Discovery and characterization of a new type of domain wall in a row-wise antiferromagnet.

ABSTRACT: Antiferromagnets have recently moved into the focus of application-related research, with the perspective to use them in future spintronics devices. At the same time the experimental determination of the detailed spin texture remains challenging. Here we use spin-polarized scanning tunneling microscopy to investigate the spin structure of antiferromagnetic domain walls. Comparison with spin dynamics simulations allows the identification of a new type of domain wall, which is a superposition state of the adjacent domains. We determine the relevant magnetic interactions and derive analytical formulas. Our experiments show a pathway to control the number of domain walls by boundary effects, and demonstrate the possibility to change the position of domain walls by interaction with movable adso

SUBMITTER: Spethmann J 

PROVIDER: S-EPMC8190316 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature