Reversal of nanomagnets by propagating magnons in ferrimagnetic yttrium iron garnet enabling nonvolatile magnon memory

Abstract

Spin wave based computing has great promise, offering advantage of low power consumption, aided by the absence of currents and therefore Joule heating. However, the absence of a method of directly storing the information contained in the spin waves represents a significant hurdle. Here, Baumgaertl and Grundler demonstrate the reversal of a nanomagnet via spin waves with small spin wave power requirements.