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Structure and magnetism of Zn 0.9Co 0.1O DMS films prepared by chemical solution deposition method

[Display omitted] ► All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. ► Oxygen vacancies, which can induce a donor state overlapping with d states of Co atoms, exist in the films. ► No Co clusters and second phases exit in the films. ► Ferromagnetism is... Full description

Journal Title: Applied Surface Science 2011, Vol.258(1), pp.64-67
Main Author: Yang, Jinghai
Other Authors: Cheng, Yan , Zhang, Yongjun , Wang, Yaxin , Liu, Yang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2011.08.006
Link: http://dx.doi.org/10.1016/j.apsusc.2011.08.006
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recordid: elsevier_sdoi_10_1016_j_apsusc_2011_08_006
title: Structure and magnetism of Zn 0.9Co 0.1O DMS films prepared by chemical solution deposition method
format: Article
creator:
  • Yang, Jinghai
  • Cheng, Yan
  • Zhang, Yongjun
  • Wang, Yaxin
  • Liu, Yang
subjects:
  • Oxygen Vacancy
  • Xanes
  • Efxas
  • Ferromagnetism
  • Oxygen Vacancy
  • Xanes
  • Efxas
  • Ferromagnetism
  • Engineering
ispartof: Applied Surface Science, 2011, Vol.258(1), pp.64-67
description: [Display omitted] ► All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. ► Oxygen vacancies, which can induce a donor state overlapping with d states of Co atoms, exist in the films. ► No Co clusters and second phases exit in the films. ► Ferromagnetism is intrinsic behavior which can be explained by the formation of bound magnetic polarons. The Zn 0.9Co 0.1O films are fabricated by chemical solution deposition method. All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. The analysis of X-ray near-edge absorption spectroscopy and X-ray photoelectron spectroscopy indicates that the valence of Co is +2, and there are oxygen vacancies in Zn 0.9Co 0.1O films annealed in Ar atmosphere. Extended X-ray absorption fine structure results reveal that Co 2+ ions have dissolved into ZnO and substituted for Zn 2+ ions. Magnetization...
language: eng
source:
identifier: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2011.08.006
fulltext: fulltext
issn:
  • 0169-4332
  • 01694332
  • 1873-5584
  • 18735584
url: Link


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subjectOxygen Vacancy ; Xanes ; Efxas ; Ferromagnetism ; Oxygen Vacancy ; Xanes ; Efxas ; Ferromagnetism ; Engineering
description[Display omitted] ► All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. ► Oxygen vacancies, which can induce a donor state overlapping with d states of Co atoms, exist in the films. ► No Co clusters and second phases exit in the films. ► Ferromagnetism is intrinsic behavior which can be explained by the formation of bound magnetic polarons. The Zn 0.9Co 0.1O films are fabricated by chemical solution deposition method. All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. The analysis of X-ray near-edge absorption spectroscopy and X-ray photoelectron spectroscopy indicates that the valence of Co is +2, and there are oxygen vacancies in Zn 0.9Co 0.1O films annealed in Ar atmosphere. Extended X-ray absorption fine structure results reveal that Co 2+ ions have dissolved into ZnO and substituted for Zn 2+ ions. Magnetization...
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description

[Display omitted]

► All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. ► Oxygen vacancies, which can induce a donor state overlapping with d states of Co atoms, exist in the films. ► No Co clusters and second phases exit in the films. ► Ferromagnetism is intrinsic behavior which can be explained by the formation of bound magnetic polarons.

The Zn 0.9Co 0.1O films are fabricated by chemical solution deposition method. All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. The analysis of X-ray near-edge absorption spectroscopy and X-ray photoelectron spectroscopy indicates that the valence of Co is +2, and there are oxygen vacancies in Zn 0.9Co 0.1O films annealed in Ar atmosphere. Extended X-ray absorption fine structure results reveal that Co 2+ ions have dissolved into ZnO and substituted for Zn 2+ ions. Magnetization...

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[Display omitted]

► All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. ► Oxygen vacancies, which can induce a donor state overlapping with d states of Co atoms, exist in the films. ► No Co clusters and second phases exit in the films. ► Ferromagnetism is intrinsic behavior which can be explained by the formation of bound magnetic polarons.

The Zn 0.9Co 0.1O films are fabricated by chemical solution deposition method. All the films have the ZnO wurtzite structure with a preferential orientation along the c-axis. The analysis of X-ray near-edge absorption spectroscopy and X-ray photoelectron spectroscopy indicates that the valence of Co is +2, and there are oxygen vacancies in Zn 0.9Co 0.1O films annealed in Ar atmosphere. Extended X-ray absorption fine structure results reveal that Co 2+ ions have dissolved into ZnO and substituted for Zn 2+ ions. Magnetization...

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