Dzyaloshinskii-Moriya bias theory for thin magnetic slabs

Castillo-Sepúlveda, S; Corona, RM; De Souza, SF; Kiwi, M; Carvalho-Santos, VL; Altbir, D

Abstract

Magnetic bias has been thoroughly explored during recent decades. The off-center shift of the hysteresis loop is usually achieved through exchange or dipolar interactions. However, the recently identified Dzyaloshinskii-Moriya Bias (DMB) offers an alternative to dipolar and exchange bias. A key advantage of DMB is its occurrence in a single uniform physical component, without the need for multiple layers and interfaces required by other mechanisms. It applies to thin in-plane magnetic slabs with bulk Dzyaloshinskii-Moriya interaction. An important advantage of these systems is that an external magnetic field can control the magnitude of the loop shift. Here, we present a general theoretical framework for the conditions to obtain DMB, which also clarifies the underlying principles of the effect. Our results suggest that this mechanism opens several possibilities in developing innovative applications.

Más información

Título según WOS: Dzyaloshinskii-Moriya bias theory for thin magnetic slabs
Título de la Revista: APPLIED PHYSICS LETTERS
Volumen: 126
Número: 21
Editorial: AMER INST PHYSICS
Fecha de publicación: 2025
Idioma: English
DOI:

10.1063/5.0267687

Notas: ISI