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	Spin–exciton interaction and related micro-photoluminescence spectra of znse:mn dms nanoribbon
	Hou,Lipeng1; Zhou,Weichang2; Zou,Bingsuo1; Zhang,Yu1; Han,Junbo3; Yang,Xinxin1; Gong,Zhihong1; Li,Jingbo4; Xie,Sishen5; Shi,Li-Jie1
刊名	Nanotechnology
	2017-02-01
卷号	28期号:10
关键词	Diluted magnetic semiconductor Spin–exciton interaction Micro-photoluminescence Sp-d hybridization Exciton magnetic polaron Spin–spin coupling Spin–orbital coupling
ISSN号	0957-4484
DOI	10.1088/1361-6528/aa58f1
英文摘要	Abstract for their spintronic applications the magnetic and optical properties of diluted magnetic semiconductors (dms) have been studied widely. however, the exact relationships between the magnetic interactions and optical emission behaviors in dms are not well understood yet due to their complicated microstructural and compositional characters from different growth and preparation techniques. manganese (mn) doped znse nanoribbons with high quality were obtained by using the chemical vapor deposition (cvd) method. successful mn ion doping in a single znse nanoribbon was identified by elemental energy-dispersive x-ray spectroscopy mapping and micro-photoluminescence (pl) mapping of intrinsic d–d optical transition at 580 nm, i.e. the transition of 4t1(4g)?→?6a1(6s),. besides the d–d transition pl peak at 580 nm, two other pl peaks related to mn ion aggregates in the znse lattice were detected at 664 nm and 530 nm, which were assigned to the d–d transitions from the mn2+–mn2+ pairs with ferromagnetic (fm) coupling and antiferromagnetic (afm) coupling, respectively. moreover, afm pair formation goes along with strong coupling with acoustic phonon or structural defects. these arguments were supported by temperature-dependent pl spectra, power-dependent pl lifetimes, and first-principle calculations. due to the ferromagnetic pair existence, an exciton magnetic polaron (emp) is formed and emits at 460 nm. defect existence favors the afm pair, which also can account for its giant enhancement of spin–orbital coupling and the spin hall effect observed in prl 97, 126603(2006) and prl 96, 196404(2006). these emission results of dms reflect their relation to local sp-d hybridization, spin–spin magnetic coupling, exciton–spin or phonon interactions covering structural relaxations. this kind of material can be used to study the exciton–spin interaction and may find applications in spin-related photonic devices besides spintronics.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0957-4484-28-10-AA58F1
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373511
专题	物理研究所
作者单位	1.Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing100081, People’s Republic of China 2.School of Physics, Hunan Normal University, Changsha, People’s Republic of China 3.Wuhan National High Magnetic Field Center, School of physics, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China 4.School of MSE, Guangdong University of Technology, Guangzhou 510006, People’s Republic of China 5.Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
推荐引用方式 GB/T 7714	Hou,Lipeng,Zhou,Weichang,Zou,Bingsuo,et al. Spin–exciton interaction and related micro-photoluminescence spectra of znse:mn dms nanoribbon[J]. Nanotechnology,2017,28(10).
APA	Hou,Lipeng.,Zhou,Weichang.,Zou,Bingsuo.,Zhang,Yu.,Han,Junbo.,...&Shi,Li-Jie.(2017).Spin–exciton interaction and related micro-photoluminescence spectra of znse:mn dms nanoribbon.Nanotechnology,28(10).
MLA	Hou,Lipeng,et al."Spin–exciton interaction and related micro-photoluminescence spectra of znse:mn dms nanoribbon".Nanotechnology 28.10(2017).

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