许兵
简介：
1986年生，2008年本科毕业于武汉大学，获材料物理学士学位；2014年于中国科学院物理研究所获凝聚态物理专业博士学位，之后在北京高压科学研究中心和瑞士弗里堡大学从事博士后研究；2022年1月加入中国科学院物理研究所超导国家重点实验室，任特聘研究员，博士生导师。
主要研究方向：
利用和搭建各类条件下的光学测量手段研究关联电子材料和新型拓扑量子材料。
过去的主要工作及获得的成果：
过去的工作主要聚焦在铁基超导体的电荷动力学研究、5d过渡金属铱氧化物的相变研究以及新型拓扑量子材料的光学性质等方面，研究的内容涉及非常规超导电性及其配对机制、自旋密度波态、电声相互作用、金属-绝缘体相变、Weyl费米子和多重费米子，以及拓扑相变等当前凝聚态物理的前沿科学问题。迄今在Physical Review Letters、 PNAS、Nature子刊等国际知名期刊发表论文49篇。主要成果有：1）揭示铁基超导体中不同电子相态下的电荷动力学性质，包括非费米液体行为、自旋密度波及其涨落、超导能隙，以及电声相互作用与超导转变温度的关联等；2）首次揭示了Sr2IrO4 中Mott能隙到Slater能隙的过渡，以及Nd2Ir2O7 中连续型的Mott 相变和新奇的低熵导电态；3）揭示了TaAs 中Weyl 费米子的光学证据及其与声子的耦合作用，ZrTe5 中温度驱动的拓扑相变和手性拓扑半金属CoSi 中多重费米子的光学响应。
代表性论文及专利：
1. N. Sirica, P. P. Orth, M. S. Scheurer, Y. M. Dai, M. C. Lee, P. Padmanabhan, L. T. Mix, S. W. Teitelbaum, M. Trigo, L. X. Zhao, G. F. Chen, Bing Xu, R. Yang, B. Shen, C. Hu, C. C. Lee, H. Lin, T. A. Cochran, S. A. Trugman, J. X. Zhu, M. Z. Hasan, N. Ni, X. G. Qiu, A. J. Taylor, D. A. Yarotski and R. P. Prasankumar. Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs. Nature Materials 21, 62 (2022).
2. Bing Xu, P. Marsik, S. Sarkar, F. Lyzwa, Y. Zhang, B. Shen, and C. Bernhard, Infrared study of the interplay of charge, spin, and lattice excitations in the magnetic topological insulator EuIn2As2, Phys. Rev. B 103, 245101 (2021).
3. Zhuoliang Ni, A. V. Haglund, H. Wang, Bing Xu, C. Bernhard, D. G. Mandrus, X. Qian, E. J. Mele, C. L. Kane and Liang Wu, Imaging the Néel vector switching in the monolayer antiferromagnet MnPSe3 with strain-controlled Ising order, Nature Nanotechnology 16, 782 (2021).
4. Bing Xu, Y. Zhang, E. H. Alizade, Z. A. Jahangirli, F. Lyzwa, E. Sheveleva, P. Marsik, Y. K. Li, Y. G. Yao, Z. W. Wang, B. Shen, Y. M. Dai, V. Kataev, M. M. Otrokov, E. V. Chulkov, N. T. Mamedov, and C. Bernhard, Infrared study of the multiband low-energy excitations of the topological antiferromagnet MnBi2Te4, Phys. Rev. B 103, L121103 (2021).
5. Zhuoliang Ni, K. Wang, Y. Zhang, O. Pozo, Bing Xu, X. Han, K. Manna, J. Paglione, C. Felser, A. G. Grushin, F. de Juan, E. J. Mele and Liang Wu, Giant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi, Nature Communications 12, 154 (2021).
6. Bing Xu, Z. Fang, M. A. Sánchez-Martínez, J. W. F. Venderbos, Z. Ni, T. Qiu, K. Manna, K. Wang, J. Paglione, C. Bernhard, C. Felser, E. J. Mele, A. G. Grushin, A. M. Rappe, and Liang Wu, Optical signatures of multifold fermions in the chiral topological semimetal CoSi, Proceedings of the National Academy of Sciences 117, 27104 (2020).
7. Z. Ni, Bing Xu, M. A. Sánchez-Martínez, Y. Zhang, K. Manna, C. Bernhard, J. W. F. Venderbos, F. de Juan, C. Felser, A. G. Grushin, and Liang Wu, Linear and nonlinear optical responses in the multifold fermion RhSi, npj Quantum Materials 5, 96 (2020).
8. K. Wang, Bing Xu, C. W. Rischau, N. Bachar, B. Michon, J. Teyssier, Y. Qiu, T. Ohtsuki, B. Cheng, N. P. Armitage, S. Nakatsuji and D. van der Marel, Unconventional free charge in the correlated semimetal Nd2Ir2O7, Nature Physics 16, 1194 (2020).
9. Xiaorui Zheng, Bing Xu, Shuo Li, Han Lin, Ling Qiu, Dan Li and Baohua Jia, Free-standing graphene oxide mid-infrared polarizers, Nanoscale 12, 11480 (2020).
10. Bing Xu, D. Munzar, A. Dubroka, E. Sheveleva, F. Lyzwa, P. Marsik, C. N. Wang, Z. C. Wang, G. H. Cao and C. Bernhard, Superconductivity-induced transverse plasma mode and phonon anomaly in the c-axis response of the bilayer compound RbCa2Fe4As4F2, Phys. Rev. B 101, 214512 (2020).
11. Bing Xu, P. Marsik, E. Sheveleva, F. Lyzwa, A. Louat, V. Brouet, D. Munzar and C. Bernhard, Optical Signature of a Crossover from Mott- to Slater-type Gap in Sr2Ir1−xRhxO4, Phys. Rev. Lett. 124, 027402 (2020).
12. Bing Xu, E. Cappelluti, L. Benfatto, B. P. P. Mallett, P. Marsik, E. Sheveleva, F. Lyzwa, Th. Wolf, R. Yang, X. G. Qiu, Y. M. Dai, H. H. Wen, R. P. S. M. Lobo, C. Bernhard, Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in Ba1−xKxFe2As2, Phys. Rev. Lett. 122, 217002 (2019).
13. N. Sirica, R.I. Tobey, L.X. Zhao, G.F. Chen, Bing Xu, R. Yang, B. Shen, D.A. Yarotski, P. Bowlan, S. A. Trugman, J. X. Zhu, Y.M. Dai, A.K. Azad, N. Ni, X.G. Qiu, A.J. Taylor, and R.P. Prasankumar, Tracking ultrafast photocurrents in the Weyl semimetal TaAs using THz emission spectroscopy, Phys. Rev. Lett. 122, 197401 (2019).
14. Bing Xu, Z. C. Wang, E. Sheveleva, F. Lyzwa, P. Marsik, G. H. Cao and C. Bernhard, Bandselective clean- and dirty-limit superconductivity with nodeless gaps in the bilayer iron-based superconductor CsCa2Fe4As4F2, Phys. Rev. B 99, 125119 (2019).
15. Bing Xu, H. Xiao, B. Gao, Y. H. Ma, G. Mu, P. Marsik, E. Sheveleva, F. Lyzwa, Y. M. Dai, R. P. S. M. Lobo, and C. Bernhard, Optical study of Dirac fermions and related phonon anomalies in the antiferromagnetic compound CaFeAsF, Phys. Rev. B 97, 195110 (2018).
16. Bing Xu, L. X. Zhao, P. Marsik, E. Sheveleva, F. Lyzwa, Y. M. Dai, G. F. Chen, X. G. Qiu, and C. Bernhard, Temperature-Driven Topological Phase Transition and Intermediate Dirac Semimetal Phase in ZrTe5, Phys. Rev. Lett. 121, 187401 (2018).
17. Bing Xu, Y. M. Dai, L. X. Zhao, K. Wang, R. Yang, W. Zhang, J. Y. Liu, H. Xiao, G. F. Chen, S. A. Trugman, J. X. Zhu. J. Taylor, D. A. Yarotski, R. P. Prasankumar and X. G. Qiu, Temperature-tunable Fano resonance induced by strong coupling between Weyl fermions and phonons in TaAs, Nature Communications 8, 14933 (2017).
18. Bing Xu, Y. M. Dai, H. Xiao, B. Shen, H. H. Wen, X. G. Qiu, and R. P. S. M. Lobo, Infrared probe of the gap evolution across the phase diagram of Ba1−xKxFe2As2, Phys. Rev. B 96, 115125 (2017).
19. Bing Xu, Y. M. Dai, L. X. Zhao, K. Wang, R. Yang, W. Zhang, J. Y. Liu, H. Xiao, G. F. Chen, A. J. Taylor, D. A. Yarotski, R. P. Prasankumar and X. G. Qiu, Optical spectroscopy of the Weyl semimetal TaAs, Phys. Rev. B 93, 121110(Rapid Communications) (2016).
20. Bing Xu, Y. M. Dai, H. Xiao, B. Shen, Z.R. Ye, A. Forget, D. Colson, D. L. Feng, H. H. Wen, X. G. Qiu, and R. P. S. M. Lobo, Optical observation of spin-density-wave fluctuations in Ba122 iron-based superconductors, Phys. Rev. B 94, 085147 (2016).
21. Bing Xu, Y. M. Dai, B. Shen, H. Xiao, Z.R. Ye, A. Forget, D. Colson, D. L. Feng, H. H. Wen, C. C. Homes, X. G. Qiu, and R. P. S. M. Lobo, Anomalous phonon redshift in K-doped BaFe2As2 iron pnictides, Phys. Rev. B 91, 104510 (2015).
22. Y. M. Dai, Bing Xu, B. Shen, H. Xiao, H. H. Wen, X. G. Qiu, C. C. Homes, and R. P. S. M. Lobo, Hidden T-Linear Scattering Rate in Ba0.6K0.4Fe2As2 Revealed by Optical Spectroscopy, Phys. Rev. Lett. 111, 117001 (2013).
培养研究生情况：
每年拟招收研究生1-2人，欢迎具有物理或材料背景的学生联系报考。
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