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Getting a look under the hood of topological insulators

September 10, 2019

Certain materials, like copper, conduct electricity very well.  Other materials, like glass, do not.  A certain kind of…
Limitation exposed in promising quantum computing material

July 17, 2019

Quantum computers promise to perform operations of great importance believed to be impossible for our technology today. Current…
Physics at the Edge of Topological Insulators

June 13, 2019

In 2005, condensed matter physicists Charles Kane and Eugene Mele considered the fate of graphene at low temperatures.…
Weak but strong

April 23, 2019

The demand for ever-increasing performance of technology encourages research into new ways to progress the state of the…
‘Magnetic graphene’ switches between insulator and conductor

February 5, 2019

Researchers have found that certain ultra-thin magnetic materials can switch from insulator to conductor under high pressure, a…
Chromium triiodide produced in a high-temperature furnace at Rice University. In neutron-scattering experiments, the material behaved like a magnetic topological insulator. Illustration by Jeff Fitlow/Rice University
‘Magnetic topological insulator’ makes its own magnetic field

November 20, 2018

A team of U.S. and Korean physicists has found the first evidence of a two-dimensional material that can…
First two-dimensional material that performs as both topological insulator and superconductor

November 2, 2018

A transistor based on the 2-D material tungsten ditelluride (WTe2) sandwiched between boron nitride can switch between two…
A physics treasure hidden in the pattern of wallpaper

July 20, 2018

An international team of scientists has discovered a new form of insulating material with a metallic surface that could…
Researchers find path to discovering new topological materials, holding promise for technological applications

July 25, 2017

An international team of researchers has found a way to determine whether a crystal is a topological insulator…
New ways of representing information could transform digital technology

June 5, 2017

Unique geometries for electron magnetic moments may overcome fundamental limits of computer memory and logic Many people who…
Research accelerates quest for quicker, longer-lasting electronics

May 25, 2017

In the world of electronics, where the quest is always for smaller and faster units with infinite battery…
NRL Detects Opposite Spin in Topological Insulator Surface States

January 9, 2017

Scientists at the U.S. Naval Research Laboratory (NRL) have reported the first direct comparison of the spin polarization…
NIST Collaboration Heats Up Exotic Topological Insulators

November 2, 2016

Fashion is changing in the avant-garde world of next-generation computer component materials. Traditional semiconductors like silicon are releasing…
Researchers observe phase transition thought impossible

October 28, 2015

An ultrapure material taken to pressures greater than that in the depths of the ocean and chilled to…
Observation of quantization in surface Dirac states of topological insulator

May 19, 2015

Topological insulators are an unusual class of materials, which do not conduct electricity in their insulating interiors but…
Long-Sought Magnetic Mechanism Observed in Exotic Hybrid Materials

April 17, 2015

Scientists have measured the subatomic intricacies of an exotic phenomenon first predicted more than 60 years ago. This…
Self-destructive effects of magnetically-doped ferromagnetic topological insulators

January 20, 2015

The discovery of “topologically protected” electrical conductivity on the surface of some materials whose bulk interior acts as…
Engineers Unlock Potential for Faster Computing: New way to create topological insulators

September 24, 2014

University of Utah engineers discovered a way to create a special material – a metal layer on top…
Magnetic fields make the excitons go ’round

September 22, 2014

A major limitation in the performance of solar cells happens within the photovoltaic material itself: When photons strike…
Topological devices as an enabler of dissipationless electronics

September 2, 2014

When a strong magnetic field is applied to a layered semiconductor device, a current flow emerges without any…
The birth of topological spintronics

July 24, 2014

Nitin Samarth, department head of physics at Penn State, works with the molecular beam epitaxy equipment in his lab.…
Detection of Dirac state at a solid-state interface

March 4, 2014

Topological insulators are a new class of semiconductor that are insulators internally but possess a conducting metallic surface…
NRL Scientists Demonstrate Remarkable Electrical Properties of Topological Insulators

February 25, 2014

Scientists at the U.S. Naval Research Laboratory (NRL) have demonstrated for the first time that one can electrically…
Theorists predict new forms of exotic insulating materials

February 7, 2014

Topological insulators — materials whose surfaces can freely conduct electrons even though their interiors are electrical insulators —…
Theorists Predict New State of Quantum Matter May Have Big Impact on Electronics

December 18, 2013

Constantly losing energy is something we deal with in everything we do. If you stop pedaling a bike,…
Update: A New Topological Insulator Breaks Symmetry, and That’s a Good Thing

November 18, 2013

Scientists working at SLAC, Stanford, Oxford, Berkeley Lab and in Tokyo have discovered a new type of quantum…
A new topological insulator breaks symmetry, and that’s a good thing

November 6, 2013

In this drawing of the asymmetric topological insulator BiTeCl, the bottom surface contains an excess of electrons while…
Persuading light to mix it up with matter

October 25, 2013

Researchers at MIT have succeeded in producing and measuring a coupling of photons and electrons on the surface…
Superconducting qualities of topological insulators demonstrated

April 11, 2013

Topological insulators (TIs) are an exciting new type of material that on their surface carry electric current, but…
Surprising Control over Photoelectrons from a Topological Insulator

March 20, 2013

Plain-looking but inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science.…
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