Eddy currents, also called Foucault current, are loops of electrical current induced within a conductor by a time-varying magnetic field in that conductor (Figure 1). This phenomenon of induction was ...

This article reviews the fundamentals, phenomena, devices and materials of spin-transfer torques, at the heart of this rapidly advancing field of current-induced magnetization dynamics.

ISTOCK / GETTY IMAGES PLUS "Auroras and geomagnetically induced currents are caused by similar space weather drivers," paper co-author Denny Oliveira, a researcher at NASA's Goddard Space Flight ...

Lead author Dr Denny Oliveira, of Nasa’s Goddard Space Flight Centre, Maryland, said: ‘Auroras and geomagnetically induced currents are caused by similar space weather drivers. ‘The aurora ...

Save guides, add subjects and pick up where you left off with your BBC account. An electric current can be induced in in a coil of wire by moving a magnet in and out of the coil. AC generators are ...

Geomagnetic storms generate induced currents, which flow through the electrical grid. The geomagnetically induced currents, which can be in excess of 100 amperes, flow into the electrical ...

“Auroras and geomagnetically induced currents are caused by similar space weather drivers,” explained Dr Denny Oliveira of NASA’s Goddard Space Flight Center, lead author of the article.

This situation arises as for each quasi-momentum in the valley Full control over light induced valley currents, their magnitude and direction, thus requires going beyond the spin-valley locking ...