李刚

时间:2018-03-01浏览:3885设置

李刚课题组先容


课题组长
李刚,助理教授、研究员
通讯地址:上海市浦东新区华夏中路393号太阳娱乐5号楼303G
电子邮件:ligang@shanghaitech.edu.cn 
2009年毕业于德国波恩大学(Bonn University),获得凝聚态理论物理专业博士学位(导师:Prof. Hartmut Monien);后在德国Wuerzburg大学担任Werner Hanke教授的博士后研究助理,引导博士生两名。后与Giorgio Sangiovanni教授共同担任德国国家重点研究项目SFB 1170 ToCoTronics中的co-PI。2015年起在维也纳技术大学Karsten Held教授课题组中担任subgroup leader,引导博士生两名。于2017年1月起全职在太阳集团担任助理教授,独立研究员(PI)。 李刚博士近年的研究工作主要发表在Nature Communications, Phys. Rev. Lett., Scientific Report,Phys. Rev. B等SCI期刊上,部分工作被综合媒体报道,并被同行验证。

研究兴趣

新奇量子材料理论与模拟课题组主要研究由电子、自旋、自旋-轨道耦合及多粒子集体激发行为所导致的新奇量子现象。通过理论计算与模拟,大家希翼能够找到复杂现象背后简单而深邃的物理机制,进而从理论上预言更多、性能更加优异的量子材料,同时为更有效的理解实验上观察到的物理现象提供有力的理论支撑。


课题组的主要研究方向包括:

1.电子强关联效应导致的自发对称破缺、金属-绝缘体相变、非传统磁性等物理现象和材料

由电子库仑相互作用引发的金属-绝缘体相变是凝聚态物理学中的一个重要概念。课题组结合第一性原理和动力学平均场(包括动力学平均场的多种非局域扩展方法)重点研究强关联材料的电子和磁性性质。欢迎对电子强关联材料理论研究感兴趣的同学报考课题组。


2.由自旋-轨道耦合,对称性保护导致的非平庸能带兼并和反转,以及由此产生的拓扑绝缘体,DiracWeyl半金属等新型量子材料。

      量子拓扑材料是超越传统金属-绝缘体分类的一种新的光学状态。这一类材料的体态有和绝缘体类似的性质,电子的费米面位于导带和价带中间。但在它们的表面/边界上存在特殊的量子态,允许电子通过这些态穿过费米面。量子拓扑材料的研究是物理学近年来的重要科学前沿之一。课题组结合第一性原理计算方法和能带拓扑分析,以预言新材料和说明实验为主要研究目标,近年来在研究二维宽禁带量子霍尔效应绝缘体,三维拓扑绝缘体和Dirac半金属上取得了一系列成果。欢迎对拓扑量子态和第一性原理计算感兴趣的同学报考课题组。


3.量子多体理论的研究与扩展。



准确描述电子强关联材料是凝聚态理论物理的一个难点,发展高效准确的量子多体方法一直是凝聚态理论领域中的研究热点。课题组在多个不同的量子多体方法上均有深入研究,利用费曼图微扰展开发展出了一套能够同时描述电子局域相互作用和非局域涨落的理论方法。目前课题组已经开发的量子多体程序库中包括:动力学平均场(DMFT),动力学团簇方法(dynamical cluster approach),实空间团簇动力学平均场(cluster DMFT),对偶费米子方法(dual-fermion)parquet方法;连续时间蒙特卡洛(including both hybridization-expansion and interaction-expansion flavors)。欢迎对量子多体方法和数值模拟感兴趣的同学报考课题组。



课题组开发程序包

课题组动态


【交流访问】2017年7月1日-5日, UC San Diego教授Congjun Wu访问课题组,报告题目“Unconventional magnetism and spontaneous spin-orbit ordering”
【交流访问】2017年6月15日-16日,南京大学万贤刚教授访问课题组,报告题目“5d过渡金属氧化物奇异特性研究”


【交流访问】史武军目前在德国德累斯顿马普所访问

【春季学校】夏云悠悠将于325-49日在德国Juelich参加拓扑学春季学校培训

【交流访问】维也纳技术大学的博士生Petra Pudleiner将于47日起开始在我课题组交流访问半年

发表文章

PUBLICATIONS

5 most important papers

  1. F. Reis*, G. Li*, L. Dudy, M. Bauernfeind, S. Glass, W. Hanke, R. Thomale, J. Schaefer, R. Claessen, Bismuthene on a SiC substrate: A candidate for a high-temperature quantum spin Hall material, Science 357, 8142 (2017)

  2. G. Li, P. Hoepfner, J. Schaefer, R. Claessen, W. Hanke, Magnetic order in a frustrated two-dimensional atom lattice at a semiconductor surface. Nat. Commun. 4, 2617 (2013)

  3. L. Peng, Y. Yuan, G. Li#, X. Yang, J.J. Xian, C.J. Yi, Y.G. Shi, Y.S. Fu#, Observation of topological states residing at step edges of WTe2, Nat. Commun. 8, 41467 (2017)

  4. G. Li#, Hidden physics in the dual-fermion approach: A special case of a nonlocal expansion, Phys. Rev. B 91, 165134 (2015)

  5. L. Si, O. Janson, G. Li#, Z. Zhong, Z.L. Liao, G. Koster, K. Held#, Quantum anomalous Hall states in ferromagnetic SrRuO3(111) Bilayers, Phys. Rev. Lett. 119, 026402 (2017)


Full list of publications


Publication in 2019

  1. Petra Pudleiner, Anna Kauch, Karsten Held* and Gang Li*, Competition between antiferromagnetic and charge density wave fluctuations in the extended Hubbard model. Phys. Rev. B 100, 075108 (2019)

  2. Jiaxin Zhang, Xiaochan Cai, Wie Xia, Aiji Liang, Junwei Huang, Chengwei Wang, Lexian Yang, Hongtao Yuan, Yulin Chen, Shilei Zhang, Yanfeng Guo*, Zhongkai Liu* and Gang Li*,Unveiling Electronic Correlation and the Ferromagnetic Superexchange Mechanism in the van der Waals Crystal CrSiTe3, Phys. Rev. Lett. 123, 047203 (2019)

  3. G. Li*, A. Kauch, P. Pudleiner and K. Held, The victory project v1.0: An efficient parquet equations solver, Comp. Phys. Commun. 03.008(2019), doi.org/10.1016/j.cpc.2019.03.008

  4. Jiajun Zhu, Yunyouyou Xia, Gang Li, Shengqiang Zhou, S. Wimmer, G. Spingholz, A. Pashkin, M. Helm and H. Schneider, Absorption edge, urbach tail, and electron-phonon interactions in topological insulator Bi2Se3 and band insulator (Bi0.89In0.11)2Se3. App. Phys. Lett. 114, 162105 (2019)

  5. M. Ye, T. Xu, G. Li, S. Qian, Y. Takeda, Y. Saitoh, X.-Y. Zhu, M. Nurmamat, K. Sumida, Y. Ishida, S. Shin, and A. Kimura, Negative Te spin polarization responsible for ferromagnetic order in the doped topological insulator V0.04(Sb1?xBix)1.96Te3, Phys. Rev. B 99, 144413 (2019)

  6. P. Pudleiner, P. Thunstrom, A. Valli, A. Kauch, G. Li and K. Held, Parquet approximation for molecules: Spectrum and optical conductivity of the Pariser-Parr-Pople model, Phys. Rev. B 99, 125111 (2019)


Publication in 2018

  1. G. Li*, W. Hanke, E.M. Hankiewicz, F. Reis, J. Schaefer, R. Claessen, C. Wu and R. Thomale, Theoretical paradigm for the quantum spin Hall effect at high temperatures, Phys. Rev. B 98, 165146 (2018)

  2. F. Dominguez, B. Scharf, G. Li, J. Schaefer, R. Claessen, W. Hanke, R. Thomale and E.M. Hankiewicz, Testing topological protection of edge stats in hexagonal quantum spin Hall candidate materials, Phys. Rev. B 98, 161407 (2018)

  3. X. Su, Z. Xue, G. Li* and P. Yu*, Edge State Engineering of Graphene Nanoribbons, Nano Lett. 18, 5744 (2018)

  4. C. Chen, M. Wang, J. Wu, H. Fu, H. YangZ. Tian, T. TuH. PengY. SunX. XuJ. JiangN. B. M. Schr?terY. LiD. PeiS. LiuS. A. EkahanaH. YuanJ. XueG. LiJ. JiaZ. LiuB. YanH. Peng,and Y. Chen,Electronic structures and unusually robust bandgap in an ultrahigh-mobility layered oxide semiconductor, Bi2O2Se, Science Advances 4:eaat8355 (2018)

  5. Y. Shang, G. Li, W. Liu and Z. Ning, Quasi-2D Inorganic CsPbBr3 perovskite for efficient and stable light-emitting diodes, Advanced Functional Materials, 28, 22 (2018)

  6. C. Turner, D. Koumoulis, G. Li, Z. Zujovic, R.E. Taylor, R.B. Kaner, Synthesis and characterization of aluminum diboride products using Al-27, B-11 NMR and n.04-07, ab-initio studies, Journal of Materials Science 53, 3309 (2018)


Publication in 2017

  1. F. Reis*, G. Li*, L. Dudy, M. Bauernfeind, S. Glass, W. Hanke, R. Thomale, J. Schaefer, R. Claessen, Bismuthene on a SiC substrate: A candidate for a high-temperature quantum spin Hall material, Science 357, 8142 (2017)

  2. L. Peng, Y. Yuan, G. Li#, X. Yang, J.J. Xian, C.J. Yi, Y.G. Shi, Y.S. Fu#, Observation of topological states residing at step edges of WTe2, Nat. Commun. 8, 41467 (2017)

  3. L. Si, O. Janson, G. Li#, Z. Zhong, Z.L. Liao, G. Koster, K. Held#, Quantum anomalous Hall states in ferromagnetic SrRuO3(111) Bilayers, Phys. Rev. Lett. 119, 026402 (2017)

  4. C. Platt, G. Li, M. Fink, R. Thomale, Evolution of superconducting gap anisotropy in hole-doped 122 iron pnictides, Physica status solidi B-basic solid state physics 254 (2017)

  5. C.W. Wang, Y.Y.Y. Xia, Z. Tian, J. Jiang, B.H. Li, S.T. Cui, H.F. Yang, A.J. Liang, X.Y. Zhan, G.H. Hong, S. Liu, C. Chen, M.X. Wang, L.X. Yang, Z. Liu, Q.X. Mi, G. Li, J.M. Xue, Z.K. Liu, Y.L. Chen, Photoemission study of the electronic structure of valence band convergent SnSe, Phys. Rev. B 96, 165118 (2017)

  6. G. Li*#, B.H. Yan, Z.J. Wang, K. Held, Topological Dirac semimetal phase in Pd and Pt oxides, Phys. Rev. B 95, 035102 (2017)

  7. Y.W. Li, Y.Y.Y. Xia, S.A. Ekahana, N. Kumar, J. Jiang, L.X. Yang, C. Chen, C.X. Liu, B.H. Yan, C. Felser, G. Li, Z.K. Liu, Y.L. Chen, Topological origin of the type-II Dirac fermions in PtSe2, Phys. Rev. Mat. 7, 074202 (2017)

  8. Y.Y.Y. Xia, G. Li#,Triply degenerate nodal points and topological phase transitions in NaCu3Te2, Phys. Rev. B 96, 241204 (2017)


Publication before 2017

  1. S. Glass, F. Reis, M. Bauernfeind, J. Aulbach, M.R. Scholz, F. Adler, L. Dudy, G. Li, R. Claessen, J. Schaefer, Atomic-scale mapping of layer-by-layer hydrogen etching and passivation of SiC(0001) substrates, J. Phys. Chem. C 120, 10361 (2016)

  2. G. Li*#, N. Wentzell, P. Pudleiner, K. Held, Efficient implementation of the parquet equations: Role of the reducible vertex function and its kernel approximation, Phys. Rev. B 93, 165103 (2016)

  3. P. Pudleiner, T. Schafer, D. Rost, G. Li, K. Held, N. Blumer, Momentum structure of the self-energy and its parameterization for the two-dimensional Hubbard model, Phys. Rev. B 93, 195134 (2016)

  4. G. Li#, W. Hanke, G. Sangiovanni, B. Tauzettel, Interacting weak topological insulators and their transition to Dirac semimetal phases, Phys. Rev. B 92, 235149 (2016)

  5. G. Li#, Hidden physics in the dual-fermion approach: A special case of a nonlocal expansion, Phys. Rev. B 91, 165134 (2015)

  6. X. Zhang, W. Wu, G. Li, Q. Sun, A.C. Ji, Phase diagram of interacting Fermi gas in spin-orbit coupled squared lattice, New J. Phys. 17, 073036 (2015)

  7. M. Laubach, R. Thomale, C. Platt, W. Hanke, G. Li#, Phase diagram of the Hubbard model on the anisotropic triangular lattice, Phys. Rev. B 91, 245125 (2015)

  8. G. Li*#, B.H. Yan, R. Thomale, W. Hanke, Topological nature and the multiple Dirac cones hidden in Bismuth high-Tc superconductor, Sci. Rep. 5,10435 (2015)

  9. S. Glass, G. Li, F. Adler, J. Aulbach, A. Fleszar, R. Thomale, W. Hanke, R. Claessen, J. Schaefer#, Triangular spin-orbit-coupled lattice with strong coulomb correlations: Sn atoms on a SiC(0001) substrate, Phys. Rev. Lett. 115, 247602 (2015)

  10. G. Li*#, A. Antipov, A. Rubtsov, S. Kirchner, W. Hanke, Competing phases of the Hubbard model on a triangular lattice: Insights from the entropy, Phys. Rev. B 89, 161118(2014)

  11. A. Barfuss, L. Dudy, M.R. Scholtz, M.R. Scholz, H. Roth, P. Hoepfner, C. Blumenstein, G. Landolt, J.H. Dil, N.C. Plumb, M. Radovic, A. Bostwick, E. Rotenberg, A. Fleszar, G. Bihlmayer, D. Wortmann, G. Li, W. Hanke, R. Claessen, J. Schaefer, Elemental topological insulator with tunable Fermi level: strained alpha-Sn on InSb(001), Phys. Rev. Lett. 111, 157205 (2013)

  12. G. Li, P. Hoepfner, J. Schaefer, R. Claessen, W. Hanke, Magnetic order in a frustrated two-dimensional atom lattice at a semiconductor surface. Nat. Commun. 4, 2617 (2013)

  13. G. Li, W. Hanke, Efficient treatment of the high-frequency tail of the self-energy function and its relevance for multiorbital models, Phys. Rev. B 85, 115103 (2012)

  14. J.C. Budich, R. Thomale, G. Li, M. Laubach, S.C. Zhang, Fluctuation-induced topological quantum phase transitions in quantum spin-Hall and anomalous-Hall insulators, Phys. Rev. B 86, 201407 (2012)

  15. G. Li*#, M. Laubach, A. Fleszar, W. Hanke, Geometrical frustration and the competing phases of the Sn/Si(111) root 3 x root 3 R30 degress surface systems. Phys. Rev. B 83, 041104 (2011)

  16. G. Li#, W. Hanke, A.N. Rubtsov, S. Baese, M. Potthoff, Accessing thermodynamics from dynamical cluster-embedding approaches. Phys. Rev. B 80, 195118 (2009)

  17. H. Hafermann, G. Li, A.N. Rubtsov, M.I. Katsnelson, A.I. Lichtenstein, H. Monien, Efficient perturbation theory for quantum lattice model. Phys. Rev. Lett. 102, 206401 (2008)

  18. G. Li, H. Lee, H. Monien, Determination of the lattice susceptibility within the dual fermion method, Phys. Rev. B. 78, 195105 (2008)

  19. H. Lee, G. Li, H. Monien, Hubbard model on the triangular lattice using dynamical cluster approximation and dual fermion methods. Phys. Rev. B 78, 205117 (2008)

  20. G. Li, G.S. Tian, Ferromagnetism in an itinerant electron cluster, Commun. Theore. Phys. 44, 188 (2005)


本组成员

Petra Pudleiner

量子多体理论

邮箱:pudleiner@ifp.tuwien.ac.at

史武军

拓扑材料计算

邮箱:shiwujun@shanghaitech.edu.cn

夏云悠悠

拓扑材料计算

邮箱:xiayyy@shanghaitech.edu.cn


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