Search results for quantum anomalous hall

General Physics May 25, 2017

Research makes topological insulators magnetic well above room temperatures

In the world of electronics, where the quest is always for smaller and faster units with infinite battery life, topological insulators (TI) have tantalizing potential.

Nanomaterials Nov 22, 2016

New ultra-thin semiconductor could extend life of Moore's Law

Following a decade of intensive research into graphene and two-dimensional materials a new semiconductor material shows potential for the future of super-fast electronics.

Condensed Matter Jul 27, 2016

The hot attraction of gold

Gold had long been considered a non-magnetic metal. But researchers at Tohoku University recently discovered that gold can in fact be magnetized by applying heat.

General Physics Jul 20, 2016

Mixing topology and spin

In the pursuit of material platforms for the next generation of electronics, scientists are studying new compounds such as topological insulators (TIs), which support protected electron states on the surfaces of crystals ...

General Physics May 9, 2016

Achieving zero resistance in energy flow

Laptop computer users operating their devices on their laps will be familiar with the heat they generate, which comes from electrical resistance converting waste energy to heat. Scientists dream of creating electronic devices ...

Condensed Matter Feb 9, 2016

Physicist studies concepts affecting fluids at different scales

On the wall of Prof. Paul Wiegmann's office hang two large, artistically rendered photographs of fluid vortices. One shows one big vortex, while the other depicts many vortices moving collectively.

General Physics Dec 16, 2015

Time-resolved measurement of the anomalous velocity

The movement of charge carriers perpendicular to an electric driving field – even without a magnetic field – constitutes one of the most intriguing properties of carriers in solids. This anomalous velocity is at the origin ...

Nanomaterials Aug 5, 2015

Team claims to have created a sample of stanene

(Phys.org)—A team of researchers with members from Stanford University and several institutions in China is claiming to have found a way to create a sample of stanene—a one-atom thick mesh (buckled honeycomb) of tin that ...

Nanomaterials Jan 26, 2015

Researchers make magnetic graphene

Graphene, a one-atom thick sheet of carbon atoms arranged in a hexagonal lattice, has many desirable properties. Magnetism alas is not one of them. Magnetism can be induced in graphene by doping it with magnetic impurities, ...

General Physics Oct 17, 2014

Mapping the relationship between two quantum effects known as topological insulators

At very low temperatures and under strong magnetic fields, thin films of semiconducting materials can display a phenomenon known as the quantum Hall (QH) effect, which can allow electrons to flow with no energy loss. In a ...

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