6533b7ddfe1ef96bd1275328
RESEARCH PRODUCT
Angular dependence of the domain wall depinning field in the sensors with segmented corners
D. HeinzeJ. WahrhusenMathias KläuiH. GrimmB. Boriesubject
010302 applied physics0301 basic medicineCondensed Matter - Materials ScienceHistoryMaterials scienceField (physics)Condensed matter physicsMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences01 natural sciencesComputer Science ApplicationsEducationMagnetic field03 medical and health sciences030104 developmental biologyDomain wall (magnetism)0103 physical sciencesAngular dependencedescription
Rotating domain wall based sensors that have recently been developed are based on a segmented looping geometry. In order to determine the crucial pinning of domain walls in this special geometry, we investigate the depinning under different angles of an applied magnetic field and obtain the angular dependence of the depinning field of the domain walls. Due to the geometry, the depinning field not only exhibits a 180$^\circ$-periodicity but a more complex dependence on the angle. The depinning field depends on two different angles associated with the initial state and the segmented geometry of the corner. We find that depending on the angle of the applied field two different switching processes occur and we can reproduce the angular dependence using a simple model calculation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-10-01 |