Room temperature ferromagnetism in Sb doped ZnO

Cai Qin Luo; Si Cong Zhu; Chi Xu; Shengqiang Zhou; Chi Hang Lam; Francis Chi Chung Ling

doi:10.1016/j.jmmm.2021.167908

Room temperature ferromagnetism in Sb doped ZnO

Cai Qin Luo, Si Cong Zhu, Chi Xu, Shengqiang Zhou, Chi Hang Lam, Francis Chi Chung Ling

Research output: Journal article publication › Journal article › Academic research › peer-review

2 Citations (Scopus)

Abstract

Using first-principle calculations, the magnetic properties of the monovacancies and the Sb-related defects including V_Zn, V_O, Sb_Zn, Sb_O, Sb_Zn-V_Zn and Sb_Zn-2V_Zn are studied. It is found that the isolated V_Zn with the charge state of 0 and −1 can contribute to ferromagnetism in ZnO material. The substitution of Sb on O sites (Sb_O⁰) also results in magnetic property. Moreover, the Sb_Zn-2V_Zn 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.

Original language	English
Article number	167908
Journal	Journal of Magnetism and Magnetic Materials
Volume	529
DOIs	https://doi.org/10.1016/j.jmmm.2021.167908
Publication status	Published - 1 Jul 2021

Keywords

Defects
Ferromagnetism
Sb-doped ZnO
SQUID

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2021.167908

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title = "Room temperature ferromagnetism in Sb doped ZnO",

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.",

keywords = "Defects, Ferromagnetism, Sb-doped ZnO, SQUID",

author = "Luo, {Cai Qin} and Zhu, {Si Cong} and Chi Xu and Shengqiang Zhou and Lam, {Chi Hang} and Ling, {Francis Chi Chung}",

note = "Funding Information: This work was supported in part by the MSU Research foundation, Michigan State University, East Lansing. We wish to thank E. Shields, Department of Crop and Soil Science, for the elemental analysis, D. R. Romsos for providing animal space for PER evaluation, and L. G. Harmon and M. T. Yokoyama for reviewing the manuscript. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

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doi = "10.1016/j.jmmm.2021.167908",

language = "English",

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TY - JOUR

T1 - Room temperature ferromagnetism in Sb doped ZnO

AU - Luo, Cai Qin

AU - Zhu, Si Cong

AU - Xu, Chi

AU - Zhou, Shengqiang

AU - Lam, Chi Hang

AU - Ling, Francis Chi Chung

N1 - Funding Information: This work was supported in part by the MSU Research foundation, Michigan State University, East Lansing. We wish to thank E. Shields, Department of Crop and Soil Science, for the elemental analysis, D. R. Romsos for providing animal space for PER evaluation, and L. G. Harmon and M. T. Yokoyama for reviewing the manuscript. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/7/1

Y1 - 2021/7/1

N2 - 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.

AB - 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.

KW - Defects

KW - Ferromagnetism

KW - Sb-doped ZnO

KW - SQUID

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DO - 10.1016/j.jmmm.2021.167908

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AN - SCOPUS:85102564087

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VL - 529

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

M1 - 167908

ER -

Room temperature ferromagnetism in Sb doped ZnO

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Keywords

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