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Current-induced Spin Wave Excitations in Asymmetric Nanopillar Junctions
- Authors
- Fiandimas, Arie; Lee, Kyung Jin; Shin, Kyung-Ho
- Issue Date
- 6월-2009
- Publisher
- KOREAN MAGNETICS SOC
- Keywords
- nanopillar; magnetotransport; spin transfer torque; spin wave exitation
- Citation
- JOURNAL OF MAGNETICS, v.14, no.2, pp.90 - 92
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MAGNETICS
- Volume
- 14
- Number
- 2
- Start Page
- 90
- End Page
- 92
- ISSN
- 1226-1750
- Abstract
- This study examined the current-induced spin wave excitation in asymmetric nanopillar junctions with a stack sequence of 20 nm Pt/10 nm Cu/7 nm NiFe/300 nm Cu, and a circular lateral dimension of 240 nm. An analysis of the magnetic and magnetotransport characteristics of the junction showed a possible spin transfer effect at this sample dimension when the magnetization was switched from a vortex state to another state. This finding is expected to help improve the understanding of the spin transfer torque phenomenon in nanopillar junctions.
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