CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Localized defects closely related with the magnetism of graphite induced by C-12(+) ion implantation
Yang, Xin-Mei; He, Zhou-Tong(贺周同); Li, Wei-Feng; Xia, Hui-Hao(夏汇浩); Song, You; Zhou, Xing-Tai(周兴泰); Liu, Xiang-Dong; Zhao, Ming-Wen; Wang, Tian-Wei; Hou, Ke-Yu
2011
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume109Issue:8
AbstractThe magnetism of highly oriented pyrolytic graphite (HOPG) induced by 70 keV C-12(+) ion implantation was investigated by using electron spin resonance (ESR) and theoretical simulations of the electronic structure of defective graphite using spin-polarized density functional theory. The results indicate that defects produced by C-12(+) ion implantation can induce magnetic moments which are localized since a L1 line is observed at a fixed resonance field, independent of the angle between the field and the c axis of the HOPG sample. The angle and temperature dependence of the ESR spectra indicates that extrinsic carriers are induced in the implanted layer, and they may have an exchange interaction with local spins to produce a single asymmetric L1 line of the implanted sample. The consistent results given by the ESR spectra and the theoretical simulations of the electronic structure of defective graphite provide a clear explanation for the magnetic order in C-12(+) ion-implanted HOPG. The defects produced by the implantation induce local magnetic moments in the sample. Due to the interaction between the local spins and the extrinsic carriers, the local magnetic moments may be coupled through the mediation of itinerant carriers. (C)2011 American Institute of Physics. [doi:10.1063/1.3574638]
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000290047000125
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9541
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Yang, Xin-Mei,He, Zhou-Tong,Li, Wei-Feng,et al. Localized defects closely related with the magnetism of graphite induced by C-12(+) ion implantation[J]. JOURNAL OF APPLIED PHYSICS,2011,109(8).
APA Yang, Xin-Mei.,He, Zhou-Tong.,Li, Wei-Feng.,Xia, Hui-Hao.,Song, You.,...&Hou, Ke-Yu.(2011).Localized defects closely related with the magnetism of graphite induced by C-12(+) ion implantation.JOURNAL OF APPLIED PHYSICS,109(8).
MLA Yang, Xin-Mei,et al."Localized defects closely related with the magnetism of graphite induced by C-12(+) ion implantation".JOURNAL OF APPLIED PHYSICS 109.8(2011).
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