Yi Zhang (张燚)
Position
2019 - 2022 Postdoctoral Fellow
Education
2004–2008 B.S., University of Science and Technology of China (USTC), Hefei, China.
2008–2014 Ph.D., Boston College, Boston, USA
Professional Experience
2019-2021 Postdoctoral Fellow, Kavli ITS, UCAS
2014-2019 Postdoctoral Associate, Louisiana State University, Baton Rouge
Research Interest
Localization effects in disordered systems including the interplay between disorder and interaction
Majorana modes on the topological superconductors
Strongly correlated electron systems especially high temperature superconductivity and other unconventional superconductivity
Publications
[1] Hanna Terletska, Yi Zhang, Ka-Ming Tam, Tom Berlijn, Liviu Chioncel, N. S. Vidhyadhiraja, and Mark Jarrell. Systematic quantum cluster typical medium method for the study of localization in strongly disordered electronic systems. Applied Sciences, 8(12), 2018.
[2] Yi Zhang, R. Nelson, K.-M. Tam, W. Ku, U. Yu, N. S. Vidhyadhiraja, H. Terletska, J. Moreno, M. Jarrell, and T. Berlijn. Origin of localization in ti-doped si. Phys. Rev. B 98, 174204, Nov 2018.
[3] Y. Zhang, Y. F. Zhang, S. X. Yang, K.-M. Tam, N. S. Vidhyadhiraja, and M. Jarrell. Calculation of two-particle quantities in the typical medium dynamical cluster approximation. Phys. Rev. B 95, 144208, Apr 2017.
[4] H. Terletska, Y. Zhang, L. Chioncel, D. Vollhardt, and M. Jarrell. Typical-medium
multiple-scattering theory for disordered systems with anderson localization. Phys.
Rev. B 95, 134204, Apr 2017.
[5] Yi Zhang, R. Nelson, Elisha Siddiqui, K.-M. Tam, U. Yu, T. Berlijn, W. Ku, N. S. Vidhyadhiraja, J. Moreno, and M. Jarrell. Generalized multiband typical medium dynamical cluster approximation: Application to (ga,mn)n. Phys. Rev. B 94, 224208, Dec 2016.
[6] Yi Zhang, Hanna Terletska, C. Moore, Chinedu Ekuma, Ka-Ming Tam, Tom Berlijn, Wei Ku, Juana Moreno, and Mark Jarrell. Study of multiband disordered systems using the typical medium dynamical cluster approximation. Phys. Rev. B 92, 205111, Nov 2015.
[7] Kun Jiang, Yi Zhang, Sen Zhou, and Ziqiang Wang. Chiral spin density wave order on the frustrated honeycomb and bilayer triangle lattice hubbard model at half filling. Phys. Rev. Lett. 114, 216402, May 2015.
[8] Yi Zhang, Paulo Farinas, and Kevin Bedell. The "higgs" amplitude mode in weak ferromagnetic metals. Acta Physica Polonica A, 127:153, June 2013.
[9] Yi Zhang and Kevin S. Bedell. Spin orbit magnetism and unconventional superconductivity. Phys. Rev. B 87, 115134, Mar 2013.
[10] Yang Wang, Tianyi Sun, Trilochan Paudel, Yi Zhang, Zhifeng Ren, and Krzysztof Kempa. Metamaterial-plasmonic absorber structure for high efficiency amorphous silicon solar cells. Nano Letters, 12(1): 440–445, 2012. PMID: 22185407.
Junji Fujimoto (藤本 纯治)
Position
Postdoctoral Fellow (2019-2021)
View Dr. J. Fujimoto's CV
Education
2012 - 2015 Doctor of Science
2010 - 2012 Master of Engineering
Professional Experience
2019 - 2021 Postdoctoral Fellow, Kavli ITS, UCAS
2017 - 2019 Visiting researcher, Center for Emergent Matter Science, RIKEN
2015 - 2019 Postdoctoral fellow, Institute for Chemical Research, Kyoto University
2013 - 2015 JSPS Research Fellowship for Young Scientists (DC2)
Research Activities
spintronics
field theoretical approach
Publications
Ching-Kai Chiu （邱靖凯）
Position
Postdoctor (2018 - 2020)
Education
2007-2013 Ph. D. in Physics
University of Illinois at Urbana-Champaign
2002-2006, B. S. in Physics & Mathematics
National Taiwan University
Experiences
2018-2020 Postdoctoral Researcher
Kavli ITS, UCAS
2015-2018 Postdoctoral Researcher
University of Maryland
2013-2015 Postdoctoral Fellowship
University of British Columbia
Publications
1. *Classi cation of topological insulators and superconductors in the presence of re ection symmetry, Ching-Kai Chiu, Hong Yao, and Shinsei Ryu, Phys. Rev. B, 88, 075142 (2013)
2. *Classi cation of re ection symmetry protected topological semimetals and nodal superconductors, Ching-Kai Chiu and Andreas P. Schnyder, Phys. Rev. B, 90, 205136 (2014)
3. *Topological nodal-line fermions in the non-centrosymmetric superconductor
compound PbTaSe2, Guang Bian, Tay-Rong Chang, Raman Sankar, Su-Yang Xu, Hao Zheng, Titus Neupert, Ching-Kai Chiu, Shin-Ming Huang, Guoqing Chang, Ilya Belopolski, Daniel S.Sanchez, Madhab Neupane, Nasser Alidoust, Chang Liu, BaoKai Wang, Chi-Cheng Lee, Horng-Tay Jeng, Arun Bansil, Fang- cheng Chou, Hsin Lin, M. Zahid Hasan, Nat. Commun. 7, 10556 (2016)
4. *Topological semi-metals with line nodes and drumhead surface states, Y.-H. Chan, Ching-Kai Chiu, M. Y. Chou, Andreas P. Schnyder, Phys. Rev. B 93, 205132 (2016) (Editors' Suggestion)
5. * Classi cation of topological quantum matter with symmetries, Ching-Kai Chiu, Andreas P. Schnyder, Je rey C. T. Teo and Shinsei Ryu, Rev. Mod. Phys. 88, 035005 (2016)
6. Symmetries, Dimensions, and Topological Insulators: the Mechanism Behind the Face of the Bott clock, Michael Stone, Ching-Kai Chiu, and Abhishek Roy, J. Phys. A: Math. Theor. 44 045001(2011).
7. Vortex Lines in Topological-Insulator Heterostructures, Ching-Kai Chiu, Taylor L. Hughes, and Matthew J. Gilbert, Phys. Rev. B 84, 144507 (2011).
8. Stabilization of Majorana Modes in Vortices in the Superconducting Phase of
Topological Insulators Using Topologically Trivial Bands, Ching-Kai Chiu, Pou-yan Ghaemi, and Taylor L. Hughes, Phys. Rev. Lett., 104, 237009 (2012)
9. Tuning between singlet, triplet, and mixed pairing states in an extended Hubbard chain, Kuei Sun, Ching-Kai Chiu, Hsiang-Hsuan Hung, and Jiansheng Wu, Phys. Rev. B, 89, 104519 (2014)
10. Majorana fermion exchange in strictly one dimensional structures, Ching-Kai Chiu, M.M. Vazifeh, and M. Franz, EPL 110 (2015) 10001 (Editor's Choice)
11. Strongly interacting Majorana fermions, Ching-Kai Chiu, D. I. Pikulin and M. Franz, Phys. Rev. B 91, 165402 (2015)
12. Classi cation of crystalline topological semimetals with an application to Na3Bi, Ching-Kai Chiu and Andreas P. Schnyder, Proceedings of the International Workshop on Dirac Electrons in Solids 2015
13. Multiple signatures of topological transitions for interacting fermions in chain lattices, Y.-H. Chan, Ching-Kai Chiu, and Kuei Sun, Phys. Rev. B 92, 104514 (2015)
14. Interaction-enabled topological phases in topological insulator-superconductor het-erostructures, D. I. Pikulin, Ching-Kai Chiu, Xiaoyu Zhu, M. Franz, Phys. Rev. B 92, 075438 (2015)
15. Practical new platform for interaction-enabled topological phases, Ching-Kai Chiu, D, I. Pikulin and M. Franz, Phys. Rev. B 92, 241115(R) (2015)
16. Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2, Guang Bian, Tay-Rong Chang, Hao Zheng, Saavanth Velury, Su-Yang Xu, Titus Neupert, Ching-Kai Chiu, Daniel S. Sanchez, Ilya Belopolski, Nasser Alidoust, Peng-Jen Chen, Guoqing Chang, Arun Bansil, Horng-Tay Jeng, Hsin Lin, M. Zahid Hasan, Phys. Rev. B 93, 121113(R) (2016)
17. Induced spectral gap and pairing correlations from superconducting proximity e ect, Ching-Kai Chiu, William S. Cole, and S. S. Das Sarma, Phys. Rev. B 94, 125304 (2016)
18. Type-II Dirac surface states in topological crystalline insulators, Ching-Kai Chiu, Y.-H. Chan, Xiao Li, Y. Nohara, and A. P. Schnyder, Phys. Rev. B 95, 035151 (2017) (Editors' Suggestion
19. Engineering of many-body Majorana states in a topological insulator/s-wave su-perconductor heterostructure, Hsiang-Hsuan Hung, Jiangsheng Wu, Kuei Sun, and Ching-Kai Chiu, Sci. Rep. 7, 3499 (2017)
20. Conductance of a superconducting Coulomb blockaded Majorana nanowire, Ching-Kai Chiu, Jay D. Sau, S. Das Sarma, Phys. Rev. B 96, 054504 (2017)
21. Conductance interference in a superconducting Coulomb blockaded Majorana
ring, Ching-Kai Chiu, Jay D. Sau, S. Das Sarma, Phys. Rev. B 97, 035310
Preprints
1. Nontrivial surface topological physics from strong and weak topological insulators and superconductors, Ching-Kai Chiu, arXiv:1410.1117
2. Chiral Majorana Fermion Modes on the Surface of Superconducting Topological Insulators, Ching-Kai Chiu, Guang Bian, Hao Zheng, Jiaxin Yin, Songtian S. Zhang, Su-Yang Xu, and M. Zahid Hasan, arXiv:1612.09276 (submit to EPL)
3. Helical Majorana edge mode in a superconducting antiferromagnetic quantum spin Hall insulator, Yingyi Huang and Ching-Kai Chiu, arXiv:1708.05724 (sub- mit to PRL)
4. Topological band crossings in hexagonal materials, Jonathan Zhang, Y.-H. Chan, Ching-Kai Chiu, Maia G. Vergniory, Leslie M. Schoop, Andreas P. Schnyder, arXiv:1805.05120 (accepted by PR Materials)
5. Fractional Josephson E ect with and without Majorana Zero Modes, Ching-Kai Chiu, S. Das Sarma, arXiv:1806.02224 (submit to PRB)
Contact
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Yuya Ominato (大凑 友也）
Position
Postdoctoral Fellow (2019-2023)
View Dr. Y. Ominato's CV
Education
Mar. 2011, B.S., Physics, Tohoku University
Mar. 2013, M.S., Physics, Tohoku University
Mar. 2016, Ph.D. Physics, Tohoku University
Professional Experience
Apr. 2016-Mar. 2019, Postdoctoral Researcher, IMR, Tohoku University
Apr. 2019-present, Postdoctoral Fellow, Kavli ITS, UCAS
Research Activities
Spin quantum transport
Publication
(Refereed Journal)
[1] Y. Ominato and M. Koshino, Orbital magnetic susceptibility of finite-sized graphene, Physical Review B 85, 165454 (2012)
[2] Y. Ominato and M. Koshino, Orbital magnetism of grapheme flakes, Physical Review B 87, 115433 (2013)
[3] Y. Ominato and M. Koshino, Orbital magnetism of grapheme nanostructures, Solid State Communications 175-176, 51 (2013)
[4] Y. Ominato and M. Koshino, Quantum transport in three-dimensional Weyl electron system, Physical Review B 89, 054202 (2014)
[5] Y. Ominato and M. Koshino, Quantum transport in three-dimensional Weyl electron system in the presence of charged impurity scattering, Physical Review B 91, 035202 (2015)
[6] Y. Ominato and M. Koshino, Magnetotransport in Weyl semimetals in the quantum limit: Role of topological surface states, Physical Review B 93, 245304 (2016)
[7] Y. Ominato, K. Kobayashi, and K. Nomura, Anisotropic magnetotransport in Dirac-Weylmagnetic junctions, Physical Review B 95, 085308 (2017)
[8] K. Kobayashi, Y. Ominato, and K. Nomura, Helicity-protected domain-wall magnetoresistance in ferromagnetic Weyl semimetal, J. Phys. Soc. Jpn. 87, 073707 (2018)
[9] Y. Ominato and K. Nomura, Spin susceptibility of three-dimensional Dirac semimetals, Physical Review B 97, 245207 (2018)
[10] Y. Ominato, A. Yamakage, and K. Nomura, Electric Polarization in Magnetic Topological Nodal Semimetal Thin Films, Condens. Matter 2018, 3(4), 43
Yuichi Ohnuma (大沼 悠一）
Position
Postdoctoral Fellow (2018 - 2019)
View Dr. Y. Ohnuma's Personal CV
Education
Ph.D (2011 - 2016)
Ph.D. in Physics, Tohoku University, Japan
B. S. (2007 - 2011)
B. S. in Physics, Tohoku University, Japan
Professional Experience
Postdoctoral Fellow, Advanced Science Research Center, Japan Atomic Energy Agency, 2016.04–2018.03
Postdoctoral Fellow, Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, 2018.04–2019.03
Research Activities
Publications
M. Mamoru, Y. Ohnuma, T. Kato, and S. Maekawa
“Spin Current Noise of the Spin Seebeck Effect and Spin Pumping”
Physical Review Letters 120, 037201 (2018).
Y. Ohnuma, M. Mamoru, and S. Maekawa
“Theory of the spin Peltier effect”
Physical Review B 96, 134412 (2017).
M. Mamoru, Y. Ohnuma, and S. Maekawa
“Theory of spin hydrodynamic generation”
Physical Review B 96, 020401(R) (2017).
Y. Ohnuma, M. Mamoru, and S. Maekawa
“Spin transport in half-metallic ferromagnets”
Physical Review B 94, 184405 (2016).
S. Geprägs, A. Kehlberger, F. D. Coletta, Z. Qiu, E.-J. Guo, T. Schulz, C. Mix, S. Meyer, A. Kamra, M. Althammer, H. Huebl, G. Jakob, Y. Ohnuma, H. Adachi, J. Barker, S. Maekawa, G. E. W. Bauer, E. Saitoh, R. Gross, S. T. B. Goennenwein, and M. Kläui
“Origin of the spin Seebeck effect in compensated ferrimagnets”
Nature Communications 7, 10452 (2016).
Y. Ohnuma, H. Adachi, E. Saitoh, and S. Maekawa
“Magnon instability driven by heat current in magnetic bilayers”
Physical Review B 92, 224404 (2015).
Y. Ohnuma, H. Adachi, E. Saitoh, and S. Maekawa
“Enhanced dc spin pumping into a fluctuating ferromagnet near Tc”
Physical Review B 89, 174417 (2014).
Y. Ohnuma, H. Adachi, E. Saitoh, and S. Maekawa
“Spin Seebeck effect in antiferromagnets and compensated ferrimagnets”
Physical Review B 87, 014423 (2013).
Contact
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.
Office: Rm. 407, Building A, Institute of Physics, CAS, Haidian Dist., Beijing
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