Chiral magnetoresistance in Pt/Co/Pt zigzag wires
SCIE
SCOPUS
- Title
- Chiral magnetoresistance in Pt/Co/Pt zigzag wires
- Authors
- YIN, Yuxian; HAN, DS; KIM, June-Seo; LAVRIJSEN, Reinoud; LEE, Kyung-Jin; LEE, Seo-Won; KIM, Kyoung-Whan; LEE, HYUN-WOO; SWAGTEN, Henk J. M.; KOOPMANS, Bert
- Date Issued
- 2017-03
- Publisher
- AMER INST PHYSICS
- Abstract
- The Rashba effect leads to a chiral precession of the spins of moving electrons, while the Dzyaloshinskii-Moriya interaction (DMI) generates preference towards a chiral profile of local spins. We predict that the exchange interaction between these two spin systems results in a "chiral" magnetoresistance depending on the chirality of the local spin texture. We observe this magnetoresistance by measuring the domain wall (DW) resistance in a uniquely designed Pt/Co/Pt zigzag wire and by changing the chirality of the DW with applying an in-plane magnetic field. A chirality-dependent DW resistance is found, and a quantitative analysis shows a good agreement with a theory based on the Rashba model. Moreover, the DW resistance measurement allows us to independently determine the strength of the Rashba effect and the DMI simultaneously, and the result implies a possible correlation between the Rashba effect, the DMI, and the symmetric Heisenberg exchange.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/41092
- DOI
- 10.1063/1.4979031
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 110, no. 12, page. 122401, 2017-03
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.