Current-induced magnetic switching in nanopillar spin-valve systems with double free layers

Title
Current-induced magnetic switching in nanopillar spin-valve systems with double free layers
Authors
You, C.Y.; Choe, S.B.; Lee, J.C.
Keywords
MAGNETORESISTANCE, MULTILAYERS
Issue Date
2007-05
Publisher
AMER INST PHYSICS
Abstract
Double soft ferromagnetic layers-CoFe/Pd/CoFe-were employed as a free layer of nanopillar spin valve. The system showed double jumps in electric resistance with respect to the spin current. Each jump corresponds to the switching of one of the CoFe layers in the double free layer. The absolute change in resistance of each jump is the same in the resistance versus current scans taken at different applied field values. While both jumps are present only in larger fields, only one jump is observed in low fields, which is attributed to the reversal of the inner CoFe layer. Furthermore, in the latter case an inversion of the hysteresis has been observed, which is explained by telegraph noise.
URI
http://dspace.inha.ac.kr/handle/10505/1676
ISSN
0021-8979
Appears in Collections:
College of Natural Science(자연과학대학) > Physics (물리학) > Journal Papers, Peports(물리학 학술논문, 보고서)
Files in This Item:
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