Voltage-Controlled Spin-Wave Coupling in Adjacent Ferromagnetic-Ferroelectric Heterostructures

Abstract

The manipulation of spin waves is the basis of $m\phantom{\rule{0}{0ex}}a\phantom{\rule{0}{0ex}}g\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}o\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}s$, one approach to the next generation of hardware for logic and data storage. The authors demonstrate the voltage-controlled transfer of spin-wave energy between adjacent ferrimagnetic-ferroelectric heterostructures. The coupling efficiency of the laterally coupled multiferroics can be tuned by independently varying applied magnetic and electric fields, which offers enticing prospects for magnonic devices.