Probing the Magnetic Polarizations of Delocalized Electrons in Exchange-coupled Co/CuNi Multilayers by X-ray Magnetic Circular Dichroism Measurements(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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Magnetic polarizations of delocalized electrons in spacer layers are detected in exchange-coupled Co/CuNi multilayers by a measurement of X-ray magnetic circular dichroic absorptions. The size of the Cu K-edge dichroism shows a variation closely related to the oscillatory exchange coupling as a function of the spacer CuNi thickness. The magnetic polarization of the CuNi 4p electrons is locally minimal at the spacer thickness where the magnetoresistance reaches a local maximum, indicating that the integrated local spin density in the spacer layer oscillates with the spacer thickness with the same period as, but in 180° phase with, the indirect coupling of the Co moments across the CuNi layer.
- 一般社団法人日本物理学会の論文
- 2005-02-15
著者
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Yamasaki Hironori
Graduate School Of Materials Science Nara Institute Of Science And Technology
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MASUI Takahito
Graduate School of Materials Science, Nara Institute of Science and Technology
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Ishiji Kotaro
Research And Education Center For Materials Science Nara Institute Of Science And Technology:(presen
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Hashizume Hiroo
Research And Education Center For Materials Science Nara Institute Of Science And Technology
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