Ferromagnetism in Mn and Cr doped GaN by thermal diffusion

X. M. Cai; A. B. Djurišić; M. H. Xie; H. Liu; X. X. Zhang; J. J. Zhu; H. Yang

doi:10.1016/j.mseb.2004.12.008

Ferromagnetism in Mn and Cr doped GaN by thermal diffusion

X. M. Cai^*, A. B. Djurišić, M. H. Xie, H. Liu, X. X. Zhang, J. J. Zhu, H. Yang

^*Corresponding author for this work

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

20 Scopus citations

Abstract

Doping of magnetic element Mn and Cr in GaN was achieved by thermal diffusion. The conductivity of the samples, which were all n-type, did not change significantly after the diffusion doping. X-ray diffraction measurements revealed no secondary phase in the samples. Experiments using superconducting quantum interference device (SQUID) showed that the samples were ferromagnetic at 5 and 300 K, implying the Curie temperature to be around or over 300 K, despite their n-type conductivity.

Original language	English (US)
Pages (from-to)	292-295
Number of pages	4
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	117
Issue number	3
DOIs	https://doi.org/10.1016/j.mseb.2004.12.008
State	Published - Mar 25 2005
Externally published	Yes

Bibliographical note

Funding Information:
We are grateful to Dr. Y.G. Cao and Prof. Ning for XRD measurements of the samples. X.X. Zhang would like to thank the support by HK RGC.

Keywords

Cr
Ferromagnetism
GaN
Mn
Thermal doping

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.mseb.2004.12.008

Cite this

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title = "Ferromagnetism in Mn and Cr doped GaN by thermal diffusion",

abstract = "Doping of magnetic element Mn and Cr in GaN was achieved by thermal diffusion. The conductivity of the samples, which were all n-type, did not change significantly after the diffusion doping. X-ray diffraction measurements revealed no secondary phase in the samples. Experiments using superconducting quantum interference device (SQUID) showed that the samples were ferromagnetic at 5 and 300 K, implying the Curie temperature to be around or over 300 K, despite their n-type conductivity.",

keywords = "Cr, Ferromagnetism, GaN, Mn, Thermal doping",

author = "Cai, {X. M.} and Djuri{\v s}i{\'c}, {A. B.} and Xie, {M. H.} and H. Liu and Zhang, {X. X.} and Zhu, {J. J.} and H. Yang",

note = "Funding Information: We are grateful to Dr. Y.G. Cao and Prof. Ning for XRD measurements of the samples. X.X. Zhang would like to thank the support by HK RGC.",

year = "2005",

month = mar,

day = "25",

doi = "10.1016/j.mseb.2004.12.008",

language = "English (US)",

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TY - JOUR

T1 - Ferromagnetism in Mn and Cr doped GaN by thermal diffusion

AU - Cai, X. M.

AU - Djurišić, A. B.

AU - Xie, M. H.

AU - Liu, H.

AU - Zhang, X. X.

AU - Zhu, J. J.

AU - Yang, H.

N1 - Funding Information: We are grateful to Dr. Y.G. Cao and Prof. Ning for XRD measurements of the samples. X.X. Zhang would like to thank the support by HK RGC.

PY - 2005/3/25

Y1 - 2005/3/25

N2 - Doping of magnetic element Mn and Cr in GaN was achieved by thermal diffusion. The conductivity of the samples, which were all n-type, did not change significantly after the diffusion doping. X-ray diffraction measurements revealed no secondary phase in the samples. Experiments using superconducting quantum interference device (SQUID) showed that the samples were ferromagnetic at 5 and 300 K, implying the Curie temperature to be around or over 300 K, despite their n-type conductivity.

AB - Doping of magnetic element Mn and Cr in GaN was achieved by thermal diffusion. The conductivity of the samples, which were all n-type, did not change significantly after the diffusion doping. X-ray diffraction measurements revealed no secondary phase in the samples. Experiments using superconducting quantum interference device (SQUID) showed that the samples were ferromagnetic at 5 and 300 K, implying the Curie temperature to be around or over 300 K, despite their n-type conductivity.

KW - Cr

KW - Ferromagnetism

KW - GaN

KW - Mn

KW - Thermal doping

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M3 - Article

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SN - 0921-5107

VL - 117

SP - 292

EP - 295

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

IS - 3

ER -

Ferromagnetism in Mn and Cr doped GaN by thermal diffusion

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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