Nobuaki Kikuchi et al 1999 J. Phys.: Condens. Matter 11 L485 doi:10.1088/0953-8984/11/43/103
Influence of 5d transition elements on the magnetocrystalline anisotropy of hcp-Co
Nobuaki Kikuchi
, Osamu Kitakami, Satoshi Okamoto, Yutaka Shimada, Akimasa Sakuma
, Yoshichika Otani§ and Kazuaki Fukamichi§
LETTER TO THE EDITOR
We have studied the effects of 5d transition elements (X = W, Re, Ir, and Pt) on the magnetocrystalline anisotropy energy (MAE) of epitaxially grown hexagonal-close-packed (hcp)-Co .gif){kind=icon}
single crystal films. The MAE of Co-X significantly changes, depending on X. With increasing numbers of valence electrons in X, the sign of the first anisotropy constant K1 changes from positive to negative, indicating that the easy axis of magnetization rotates from the c-axis to the c-plane. The second anisotropy constant K2 monotonically increases with the number of valence electrons in X. All these variations were found to be systematic and are discussed in conjunction with the structural analyses.
- PACS
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75.70.-i Magnetic properties of thin films, surfaces, and interfaces
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
- Subjects
- Dates
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Issue 43 (1 November 1999)
Received 16 September 1999
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Influence of 5d transition elements on the magnetocrystalline anisotropy of hcp-Co
Nobuaki Kikuchi et al 1999 J. Phys.: Condens. Matter 11 L485
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