Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111)

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	Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111)
	West, D ; Sun, YY ; Zhang, SB ; Zhang, T ; Ma, XC ; Cheng, P ; Zhang, YY ; Chen, X ; Jia, JF ; Xue, QK
刊名	PHYSICAL REVIEW B
	2012
卷号	85 期号:8
关键词	AUGMENTED-WAVE METHOD SINGLE DIRAC CONE SADDLE-POINTS STATES
ISSN号	1098-0121
通讯作者	West, D: Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
中文摘要	Magnetic impurities are crucial for probing spin-polarized topological surface states. Scanning tunneling microscopy (STM) studies of Fe on the Bi2Te3(111) surface are preformed and unveil distinct impurity structures of unknown origin which exhibit temperature-dependent characteristics. Using density functional theory with spin-orbit coupling, we show that Fe prefers highly coordinated subsurface configurations. By comparing simulated STM images we can explain the experimental results of both low-temperature deposition, in which Fe exists in metastable states of which only the transition-metal Bi split interstitial is STM visible, and after room-temperature annealing, in which iron forms substitutional Fe-Bi.
收录类别	SCI
资助信息	Department of Energy [DE-SC0002623]; CMSN; National Science Foundation; Ministry of Science and Technology of China
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39586]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	West, D,Sun, YY,Zhang, SB,et al. Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111)[J]. PHYSICAL REVIEW B,2012,85(8).
APA	West, D.,Sun, YY.,Zhang, SB.,Zhang, T.,Ma, XC.,...&Xue, QK.(2012).Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111).PHYSICAL REVIEW B,85(8).
MLA	West, D,et al."Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111)".PHYSICAL REVIEW B 85.8(2012).