Study on spin polarization of non-magnetic atom in diluted magnetic semiconductor: The case of Al-doped 4H-SiC

Ming He; X. He; L. Lin; B. Song; Z. H. Zhang

doi:10.1016/j.ssc.2014.08.005

Study on spin polarization of non-magnetic atom in diluted magnetic semiconductor: The case of Al-doped 4H-SiC

Ming He
, X. He
, L. Lin
, B. Song
, Z. H. Zhang^*

^*Corresponding author for this work

School of Astronautics

Dalian Jiaotong University
Harbin Normal University
Chengdu Fine Optical Engineering Research Center

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

12 Scopus citations

Abstract

Determining the atomic origin of magnetism in non-magnetic elements doped dilute magnetic semiconductors (DMS) is a key issue to understand the room temperature ferromagnetism. Here, using electron magnetic circular dichroism (EMCD), an element-selectivity and high spatial resolution technique, we provide unambiguous experimental evidence: spin polarization of carbon atoms contributes to the local magnetic moments of Al-doped 4H-SiC DMS. The result is further confirmed by first-principle calculations.

Original language	English
Pages (from-to)	44-48
Number of pages	5
Journal	Solid State Communications
Volume	197
DOIs	https://doi.org/10.1016/j.ssc.2014.08.005
State	Published - Nov 2014

Keywords

A. Diluted magnetic semiconductor
D. Magnetic moments
E. Electron magnetic circular dichroism (EMCD)
E. First-principle theory

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10.1016/j.ssc.2014.08.005

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title = "Study on spin polarization of non-magnetic atom in diluted magnetic semiconductor: The case of Al-doped 4H-SiC",

abstract = "Determining the atomic origin of magnetism in non-magnetic elements doped dilute magnetic semiconductors (DMS) is a key issue to understand the room temperature ferromagnetism. Here, using electron magnetic circular dichroism (EMCD), an element-selectivity and high spatial resolution technique, we provide unambiguous experimental evidence: spin polarization of carbon atoms contributes to the local magnetic moments of Al-doped 4H-SiC DMS. The result is further confirmed by first-principle calculations.",

keywords = "A. Diluted magnetic semiconductor, D. Magnetic moments, E. Electron magnetic circular dichroism (EMCD), E. First-principle theory",

author = "Ming He and X. He and L. Lin and B. Song and Zhang, \{Z. H.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

year = "2014",

month = nov,

doi = "10.1016/j.ssc.2014.08.005",

language = "英语",

volume = "197",

pages = "44--48",

journal = "Solid State Communications",

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TY - JOUR

T1 - Study on spin polarization of non-magnetic atom in diluted magnetic semiconductor

T2 - The case of Al-doped 4H-SiC

AU - He, Ming

AU - He, X.

AU - Lin, L.

AU - Song, B.

AU - Zhang, Z. H.

PY - 2014/11

Y1 - 2014/11

N2 - Determining the atomic origin of magnetism in non-magnetic elements doped dilute magnetic semiconductors (DMS) is a key issue to understand the room temperature ferromagnetism. Here, using electron magnetic circular dichroism (EMCD), an element-selectivity and high spatial resolution technique, we provide unambiguous experimental evidence: spin polarization of carbon atoms contributes to the local magnetic moments of Al-doped 4H-SiC DMS. The result is further confirmed by first-principle calculations.

AB - Determining the atomic origin of magnetism in non-magnetic elements doped dilute magnetic semiconductors (DMS) is a key issue to understand the room temperature ferromagnetism. Here, using electron magnetic circular dichroism (EMCD), an element-selectivity and high spatial resolution technique, we provide unambiguous experimental evidence: spin polarization of carbon atoms contributes to the local magnetic moments of Al-doped 4H-SiC DMS. The result is further confirmed by first-principle calculations.

KW - A. Diluted magnetic semiconductor

KW - D. Magnetic moments

KW - E. Electron magnetic circular dichroism (EMCD)

KW - E. First-principle theory

UR - https://www.scopus.com/pages/publications/84922240040

U2 - 10.1016/j.ssc.2014.08.005

DO - 10.1016/j.ssc.2014.08.005

M3 - 文章

AN - SCOPUS:84922240040

SN - 0038-1098

VL - 197

SP - 44

EP - 48

JO - Solid State Communications

JF - Solid State Communications

ER -

Study on spin polarization of non-magnetic atom in diluted magnetic semiconductor: The case of Al-doped 4H-SiC

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Keywords

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