Voltage-Induced Changes in Magnetism of FeCo/BaTiO<sub>3 </sub>Thin Films Studied by X-Ray Absorption Spectroscopy
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- Amemiya Kenta
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI)
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- Sakamaki Masako
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI)
Abstract
Voltage-induced changes in the magnetic properties of FeCo thin films grown on a BaTiO3 substrate are investigated by means of the X-ray magnetic circular dichroism (XMCD). The magnetization curves show different effects of the applied voltages depending on the Fe-Co compositions, which are ranging from Fe67Co33 to Fe25Co75. The XMCD spectra suggest that magnetization of the Fe50Co50 film at the saturation state are different between the positive and negative applied voltages, while those for other compositions have no detectable dependence on the applied voltage. The peculiar behavior for Fe50Co50 could be related to the abrupt change in the density of state at the Fermi level. [DOI: 10.1380/ejssnt.2015.465]
Journal
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- e-Journal of Surface Science and Nanotechnology
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e-Journal of Surface Science and Nanotechnology 13 (0), 465-468, 2015
The Japan Society of Vacuum and Surface Science
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Details 詳細情報について
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- CRID
- 1390001205185788544
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- NII Article ID
- 130005130300
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- ISSN
- 13480391
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed