Effect of Pt in TbFeCo on magnetic and magneto-optical properties

• ITOH Y.

  Information Storage Materials Laboratory, Toyota Technological Institute

• SUZUKI T.

  Information Storage Materials Laboratory, Toyota Technological Institute

Bibliographic Information

Other Title

• TbFeCoの磁気および磁気光学特性に及ぼすPtの効果

Abstract

The effect of Pt additives in TbFeCo(Pt)/Pt multilayers on magnetic and magneto-optical properties is investigated. The perpendicular magnetic anisotropy constant K_u of the multilayers becomes larger(〜2.5×10^6erg/cm^3)with Pt layers than that of a TbFeCo(Pt)single layer. Also, Pt layers are found to contribute significantly to the polar Kerr spectra at ultra-violet photon energise beyond 3 eV. The Kerr rotation θ_k and ellipticity η_k are enhanced with increasing Pt layer-thickness t_Pν and become saturated at t_Pt=12 Å. This result implies that Pt atoms up to about 6 Å from the interfaces are contributing to the Kerr activity. The largest enhancement in the Kerr rotation θ_k is found at about 5 eV.

Journal

• IEICE technical report. Magnetic recording

  IEICE technical report. Magnetic recording 97 (573), 9-15, 1998-03-05

  The Institute of Electronics, Information and Communication Engineers

Keywords

• Magneto-optical
• Pt layer
• TbFeCo
• Multilayer
• Ultra-violet

Details

• CRID: 1570009752476828032
• NII Article ID: 110003186158
• NII Book ID: AN10013050
• Text Lang: ja
• Data Source:
  • CiNii Articles