The dual effects of Al-doping on the ferromagnetism of Zn0.98–yEr0.02AlyO thin films | Zendy

Hongming Chen | Zendy; XueChao Liu | Zendy; Shi-Yi Zhuo | Zendy; Ze Xiong | Zendy; Ren-Wei Zhou | Zendy; Jianhua Yang | Zendy; ErWei Shi | Zendy

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The dual effects of Al-doping on the ferromagnetism of Zn0.98–yEr0.02AlyO thin films

Author(s) -

Hongming Chen,

XueChao Liu,

Shi-Yi Zhuo,

Ze Xiong,

Ren-Wei Zhou,

Jianhua Yang,

ErWei Shi

Publication year - 2013

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4819455

Subject(s) - ferromagnetism , doping , thin film , materials science , condensed matter physics , scattering , inductively coupled plasma , magnetization , analytical chemistry (journal) , chemistry , plasma , nanotechnology , magnetic field , optoelectronics , physics , optics , chromatography , quantum mechanics

Zn0.98–yEr0.02AlyO (0 ≤ y ≤ 0.04) thin films have been prepared by inductively coupled plasma enhanced physical vapor deposition method. It is found that Er3+ substitutes Zn2+ in ZnO lattice without forming any magnetic secondary phase. Al-doping has dual effects on the electron transport and magnetic properties of Er-doped ZnO films, wherein AlZn and Ali play different roles. When 0 ≤ y ≤ 0.02, the dominant AlZn increases and induces both carrier concentration and saturation magnetization (Ms) increasing. When 0.02 < y ≤ 0.04, Ali becomes main defect and enhances the probability of electron scattering, thus reduces the Ms

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