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Browse Journals & Magazines > Applied Physics Letters ...> Volume:89 Issue:25 Help

Temperature dependence of intrinsic switching current of a Co nanomagnet

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5 Author(s)
Yang, T. ; Frontier Research System, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan ; Hirohata, A. ; Hara, M. ; Kimura, T.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2420789 

The temperature dependence of the switching current of a magnetic nanopillar is investigated from 10 to 290 K. According to the switching probability measurement with the pulsed current, and the differential resistance measurement with sweeping the dc current, the intrinsic switching currents increase with decreasing the temperature. Transport calculations show that this temperature dependence is closely related to the reduced spin accumulation and spin polarization of the electrical current at low temperatures, attributed to the varied transport parameters. The conclusion is in accordance with the temperature dependence of the resistance difference between antiparallel and parallel magnetic configurations.

Published in:
Applied Physics Letters  (Volume:89 ,  Issue: 25 )

Date of Publication: Dec 2006

Page(s):
252505 - 252505-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2420789
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Dec 2006

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