Magneto-ionic and electrostatic gating of magnetism: Phenomena and devices

Voltage control of magnetism is among the most promising routes to low-power control of magnetic states in spintronics applications. Charge and ionic effects in technologically relevant magnetic materials have shown great potential, offering high speed for charge effects and non-volatility in the case of ionic effects, linked to their specific gating mechanisms and device designs. It is therefore of great importance to address the current challenges to bring this technology closer to applications, such as improving performance in charged based devices and reversibility and cyclability in magneto-ionics.

In this special topic we will focus on advances made in both ionic and charge based magnetic gating, contributions will include gating of magnetic domain wall motion, the Dzyaloshinsky-Moriya interaction, spin-torque, magnetic anisotropy magnetization dynamics and inter-layer coupling in a variety of magnetic materials. It will be of particular interest to highlight the progress made in designing devices and materials targeting applications in, for example, magnetic memories and neuromorphic computing. Contributions will also include work aimed at deepening the theoretical understanding of these two magnetic gating mechanisms with an impact on applications. This special topic has therefore a highly interdisciplinary scope that brings together physics, chemistry, material science and device engineering.

Guest Editors: Daichi Chiba, Dustin Gilbert, Simon Granville, Liza Herrera Diez, and Karin Leistner