Magnetic property and interlayer segregation in spin valve metal multilayers
作者： Guanghua Yu , Li Minghua , Zhu Fengwu , Chai Chunlin , Jiang Hongwei
DOI: 10.1360/02YE9017
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摘要: The experimental results show that the exchange coupling field of NiFe/FeMn for Ta/NiFe/FeMn/Ta multilayers is higher than spin valve Ta/NiFe/Cu/NiFe/FeMn/Ta. In order to find out reason, composition and chemical states at surfaces Ta(12nm)/NiFe(7nm). Ta(12nm)/NiFe(7nm)/Cu(4nm) Ta(12nm)/NiFe(7nm)/Cu(3nm)/NiFe(5nm) were studied using X-ray photoelectron spectroscopy (XPS). no elements from lower layers float or segregate surface first second samples. However, Cu atoms multilayers, i. e. interface Ta/NiFe/Cu/NiFe/FeMn/Ta multilayers. We believe presence one important factors causing be
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