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Title: Effect of capping layer on interlayer coupling in synthetic spin valves
Authors: Li, K.
Qiu, J.
Han, G.
Guo, Z.
Zheng, Y.
Wu, Y. 
Li, J.
Issue Date: Jan-2005
Citation: Li, K., Qiu, J., Han, G., Guo, Z., Zheng, Y., Wu, Y., Li, J. (2005-01). Effect of capping layer on interlayer coupling in synthetic spin valves. Physical Review B - Condensed Matter and Materials Physics 71 (1) : -. ScholarBank@NUS Repository.
Abstract: The magnetic and transport properties of high quality synthetic spin-valves with the structure of Ta/NiFe/IrMn/CoFe/Ru/CoFe/NOL/CoFe/Cu/CoFe/CL were studied by using magnetoresistance measurements. Here Ti, Hf, and Al are used as the capping layer. It is found that both the thickness and materials properties of the capping layers can affect the interlayer coupling field. The interlayer coupling field oscillates weakly with respect to the thickness of the Ti and Hf capping layers. Extremely strong ferromagnetic coupling has been observed when the thickness of the Al capping layer is in a certain range where resonant exchange coupling takes place. The strength of the interlayer coupling is inversely proportional to the square of the thickness of the spacer. It is a typical characteristic of quantum size effect. ©2005 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.71.014436
Appears in Collections:Staff Publications

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