中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Landau Quantization of Topological Surface States in Bi2Se3

文献类型:期刊论文

作者Cheng, P ; Song, CL ; Zhang, T ; Zhang, YY ; Wang, YL ; Jia, JF ; Wang, J ; Wang, YY ; Zhu, BF ; Chen, X ; Ma, XC ; He, K ; Wang, LL ; Dai, X ; Fang, Z ; Xie, XC ; Qi, XL ; Liu, CX ; Zhang, SC ; Xue, QK
刊名PHYSICAL REVIEW LETTERS
出版日期2010
卷号105期号:7
关键词SINGLE DIRAC CONE INSULATOR BI2TE3
ISSN号0031-9007
通讯作者Cheng, P: Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
中文摘要By using the full density matrix approach to spectral functions within the numerical renormalization group method, we present a detailed study of the magnetic field induced splittings in the spin-resolved and the total spectral densities of a Kondo correlated quantum dot described by the single level Anderson impurity model. The universal scaling of the splittings with magnetic field is examined by varying the Kondo scale either by a change of local level position at a fixed tunnel coupling or by a change of the tunnel coupling at a fixed level position. We find that the Kondo-peak splitting Delta/T(K) in the spin-resolved spectral function always scales perfectly for magnetic fields B < 8T(K) in either of the two T(K)-adjusted paths. Scaling is destroyed for fields B > 10T(K). On the other hand, the Kondo peak splitting Delta/T(K) in the total spectral function does slightly deviate from the conventional scaling theory in whole magnetic field window along the coupling-varying path. Furthermore, we show the scaling analysis suitable for all field windows within the Kondo regime and two specific fitting scaling curves are given from which certain detailed features at low field are derived. In addition, the scaling dimensionless quantity Delta/2B and delta/2B are also studied and they can reach and exceed 1 in the large magnetic field region, in agreement with a recent experiment [T. M. Liu et al., Phys. Rev. Lett. 103, 026803 (2009)].
收录类别SCI
资助信息NSFC; National Basic Research Program of China
语种英语
公开日期2013-09-18
源URL[http://ir.iphy.ac.cn/handle/311004/40561]  
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
Cheng, P,Song, CL,Zhang, T,et al. Landau Quantization of Topological Surface States in Bi2Se3[J]. PHYSICAL REVIEW LETTERS,2010,105(7).
APA Cheng, P.,Song, CL.,Zhang, T.,Zhang, YY.,Wang, YL.,...&Xue, QK.(2010).Landau Quantization of Topological Surface States in Bi2Se3.PHYSICAL REVIEW LETTERS,105(7).
MLA Cheng, P,et al."Landau Quantization of Topological Surface States in Bi2Se3".PHYSICAL REVIEW LETTERS 105.7(2010).

入库方式: OAI收割

来源:物理研究所

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