Six-fold in-plane magnetic anisotropy in Co-implanted ZnO (0001)

作者: Numan Akdoğan , Bulat Rameev , Sümeyra Güler , Osman Öztürk , Bekir Aktaş

DOI: 10.1063/1.3223583

关键词: Magnetic semiconductorCobaltCondensed matter physicsDopingAnisotropyFerromagnetic resonanceFerromagnetismMaterials scienceFilm planeMagnetic anisotropy

摘要: Magnetic anisotropies of Co-implanted ZnO (0001) films grown on single-crystalline Al2O3 (112¯0) substrates have been studied by ferromagnetic resonance (FMR) technique for different cobalt implantation doses. The FMR data show that the easy and hard axes a periodicity 60° in film plane, agreement with hexagonal structure films. This six-fold in-plane magnetic anisotropy, which is observed first time ZnO-based diluted semiconductors, attributed to substitution Zn sites structure, clear indication long range ordering between substitutional ions

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