Structure and magnetism of Fe thin films grown on Rh(001) studied by photoelectron spectroscopy
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概要
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Structural and magnetic properties of Fe thin films grown epitaxially on Rh(001) are studied by spin- and angle-resolved valence-band photoemission, Fe 2p3/2 photoelectron diffraction, and x-ray magnetic circular dichroism experiments. The valence-band structure shows characteristic features of a fcc high-spin state at 4 monolayers (ML) and those of ferromagnetic bulk bcc Fe at 8 ML. The structure of the Fe film reveals fct(001) compressed along the direction perpendicular to the surface in the low-coverage region and gradually changes to distorted bcc(110) as the film thickness increases. The magnetic moments increase as a function of the film thickness and reach the same value as in bulk bcc Fe above 6 ML. The Fe films show in-plane ferromagnetism above 2 ML, and the thickness dependence of the magnetic properties is discussed in connection with the characteristic growth mode.
- American Physical Societyの論文
- 2001-07-21
著者
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澤田 正博
広大放射光セ
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Kimura A
Univ. Tokyo Chiba
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Sawada M
Hiroshima Synchrotron Radiation Center Hiroshima University
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