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

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

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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)",

volume = "117",

pages = "292--295",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

issn = "0921-5107",

publisher = "Elsevier",

number = "3",

}

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

UR - http://www.scopus.com/inward/record.url?scp=14044271431&partnerID=8YFLogxK

U2 - 10.1016/j.mseb.2004.12.008

DO - 10.1016/j.mseb.2004.12.008

M3 - Article

AN - SCOPUS:14044271431

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

Keywords

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