Room temperature ferromagnetism of Mn-doped SnO                         2                          thin films fabricated by sol-gel method

Yuhua Xiao; Shihui Ge; Li Xi; Yalu Zuo; Xueyun Zhou; Bangmin Zhang; Li Zhang; Chengxian Li; Xiufeng Han; Zhenchao Wen

doi:10.1016/j.apsusc.2008.06.026

Room temperature ferromagnetism of Mn-doped SnO ₂ thin films fabricated by sol-gel method

Yuhua Xiao, Shihui Ge, Li Xi, Yalu Zuo, Xueyun Zhou, Bangmin Zhang, Li Zhang, Chengxian Li, Xiufeng Han, Zhenchao Wen

Center for Spintronics Research Network (CSRN)

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

Sn _1-x Mn _x O ₂ (x ≤ 0.11) thin films spin-coated on Si (1 1 1) substrate were fabricated by sol-gel method. X-ray diffraction revealed that single-phase rutile polycrystalline structure was obtained for x up to about 0.078. Evolution of the lattice parameters and X-ray photoelectron spectroscopy studies confirmed the incorporation of Mn ³⁺ cations into rutile SnO ₂ lattice. Magnetic measurements revealed that all Sn _1-x Mn _x O ₂ thin films exhibit ferromagnetism at room temperature, which is identified as an intrinsic characteristic. Magnetization data showed that the average magnetic moment per Mn atom decreased and the coercivity increases with increasing Mn content. The origin of room temperature ferromagnetism can be understood in terms of the percolation of the bound magnetic polaron. Our experimental results prove that the sol-gel method is an effective method for fabrication of transition metal doped SnO ₂ nanostructures with room temperature ferromagnetism by chemical synthesis.

Original language	English
Pages (from-to)	7459-7463
Number of pages	5
Journal	Applied Surface Science
Volume	254
Issue number	22
DOIs	https://doi.org/10.1016/j.apsusc.2008.06.026
Publication status	Published - 2008 Sep 15

Keywords

Mn-doped SnO film
Room temperature ferromagnetic semiconductor
Sol-gel method
The percolation of bound magnetic polaron

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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Xiao, Y., Ge, S., Xi, L., Zuo, Y., Zhou, X., Zhang, B., Zhang, L., Li, C., Han, X., & Wen, Z. (2008). Room temperature ferromagnetism of Mn-doped SnO ₂ thin films fabricated by sol-gel method Applied Surface Science, 254(22), 7459-7463. https://doi.org/10.1016/j.apsusc.2008.06.026

Room temperature ferromagnetism of Mn-doped SnO ₂ thin films fabricated by sol-gel method . / Xiao, Yuhua; Ge, Shihui; Xi, Li; Zuo, Yalu; Zhou, Xueyun; Zhang, Bangmin; Zhang, Li; Li, Chengxian; Han, Xiufeng; Wen, Zhenchao.

In: Applied Surface Science, Vol. 254, No. 22, 15.09.2008, p. 7459-7463.

Research output: Contribution to journal › Article › peer-review

Xiao, Y, Ge, S, Xi, L, Zuo, Y, Zhou, X, Zhang, B, Zhang, L, Li, C, Han, X & Wen, Z 2008, ' Room temperature ferromagnetism of Mn-doped SnO ₂ thin films fabricated by sol-gel method ', Applied Surface Science, vol. 254, no. 22, pp. 7459-7463. https://doi.org/10.1016/j.apsusc.2008.06.026

Xiao, Yuhua ; Ge, Shihui ; Xi, Li ; Zuo, Yalu ; Zhou, Xueyun ; Zhang, Bangmin ; Zhang, Li ; Li, Chengxian ; Han, Xiufeng ; Wen, Zhenchao. / Room temperature ferromagnetism of Mn-doped SnO ₂ thin films fabricated by sol-gel method In: Applied Surface Science. 2008 ; Vol. 254, No. 22. pp. 7459-7463.

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abstract = " Sn 1-x Mn x O 2 (x ≤ 0.11) thin films spin-coated on Si (1 1 1) substrate were fabricated by sol-gel method. X-ray diffraction revealed that single-phase rutile polycrystalline structure was obtained for x up to about 0.078. Evolution of the lattice parameters and X-ray photoelectron spectroscopy studies confirmed the incorporation of Mn 3+ cations into rutile SnO 2 lattice. Magnetic measurements revealed that all Sn 1-x Mn x O 2 thin films exhibit ferromagnetism at room temperature, which is identified as an intrinsic characteristic. Magnetization data showed that the average magnetic moment per Mn atom decreased and the coercivity increases with increasing Mn content. The origin of room temperature ferromagnetism can be understood in terms of the percolation of the bound magnetic polaron. Our experimental results prove that the sol-gel method is an effective method for fabrication of transition metal doped SnO 2 nanostructures with room temperature ferromagnetism by chemical synthesis.",

keywords = "Mn-doped SnO film, Room temperature ferromagnetic semiconductor, Sol-gel method, The percolation of bound magnetic polaron",

author = "Yuhua Xiao and Shihui Ge and Li Xi and Yalu Zuo and Xueyun Zhou and Bangmin Zhang and Li Zhang and Chengxian Li and Xiufeng Han and Zhenchao Wen",

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AU - Ge, Shihui

AU - Xi, Li

AU - Zuo, Yalu

AU - Zhou, Xueyun

AU - Zhang, Bangmin

AU - Zhang, Li

AU - Li, Chengxian

AU - Han, Xiufeng

AU - Wen, Zhenchao

PY - 2008/9/15

Y1 - 2008/9/15

N2 - Sn 1-x Mn x O 2 (x ≤ 0.11) thin films spin-coated on Si (1 1 1) substrate were fabricated by sol-gel method. X-ray diffraction revealed that single-phase rutile polycrystalline structure was obtained for x up to about 0.078. Evolution of the lattice parameters and X-ray photoelectron spectroscopy studies confirmed the incorporation of Mn 3+ cations into rutile SnO 2 lattice. Magnetic measurements revealed that all Sn 1-x Mn x O 2 thin films exhibit ferromagnetism at room temperature, which is identified as an intrinsic characteristic. Magnetization data showed that the average magnetic moment per Mn atom decreased and the coercivity increases with increasing Mn content. The origin of room temperature ferromagnetism can be understood in terms of the percolation of the bound magnetic polaron. Our experimental results prove that the sol-gel method is an effective method for fabrication of transition metal doped SnO 2 nanostructures with room temperature ferromagnetism by chemical synthesis.

AB - Sn 1-x Mn x O 2 (x ≤ 0.11) thin films spin-coated on Si (1 1 1) substrate were fabricated by sol-gel method. X-ray diffraction revealed that single-phase rutile polycrystalline structure was obtained for x up to about 0.078. Evolution of the lattice parameters and X-ray photoelectron spectroscopy studies confirmed the incorporation of Mn 3+ cations into rutile SnO 2 lattice. Magnetic measurements revealed that all Sn 1-x Mn x O 2 thin films exhibit ferromagnetism at room temperature, which is identified as an intrinsic characteristic. Magnetization data showed that the average magnetic moment per Mn atom decreased and the coercivity increases with increasing Mn content. The origin of room temperature ferromagnetism can be understood in terms of the percolation of the bound magnetic polaron. Our experimental results prove that the sol-gel method is an effective method for fabrication of transition metal doped SnO 2 nanostructures with room temperature ferromagnetism by chemical synthesis.

KW - Mn-doped SnO film

KW - Room temperature ferromagnetic semiconductor

KW - Sol-gel method

KW - The percolation of bound magnetic polaron

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