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题名: Argon ion irradiation induced phase transition and room temperature ferromagnetism in the CuO thin film
作者: Shi, SP; Gao, DQ(高大强); Xia, BR; Xue, DS(薛德胜)
收录类别: SCIE ; EI
出版日期: 2016-02-10
刊名: JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷号: 49, 期号:5
英文摘要: We have deposited a copper oxide (CuO) thin film using a magnetron sputtering system by modulating rate of oxygen flow, and we found that the phase of cuprous oxide (Cu2O) appeared after irradiation by argon ions. Magnetic measurement results indicate that the thin film exhibits room temperature ferromagnetism after irradiation, while the virgin CuO thin film is diamagnetic. Vacancies and interstitial would appear in the lattice during irradiation and phase transition, which will originate in the local magnetic moment. In combination with the analyses of Raman spectra, we believe that the ferromagnetism of the film may originate from Cu vacancies, which provides an approach in investigating the mechanism of magnetism in the diluted magnetic semiconductor.
关键词: room temperature ferromagnetism ; argon ion irradiation ; phase transition ; vacancies
作者部门: [Shi, Shoupeng ; Gao, Daqiang ; Xia, BaoRui ; Xue, Desheng] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
通讯作者: Gao, DQ (reprint author), Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China.
学科分类: Physics
文章类型: Article
所属项目编号: National Basic Research Program of China [2012CB933101] ; National Natural Science Fundation of China [51371093, 51202101, 11474137, 21201092, 11274147, 11034004] ; Program for Changjiang Scholars and Innovative Research Team in University [IRT1251] ; Specialized Research Fund for the Doctoral Program of Higher Education [20120211120005]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 长江学者和创新团队发展计划 ; 高等学校博士学科点专项科研基金
项目资助者: NSFC ; MOST ; MOE
语种: 英语
DOI: 10.1088/0022-3727/49/5/055003
ISSN号: 0022-3727
WOS记录号: WOS:000368944100007
EI记录号: 20160701911322
IR记录号: WOS:000368944100007
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/181493
Appears in Collections:物理科学与技术学院_期刊论文

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Recommended Citation:
Shi, SP,Gao, DQ,Xia, BR,et al. Argon ion irradiation induced phase transition and room temperature ferromagnetism in the CuO thin film[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2016,49(5).
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