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Materials Science Feb 20, 2018

Neutrons reveal the wild Weyl world of semimetals

The observation of an abnormal state of matter in a two-dimensional magnetic material is the latest development in the race to harness novel electronic properties for more robust and efficient next-generation devices.

Nanomaterials Feb 12, 2018

Researchers have fabricated two types of trilayer graphene with different electrical properties

Researchers in Japan have found a way to form two materials, each made of three layers of graphene. Each material's graphene is stacked differently and has unique electrical properties. Their work has implications for the ...

General Âé¶¹ÒùÔºics Jan 17, 2018

Study finds topological materials could boost the efficiency of thermoelectric devices

What if you could run your air conditioner not on conventional electricity, but on the sun's heat during a warm summer's day? With advancements in thermoelectric technology, this sustainable solution might one day become ...

Computer Sciences Jan 12, 2018

What sort of stream networks do scientific ideas flow along?

"Panta rhei, everything flows." If Heraclitus of Ephesus was correct, ideas, like rivers, should flow. Tracking the flow of ordinary ideas can be difficult. In the case of scientific ideas, it is much easier. The researchers ...

General Âé¶¹ÒùÔºics Dec 27, 2017

A powerful guiding principle for topological quantum synthesis

Topological materials can be classified into topological insulators (TIs), topological crystalline insulators, topological Dirac semimetals, topological Weyl semimetals, topological nodal-line semimetals, and others. Such ...

Nanophysics Dec 22, 2017

Electronically-smooth '3-D graphene': A bright future for trisodium bismuthide

Researchers have found that the topological material trisodium bismuthide (Na3Bi) can be manufactured to be as 'electronically smooth' as the highest-quality graphene-based alternative, while maintaining graphene's high electron ...

General Âé¶¹ÒùÔºics Dec 22, 2017

Weyl particles detected in strongly correlated electron systems

At TU Wien recently, particles known as 'Weyl fermions' were discovered in materials with strong interaction between electrons. Just like light particles, they have no mass but nonetheless they move extremely slowly.

Quantum Âé¶¹ÒùÔºics Dec 22, 2017

Researchers discover a valleytronics route towards reversible computer

In many two-dimensional (2-D) materials, electrons not only possess charge and spin, but further exhibit an unusual quantum feature. Electrons residing in many 2-D materials can live in well-separated energy minima, and the ...

Astronomy Dec 20, 2017

'Cosmic lantern' could help us further understand the fate of the universe

New research has provided a deeper insight into emission line galaxies, used in several ongoing and upcoming surveys, to help us further understand the composition and fate of the universe.

Nanomaterials Dec 12, 2017

Engineers create artificial graphene in a nanofabricated semiconductor structure

Researchers at Columbia Engineering, experts at manipulating matter at the nanoscale, have made an important breakthrough in physics and materials science, recently reported in Nature Nanotechnology. Working with colleagues ...

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