Elemental distribution at the interfaces of Ni<SUB>70</SUB>Co<SUB>30</SUB>/Cu magnetic multilayers by X-ray anomalous scattering

AN Yu-Kai; DAI Bo; MAI Zhen-Hong; CAI Jian-Wang; WU Zong-Hua

Chinese Physics C> 2005, Vol. 29> Issue(S1) : 16-19

Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China2 Beijing Synchrotron Radiation Facility BSRF, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
The structures of [Ni₇₀Co₃₀(25A)/Cu(20A)]₂₀ multilayers were investigated by X-ray anomalous scattering technique. Different structural behaviors at the Cu/Ni₇₀Co₃₀ and Ni₇₀Co₃₀/Cu interfaces were obtained respectively.For the as-deposited sample, the interfaces are asymmetrical. An 8A thick CuNi₃ and a 4A thick NiCo layers are observed at the Cu/Ni₇₀Co₃₀ interface, however the Ni₇₀Co₃₀/Cu interface is sharp. For the annealed sample, the sharp Ni₇₀Co₃₀/Cu interface is replaced by a CuNi₂Co sublayer of about 12A thick. The X-ray diffuse scattering experiments, performed with the incident X-ray energy close to the Co, Ni and Cu K edges respectively, show the distribution of Co, Ni and Cu at the interfaces is not uniform.

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AN Yu-Kai, DAI Bo, MAI Zhen-Hong, CAI Jian-Wang and WU Zong-Hua. Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering[J]. Chinese Physics C, 2005, 29(S1): 16-19.

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Received: 2005-10-28
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沈阳化工大学材料科学与工程学院沈阳 110142

Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering

Corresponding author: AN Yu-Kai,

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China2 Beijing Synchrotron Radiation Facility BSRF, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2005-10-28

Accepted Date: 1900-01-01

Available Online: 2005-01-02

Abstract: The structures of [Ni₇₀Co₃₀(25A)/Cu(20A)]₂₀ multilayers were investigated by X-ray anomalous scattering technique. Different structural behaviors at the Cu/Ni₇₀Co₃₀ and Ni₇₀Co₃₀/Cu interfaces were obtained respectively.For the as-deposited sample, the interfaces are asymmetrical. An 8A thick CuNi₃ and a 4A thick NiCo layers are observed at the Cu/Ni₇₀Co₃₀ interface, however the Ni₇₀Co₃₀/Cu interface is sharp. For the annealed sample, the sharp Ni₇₀Co₃₀/Cu interface is replaced by a CuNi₂Co sublayer of about 12A thick. The X-ray diffuse scattering experiments, performed with the incident X-ray energy close to the Co, Ni and Cu K edges respectively, show the distribution of Co, Ni and Cu at the interfaces is not uniform.

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Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering

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Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering

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Elemental distribution at the interfaces of Ni70Co30/Cu magnetic multilayers by X-ray anomalous scattering

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Elemental distribution at the interfaces of Ni70Co30/Cu magnetic multilayers by X-ray anomalous scattering

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Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering

Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering