Effect of Spin Memory Loss on Spin Transfer Torque
- Authors
- Lee, Seo-Won; Lee, Kyung-Jin
- Issue Date
- 10월-2009
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Spin transfer torque; Current-induced magnetization switching; Diffusive transport
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, no.4, pp.1501 - 1508
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 55
- Number
- 4
- Start Page
- 1501
- End Page
- 1508
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/119163
- DOI
- 10.3938/jkps.55.1501
- ISSN
- 0374-4884
- Abstract
- We investigate how the spin memory loss at interfaces affects the spin transfer torque in the framework of the drift-diffusion model. The spin memory loss changes the spin accumulation in the non-magnetic spacer separating the two ferromagnets in a spin valve structure and, thus, the spin transfer torque. By comparing theoretical values of the spin transfer torque with experimental results, we found that non-zero spin memory loss is essential to explain the experimental switching current densities in the current-induced magnetization switching. The spin memory loss determined by the comparison is in good agreement with the value determined by experimental measurement of giant magnetoresistance.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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