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1 PublicationRoom temperature ferromagnetism in Sb doped ZnO
Luo, C.-Q.; Zhu, S.-C.; Xu, C.; Zhou, S.; Lame, C.-H.; Ling, F. C.-C.
Abstract
Using first-principle calculations, the magnetic properties of the monovacancies and the Sb-related defects including VZn, VO, SbZn, SbO, SbZn-VZn and SbZn-2VZn are studied. It is found that the isolated VZn with the charge state of 0 and −1 can contribute to ferromagnetism in ZnO material. The substitution of Sb on O sites (SbO0) also results in magnetic property. Moreover, the SbZn-2VZn complex is another defect having non-zero magnetic moment and energetically favors for the ferromagnetic state. The resultant density of states (DOS) and spin density distribution clearly show that the ferromagnetic interaction is majorly due to the O-p Zn-d and Sb-p states. To check this calculation, Sb-doped ZnO samples were grown by pulsed laser deposition with different Sb composition under P(O2) = 1.3 Pa. SQUID study showed that all of these samples are ferromagnetic at room temperature. The variation of the saturation magnetization against the Sb composition is discussed.
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Raw data, magnetization measurements for paper Room temperature ferromagnetism …
ROBIS: 32727 HZDR-primary research data are used by this (Id 32726) publication
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Journal of Magnetism and Magnetic Materials 529(2021), 167908
DOI: 10.1016/j.jmmm.2021.167908
Cited 2 times in Scopus
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