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Angular Dependence of the Interlayer Exchange Coupling on the Nonmagnetic Cap Layers |
| ZHANG Xiang-dong1;LI Lie-ming2;ZHAN Ye-hong3;LI Bo-zang1;PU Fu-ke1,4 |
| 1Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Physics, Tsinghua University, Beijing 100084
3Department of Physics,Guangzhou Industry University, Guangzhou 510090
4Department of Physics, Guangzhou Normal College, Guangzhou 510400
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| Cite this article: |
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ZHANG Xiang-dong, LI Lie-ming, ZHAN Ye-hong et al 1997 Chin. Phys. Lett. 14 789-792 |
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Abstract Based on the one-band tight-binding model, the angular dependence of interlayer exchange coupling was investigated on the nonmagnetic cap layers in a magnetic sandwich covered on both sides by nonmagnetic films. The results show that (1) the appearance of noncollinear exchange coupling is very sensitive to the cap layers, (2) the nonoscillatory component of the coupling strength varies generally with the thickness of outer nonmagnetic films, and (3) the variation of exchange coupling exhibits distinct features in the cases where the thicknesses of both outer nonmagnetic films vary simultaneously and where the thickness of one of the two outer nonmagnetic films is fixed while the other is varied.
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| Keywords:
75.70.Cn
73.20.Dx
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Published: 01 October 1997
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| PACS: |
75.70.Cn
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(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))
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73.20.Dx
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