Magnetic Properties of L12-type CrPt3(111) film having the different order parameters

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概要

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•   We have investigated the fabrication, structural and magnetic properties of L12-type CrPt3(111) film by annealing Cr(110)/Pt(111) superlattice. L12-type CrPt3(111) films are successfully fabricated above the annealing temperature of 1173 K. The order parameter is altered by changing the annealing temperature and the Pt thickness in Cr/Pt superlattice in keeping Cr thickness. While the Cr/Pt superlattice is non-magnetic, L12-type CrPt3 film shows the magnetic hysteresis at room temperature, and the magnetically ordered L12-type CrPt3(111) film possesses the perpendicular magnetic anisotropy. The perpendicular magnetic anisotropy energy increases with increasing order parameter S, and the effective magnetic anisotropy energy K of 3.3×106 erg/cc is obtained at S∼1.0. The magnetic domain energy σW is estimated from domain pattern at remanent state. For the sample with S∼1.0, σW of 1.49 erg/cm2 is obtained.

• 社団法人　日本磁気学会の論文

著者

• Shiratsuchi Yu

  Graduate School of Engineering, Osaka University

• Nakatani R.

  Graduate School of Engineering, Osaka University

• Yamamoto M.

  Graduate School of Engineering, Osaka University

• Yamashita Mitsuyoshi

  Graduate School of Engineering, Osaka University

• Nakatani Ryoichi

  Graduate School of Engineering, Osaka University

• Nomura H.

  Graduate School of Engineering, Osaka University

• Shiratsuchi Y.

  Graduate School of Engineering, Osaka University

• Yamashita M.

  Graduate School of Engineering, Osaka University

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