Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Multiple Walker breakdowns in magnetic multilayers
oleh: Joon Moon, Jaesung Yoon, Kitae Kim, Seong-Hyub Lee, Dae-Yun Kim, Sug-Bong Choe
Format: | Article |
---|---|
Diterbitkan: | Nature Portfolio 2022-02-01 |
Deskripsi
Abstract Herein, we report an exotic domain-wall dynamics showing double Walker breakdowns in magnetic multilayer films composed of two magnetic layers. Such multiple Walker breakdowns are attributed to the internal magnetic dipole field, which is antisymmetric on the domain walls of the lower and upper magnetic layers. A micromagnetic simulation shows four phases of the domain-wall dynamics, which result in a phase diagram with the phase boundaries of the double Walker breakdown fields. Such double Walker breakdowns lead to two minima in the variation of the domain-wall velocity, as often observed experimentally.