Voltage control of interface rare-earth magnetic moments
Alejandro O. Leon, Adam B. Cahaya, and Gerrit E. W. Bauer
TL;DR
This paper presents a method to control rare earth magnetic moments at interfaces using voltage, enabling efficient electric field-induced magnetic resonance and switching for spintronic applications.
Contribution
It introduces a novel coupling mechanism between voltage and rare earth magnetic moments, facilitating power-efficient control in spintronic devices.
Findings
Voltage can effectively manipulate rare earth magnetic moments.
Rare earth-mediated torques enable electric field-induced ferromagnetic resonance.
Potential for low-power spintronic device control.
Abstract
The large spin orbit interaction in rare earth atoms implies a strong coupling between their charge and spin degrees of freedom. We formulate the coupling between voltage and the local magnetic moments of rare earth atoms with partially filled 4f shell at the interface between an insulator and a metal. The rare earth-mediated torques allow power-efficient control of spintronic devices by electric field-induced ferromagnetic resonance and magnetization switching.
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