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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

  • 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.
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. shu
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Received: 2005-10-28
Revised: 1900-01-01
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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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