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Surface structures and magnetic anisotropies of a Fe/Pt (001) surface: An ab initio study
- Issue Date
- Apr-2011
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.109, no.7, pp.1 - 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 109
- Number
- 7
- Start Page
- 1
- End Page
- 4
- ISSN
- 0021-8979
- Abstract
- Using ab initio calculations, we obtained the surface phase diagram of a Fe/Pt(001) surface and the magnetic anisotropy energies of the equilibrium Fe/Pt(001) surface structures. From the obtained surface phase diagram, Fe-rich L1(2) B and perpendicular L1(0) B were found to be the most stable Fe-Pt surface phases. The calculated magnetic anisotropy energies of the Fe-rich L1(2) B and perpendicular L1(0) B Fe/Pt(001) structures revealed that the magnetic easy axes of the surface structures prefer to align in the [001] direction. Through systematic calculations, we showed that the magnetic anisotropy reduction in Fe/Pt(001) originates from the changed electron filling in the 3d(z2) orbital of Fe atoms due to the surface formation.
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Related Researcher
- Chung, Yong Chae
- COLLEGE OF ENGINEERING (SCHOOL OF MATERIALS SCIENCE AND ENGINEERING)