Search results for dirac

General Physics Sep 8, 2020

Kondo physics in antiferromagnetic Weyl semimetal films

Emerging quantum materials can be defined by topology and strong electron correlations, although their applications in experimental systems are relatively limited. Weyl semimetals incorporating magnetism offer a unique and ...

General Physics Sep 2, 2020

Zooming in on dark matter

Cosmologists have zoomed in on the smallest clumps of dark matter in a virtual universe—which could help us to find the real thing in space.

Optics & Photonics Aug 31, 2020

Demonstrating the dynamics of electron-light interaction originating from first principle

With the highest possible spatial resolution of less than a millionth of a millimeter, electron microscopes make it possible to study the properties of materials at the atomic level and thus demonstrate the realm of quantum ...

Quantum Physics Aug 17, 2020

Unexpectedly fast conduction electrons in Na3Bi

An Australian-led study uses a scanning-tunneling microscope "trick" to map electronic structure in Na3Bi, seeking an answer to that material's extremely high electron mobility.

Nanomaterials Aug 10, 2020

Discovery of massless electrons in phase-change materials provides next step for future electronics

Researchers have found electrons that behave as if they have no mass, called Dirac electrons, in a compound used in rewritable discs, such as CDs and DVDs. The discovery of 'massless' electrons in this phase-change material ...

General Physics Jul 31, 2020

When Dirac meets frustrated magnetism

The fields of condensed matter physics and materials science are intimately linked because new physics is often discovered in materials with special arrangements of atoms. Crystals, which have repeating units of atoms in ...

Quantum Physics Jul 23, 2020

Scientists discover a topological magnet that exhibits exotic quantum effects

An international team led by researchers at Princeton University has uncovered a new class of magnet that exhibits novel quantum effects that extend to room temperature.

Nanophysics Jul 22, 2020

Diamonds shine a light on hidden currents in graphene

It sounds like pure sorcery: using diamonds to observe invisible power swirling and flowing through carefully crafted channels. But these diamonds are a reality. JQI Fellow Ronald Walsworth and Quantum Technology Center (QTC) ...

Materials Science Jul 15, 2020

Higher-order topology found in 2-D crystal

Over the last decade, the field of condensed matter physics has experienced a golden age with the discovery of new materials and properties, and related technologies being developed at breakneck speed thanks to the arrival ...

Astronomy Jul 15, 2020

Supercomputer reveals atmospheric impact of gigantic planetary collisions

The giant impacts that dominate late stages of planet formation have a wide range of consequences for young planets and their atmospheres, according to new research.

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