“Valleytronics” make spintronics even better

Categorie(s) : News, Research

Published : 5 October 2015

An international team led by researchers from INAC recently demonstrated that, in SOI transistors, electronic spin alignment under an outside magnetic field is much easier when restricted to a single “valley.”

The valley index is a quantum number that shows the relationship between the energy and amount of electron movement within the silicon on a curve characterized by two minimums known as valleys. The valley index is well-known to researchers; however, it had not been used since the invention of the transistor in 1947.

With the emergence of so-called “valleytronics,” spintronics could now have a very handy new tool for controlling spin. The research was published in Nature Communications.


Contact: vincent.renard@cea.fr

More information