Origin of room temperature ferromagnetism in ZnO:Cu films

T. S. Herng; Shu Ping Lau; Siu Fung Yu; H. Y. Yang; X. H. Ji; J. S. Chen; N. Yasui; H. Inaba

doi:10.1063/1.2190711

Origin of room temperature ferromagnetism in ZnO:Cu films

T. S. Herng, Shu Ping Lau, Siu Fung Yu, H. Y. Yang, X. H. Ji, J. S. Chen, N. Yasui, H. Inaba

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

129 Citations (Scopus)

Abstract

Copper-doped ZnO (ZnO:Cu) films were prepared on silicon substrates by filtered cathodic vacuum arc technique at room temperature using a Zn target containing 5 at. % of Cu. Room temperature ferromagnetism was observed in the ZnO:Cu films with saturation magnetization of 0.037 μB Cu atom. The origin of the ferromagnetism in ZnO:Cu was mainly due to Cu ions substituted into the ZnO lattice. X-ray diffraction, x-ray photoelectron spectroscopy, and transmission electron microscopy revealed that no ferromagnetic-related secondary phase could be detected in ZnO:Cu.

Original language	English
Article number	086101
Journal	Journal of Applied Physics
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.2190711
Publication status	Published - 25 May 2006
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2190711

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title = "Origin of room temperature ferromagnetism in ZnO:Cu films",

abstract = "Copper-doped ZnO (ZnO:Cu) films were prepared on silicon substrates by filtered cathodic vacuum arc technique at room temperature using a Zn target containing 5 at. % of Cu. Room temperature ferromagnetism was observed in the ZnO:Cu films with saturation magnetization of 0.037 μB Cu atom. The origin of the ferromagnetism in ZnO:Cu was mainly due to Cu ions substituted into the ZnO lattice. X-ray diffraction, x-ray photoelectron spectroscopy, and transmission electron microscopy revealed that no ferromagnetic-related secondary phase could be detected in ZnO:Cu.",

author = "Herng, {T. S.} and Lau, {Shu Ping} and Yu, {Siu Fung} and Yang, {H. Y.} and Ji, {X. H.} and Chen, {J. S.} and N. Yasui and H. Inaba",

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AU - Herng, T. S.

AU - Lau, Shu Ping

AU - Yu, Siu Fung

AU - Yang, H. Y.

AU - Ji, X. H.

AU - Chen, J. S.

AU - Yasui, N.

AU - Inaba, H.

PY - 2006/5/25

Y1 - 2006/5/25

N2 - Copper-doped ZnO (ZnO:Cu) films were prepared on silicon substrates by filtered cathodic vacuum arc technique at room temperature using a Zn target containing 5 at. % of Cu. Room temperature ferromagnetism was observed in the ZnO:Cu films with saturation magnetization of 0.037 μB Cu atom. The origin of the ferromagnetism in ZnO:Cu was mainly due to Cu ions substituted into the ZnO lattice. X-ray diffraction, x-ray photoelectron spectroscopy, and transmission electron microscopy revealed that no ferromagnetic-related secondary phase could be detected in ZnO:Cu.

AB - Copper-doped ZnO (ZnO:Cu) films were prepared on silicon substrates by filtered cathodic vacuum arc technique at room temperature using a Zn target containing 5 at. % of Cu. Room temperature ferromagnetism was observed in the ZnO:Cu films with saturation magnetization of 0.037 μB Cu atom. The origin of the ferromagnetism in ZnO:Cu was mainly due to Cu ions substituted into the ZnO lattice. X-ray diffraction, x-ray photoelectron spectroscopy, and transmission electron microscopy revealed that no ferromagnetic-related secondary phase could be detected in ZnO:Cu.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

M1 - 086101

ER -

Origin of room temperature ferromagnetism in ZnO:Cu films

Abstract

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