The flow of electric charge lies at the heart of electronic circuits. However, electrons also have spin, and flows of electron spin play a vital role in spintronic circuits. These could be essential for our future computing ...
Quantum Physics
Apr 9, 2020
0
107
In 1820, Hans Christian Oersted gave a demonstration on electricity to a class of advanced students at the University of Copenhagen in Denmark. Using an early battery prototype, he looked to see what effect an electric current ...
General Physics
Mar 20, 2020
0
508
Permanent magnets akin to those used on refrigerators could speed the development of fusion energy—the same energy produced by the sun and stars.
General Physics
Mar 11, 2020
6
5249
zAt the Department for Materials of the ETH in Zurich, Pietro Gambardella and his collaborators investigate prospective memory devices. They should be fast, retain data reliably for a long time and also be cheap. So-called ...
Nanophysics
Feb 19, 2020
0
305
Most modern electronic devices rely on tiny, finely-tuned electrical currents to process and store information. These currents dictate how fast our computers run, how regularly our pacemakers tick and how securely our money ...
General Physics
Feb 3, 2020
1
2683
Spin-orbit torque (SOT) magnetization switching is a phenomenon induced by a spin current, which is in turn generated by a charge current. Eliciting this phenomenon could help to manipulate the magnetization in spintronic ...
A team of physicists has discovered an electrical detection method for terahertz electromagnetic waves, which are extremely difficult to detect. The discovery could help miniaturize the detection equipment on microchips and ...
General Physics
Jan 27, 2020
1
5277
Researchers at the University of Chicago and the U.S. Department of Energy's Argonne National Laboratory have developed a new method to measure how photocurrents flow in a 2-D material—a result that could have implications ...
Condensed Matter
Jan 22, 2020
0
19
Deep within Earth, swirling liquid iron generates our planet's protective magnetic field. This magnetic field is invisible but is vital for life on Earth's surface: it shields the planet from harmful solar wind and cosmic ...
Earth Sciences
Jan 20, 2020
11
2083
A device that can separate and recombine pairs of electrons may offer a way to study an unusual form of superconductivity, according to RIKEN physicists. This superconducting state would involve exotic particles called Majorana ...
Superconductivity
Dec 27, 2019
0
470
