High-speed metamagnetic switching of FeRh through Joule heating.

ABSTRACT: Due to its proximity to room temperature and demonstrated high degree of temperature tunability, FeRh's metamagnetic ordering transition is attractive for novel high-performance computing devices seeking to use magnetism as the state variable. We demonstrate electrical control of the antiferromagnetic-to-ferromagnetic transition via Joule heating in FeRh wires. The magnetic transition of FeRh is accompanied by a change in resistivity, which can be probed electrically and allows for integration into switching devices. Finite element simulations based on abrupt state transition within each domain result in a globally smooth transition that agrees with the experimental findings and provides insight into the thermodynamics involved. We measure a 150 K decrease in transition temperature with cu

SUBMITTER: Blumenschein NA 

PROVIDER: S-EPMC9772412 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature