinds of electronic devices. However, as being an elementary ...

Quantum Physics May 28, 2021

Electrons waiting for their turn: New model explains 3D quantum material

Scientists from the Cluster of Excellence ct.qmat—Complexity and Topology in Quantum Matter have developed a new understanding of how electrons behave in strong magnetic fields. Their results explain measurements of electric ...

Soft Matter Apr 29, 2021

Understanding the charge pumping and relaxation of the chiral anomaly in a Dirac semimetal

The 3D Dirac and Weyl semimetals can be characterized by a charge chirality with the parallel or antiparallel locking of electron spin in its momentum. Such materials can exhibit a chiral magnetic effect associated with the ...

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