Room-temperature ferromagnetism in co-sputtered Zn1-xCrxO films with low Cr content

Y. M. Hu; C. W. Hsu; C. Y. Wang; S. S. Lee; S. J. Wang; T. C. Han; Wei-Yang Chou

doi:10.1016/j.scriptamat.2009.08.018

Room-temperature ferromagnetism in co-sputtered Zn_1-xCr_xO films with low Cr content

Y. M. Hu, C. W. Hsu, C. Y. Wang, S. S. Lee, S. J. Wang, T. C. Han, Wei-Yang Chou

Department of Photonics

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

20 Citations (Scopus)

Abstract

Zn_1-xCr_xO films with low Cr content were prepared using the co-sputtering method. With increasing x, an increase in the amount of the Cr₂O₃ phase was found, which was accompanied by a decrease in the saturated magnetization in Zn_1-xCr_xO films. The normalized photoluminescence spectra clearly demonstrated that the emission due to V_Zn decreases monotonically in intensity with increasing x. We suggest that the Cr ion substitution is necessary for establishing ferromagnetism in ZnO films containing V_Zn.

Original language	English
Pages (from-to)	1028-1031
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2009.08.018
Publication status	Published - 2009 Dec 1

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2009.08.018

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title = "Room-temperature ferromagnetism in co-sputtered Zn1-xCrxO films with low Cr content",

abstract = "Zn1-xCrxO films with low Cr content were prepared using the co-sputtering method. With increasing x, an increase in the amount of the Cr2O3 phase was found, which was accompanied by a decrease in the saturated magnetization in Zn1-xCrxO films. The normalized photoluminescence spectra clearly demonstrated that the emission due to VZn decreases monotonically in intensity with increasing x. We suggest that the Cr ion substitution is necessary for establishing ferromagnetism in ZnO films containing VZn.",

author = "Hu, {Y. M.} and Hsu, {C. W.} and Wang, {C. Y.} and Lee, {S. S.} and Wang, {S. J.} and Han, {T. C.} and Wei-Yang Chou",

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TY - JOUR

T1 - Room-temperature ferromagnetism in co-sputtered Zn1-xCrxO films with low Cr content

AU - Hu, Y. M.

AU - Hsu, C. W.

AU - Wang, C. Y.

AU - Lee, S. S.

AU - Wang, S. J.

AU - Han, T. C.

AU - Chou, Wei-Yang

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Zn1-xCrxO films with low Cr content were prepared using the co-sputtering method. With increasing x, an increase in the amount of the Cr2O3 phase was found, which was accompanied by a decrease in the saturated magnetization in Zn1-xCrxO films. The normalized photoluminescence spectra clearly demonstrated that the emission due to VZn decreases monotonically in intensity with increasing x. We suggest that the Cr ion substitution is necessary for establishing ferromagnetism in ZnO films containing VZn.

AB - Zn1-xCrxO films with low Cr content were prepared using the co-sputtering method. With increasing x, an increase in the amount of the Cr2O3 phase was found, which was accompanied by a decrease in the saturated magnetization in Zn1-xCrxO films. The normalized photoluminescence spectra clearly demonstrated that the emission due to VZn decreases monotonically in intensity with increasing x. We suggest that the Cr ion substitution is necessary for establishing ferromagnetism in ZnO films containing VZn.

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EP - 1031

JO - Scripta Materialia

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