Spin Hall effect in Weyl semimetal for energy-efficient information technology

Spin Hall effect in Weyl semimetal for Energy-efficient Information Technology
Fig 1. A schematic presentation of spin Hall effect in Weyl semimetal 1T’ WTe2, showing the separation of spin-polarized electrons (up and down spin) on the surfaces of a sample by just passing a charge current. Credit: Bing Zhao

The discovery of topological Weyl semimetals in 2017 has revealed opportunities to realize several extraordinary physical phenomena in condensed matter physics. Now, researchers at Chalmers University of Technology have demonstrated the direct electrical detection of a large spin Hall effect in this topological quantum material. Weyl semimetal takes advantage of its strong spin-orbit coupling and novel topological spin-polarized electronic states in its band structure. These experimental findings can pave the way for the utilization of spin-orbit induced phenomena in developing next-generation of faster and energy-efficient information technology and have been published in the scientific journal Physical Review Research.


As our society is becoming more integrated with artificial intelligence (AI) and Internet-of-Things

Read More