Electron concentration dependent magnetization and magnetic anisotropy in ZnO:Mn thin films

Electron concentration dependent magnetization and magnetic anisotropy in ZnO:Mn thin films

Well-above room temperature and electron concentration dependent ferromagnetism was observed in n -type ZnO:Mn films, indicating long-range ferromagnetic order. Magnetic anisotropy was also observed in these ZnO:Mn films, which is another indication for intrinsic ferromagnetism. The electron-mediate...

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Veröffentlicht in:Applied physics letters 2008-01, Vol.92 (4), p.042111-042111-3
Hauptverfasser: Yang, Z., Liu, J. L., Biasini, M., Beyermann, W. P.
Format: Artikel
Sprache:eng
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Zusammenfassung:Well-above room temperature and electron concentration dependent ferromagnetism was observed in n -type ZnO:Mn films, indicating long-range ferromagnetic order. Magnetic anisotropy was also observed in these ZnO:Mn films, which is another indication for intrinsic ferromagnetism. The electron-mediated ferromagnetism in n -type ZnO:Mn contradicts the existing theory that the magnetic exchange in ZnO:Mn materials is mediated by holes.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2838753