Move over, silicon switches: There's a new way to compute

Researchers have introduced a voltage-controlled topological spin switch for logic and memory devices, such as computer hard drives, that now use nanomagnetic mechanisms to store and manipulate information. Unlike silicon transistors, these devices require no energy to maintain their magnetic state: Energy is needed only for reading and writing information. The researchers' innovation greatly reduces the energy and heat used during such reading and writing processes, and may improve security, as well.

from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/05/190508093719.htm