Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4948692
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Funding
- Specially Promoted Research, the Project for Developing Innovation Systems of MEXT
- Spintronics Research Network of Japan (Spin-RNJ)
- JSPS [P15362]
- Yazaki Memorial Foundation for Science and Technology
- Iketani Science and Technology Foundation
- Toray Science Foundation
- JSPS Fellowship for Young Scientists (KAKENHI Grant) [257388]
- Program for Leading Graduate Schools (MERIT)
- Grants-in-Aid for Scientific Research [16K14224, 15F15362, 23000010, 15H03988, 16H02095] Funding Source: KAKEN
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We show high-temperature ferromagnetism in heavily Fe-doped ferromagnetic semiconductor (Ga1-x,Fe-x)Sb (x = 23% and 25%) thin films grown by low-temperature molecular beam epitaxy. Magnetic circular dichroism spectroscopy and anomalous Hall effect measurements indicate intrinsic ferromagnetism of these samples. The Curie temperature reaches 300K and 340K for x = 23% and 25%, respectively, which are the highest values reported so far in intrinsic III-V ferromagnetic semiconductors. Published by AIP Publishing.
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