屈凡明
屈凡明
简介:研究员，博士生导师，Q02课题组长。1985年生于山东。2007年于南开大学获得物理学专业学士学位，2012年于物理研究所获得凝聚态物理专业理学博士学位。2012年8月至2016年8月在荷兰代尔夫特理工大学（Delft University of Technology）从事博士后研究。2016年8月加入物理研究所，入选国家海外人才引进计划。
主要研究方向:
主要从事低温量子输运研究和拓扑量子计算研究，在极低温和强磁场条件下研究低维材料的输运性质，包括拓扑量子材料、物性与器件的研究。
过去的主要工作及获得的成果:
1. 在三维拓扑绝缘体材料中结合微加工手段研究了方形环阵列的自旋轨道耦合调制，观测到Aharonov-Casher效应，并实现了很强的自旋轨道耦合调节效率。
2. 较早的系统的研究了三维拓扑绝缘体中的超导邻近效应，为后续一系列探索马约拉纳费米子的实验奠定基础。
3. 最早在二维拓扑绝缘体InAs/GaSb中引入超导电性，并通过电场调制实现了边缘态超导。
4. 在InAs/GaSb中实现了能带的原位调节，观测到平庸绝缘体相到拓扑绝缘体相的转变。
5. 发展了一套用于对样品进行纳米尺度电场调节的flip-chip方法，在高迁移率GaAs二维电子气中实现了整数量子霍尔态下的干涉器实验，为在超高质量样品中研究神秘的5/2分数态和探索马约拉纳费米子打下基础。
6. 基于有强自旋轨道耦合的InSb量子阱观测到量子点接触器件的量子化电导平台，在旋转磁场中观测到g-factor的各向异性。
代表性论文及专利:
1. V. S. Pribiag#, A. J. A. Beukman#, Fanming Qu#, Maja C. Cassidy, Christophe Charpentier, Werner Wegscheider, Leo P. Kouwenhoven*, “Edge-Mode Superconductivity in a Two-dimensional Topological Insulator”, Nature Nanotechnology 10, 593 (2015).
2. Fanming Qu#, A. J. A. Beukman#, Stevan Nadj-Perge, Michael Wimmer, Binh-Minh Nguyen, Wei Yi, Jacob Thorp, Marko Sokolich, Andrey A. Kiselev, Michael J. Manfra, Charles M. Marcus, Leo P. Kouwenhoven*, “Electric and Magnetic Tuning Between the Trivial and Topological Phases in InAs/GaSb Double Quantum Wells”, Physical Review Letters 115, 036803 (2015).
3. Fanming Qu, Fan Yang, Jun Chen, Jie Shen, Yue Ding, Jiangbo Lu, Yuanjun Song, Huaixin Yang, Guangtong Liu, Jie Fan, Yongqing Li, Zhongqing Ji, Changli Yang, Li Lu*, "Aharonov-Casher effect in Bi2Se3 square-ring interferometers", Physical Review Letters 107, 016802 (2011).
4. A. J. A. Beukman#, Fanming Qu#, Ken West, Loren Pfeiffer, Leo P. Kouwenhoven*, "A non-invasive method for nanoscale electrostatic gating of pristine materials", Nano Letters 15, 6883 (2015).
5. Fanming Qu#, Fan Yang#, Jie Shen#, Yue Ding, Jun Chen, Zhongqing Ji, Guangtong Liu, Jie Fan, Xiunian Jing, Changli Yang, Li Lu*, "Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures", Scientific Reports 2, 339 (2012).
6. Fanming Qu, Jasper van Veen, Folkert K. de Vries, Arjan J. A. Beukman, Michael Wimmer, Wei Yi, Andrey A. Kiselev, Binh-Minh Nguyen, Marko Sokolich, Michael J. Manfra, Fabrizio Nichele, Charles M. Marcus, and Leo P. Kouwenhoven, "Quantized Conductance and Large g-Factor Anisotropy in InSb Quantum Point Contacts" Nano Letters 16, 7509 (2016).
7. Guang Yang, Zhaozheng Lyu, Junhua Wang, Jianghua Ying, Xiang Zhang, Jie Shen, Guangtong Liu, Jie Fan, Zhongqing Ji, Xiunian Jing, Fanming Qu*, and Li Lu*, "Protected gap closing in Josephson trijunctions constructed on Bi2Te3" Physical Review B 100, 180501(R) (2019).
8. Jianghua Ying, Guang Yang, Zhaozheng Lyu, Guangtong Liu, Zhongqing Ji, Jie Fan, Changli Yang, Xiunian Jing, Huaixin Yang, Li Lu*, and Fanming Qu*, "Gate-tunable h/e-period magnetoresistance oscillations in Bi2O2Se nanowires" Physical Review B 100, 235307 (2019).
9. Jianghua Ying, Jiangbo He, Guang Yang, Mingli Liu, Zhaozheng Lyu, Xiang Zhang, Huaiyuan Liu, Kui Zhao, Ruiyang Jiang, Zhongqing Ji, Jie Fan, Changli Yang, Xiunian Jing, Guangtong Liu, Xuewei Cao, Xuefeng Wang, Li Lu,* and Fanming Qu*，"Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction" Nano Letters 20, 2569 (2020).
10. Jiangbo He#, Dong Pan#, Guang Yang, Mingli Liu, Jianghua Ying, Zhaozheng Lyu, Jie Fan, Xiunian Jing, Guangtong Liu, Bo Lu , Dong E. Liu, Jianhua Zhao*, Li Lu*, and Fanming Qu*, "Nonequilibrium interplay between Andreev bound states and Kondo effect" Physical Review B 102, 075121 (2020).
11. Kui Zhao#, Huaiyuan Liu#, Congwei Tan#, Jianfei Xiao, Jie Shen, Guangtong Liu, Hailin Peng*, Li Lu*, and Fanming Qu*, "Bi2O2Se nanowires presenting high mobility and strong spin–orbit coupling" Applied Physics Letters 121, 212104 (2022).
12. Ming-Li Liu#, Dong Pan#, Tian Le, Jiang-Bo He, Zhong-Mou Jia, Shang Zhu, Guang Yang, Zhao-Zheng Lyu, Guang-Tong Liu, Jie Shen, Jian-Hua Zhao*, Li Lu*, and Fan-Ming Qu*, “Gate-Tunable Negative Differential Conductance in Hybrid Semiconductor–Superconductor Devices” Chinese Physics Letters 40, 067301 (2023).
13. Jiangbo He#, Dong Pan#, Mingli Liu, Zhaozheng Lyu, Zhongmou Jia, Guang Yang, Shang Zhu, Guangtong Liu, Jie Shen, Sergey N. Shevchenko, Franco Nori*, Jianhua Zhao*, Li Lu* and Fanming Qu*, “Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions” npj Quantum Information 10, 1 (2024).
14. Huaiyuan Liu#, Jianfei Xiao#, Zhaozheng Lyu, Li Lv*, Fanming Qu*, "Growth of Bi2O2Se nanowires and their superconducting quantum interference devices" Acta Phys. Sin. 73, 047803 (2024).
15. Tian Le#, Ruihan Zhang#, Changcun Li, Ruiyang Jiang, Haohao Sheng, Linfeng Tu, Xuewei Cao, Zhaozheng Lyu, Jie Shen, Guangtong Liu, Fucai Liu*, Zhijun Wang*, Li Lu*, Fanming Qu*, "Magnetic field filtering of the boundary supercurrent in unconventional metal NiTe2-based Josephson junctions" Nature Communications 15, 2785 (2024).
16. Tian Le#, Ruiyang Jiang#, Linfeng Tu, Renji Bian, Yiwen Ma, Yunteng Shi, Ke Jia, Zhilin Li, Zhaozheng Lyu, Xuewei Cao, Jie Shen, Guangtong Liu, Youguo Shi, Fucai Liu, Yi Zhou, Li Lu*, Fanming Qu*，“Inverse-current quantum electro-oscillations in a charge density wave insulator” Physical Review B 109, 245123 (2024).
# Equal contribution; * Corresponding author.
Preprint:
arXiv:2303.05872 [Link]
arXiv:2303.05041 [Link]
arXiv:2303.02845 [Link]
arXiv:2303.00214 [Link]
arXiv:2302.08677 [Link]
Representative papers as co-authors:
1. J. Chen et.al., Physical Review Letters 105, 176602 (2010).
2. B.M. Nguyen et al., Physical Review Letters 117, 077701 (2016).
3. F. Nichele et al., Physical Review Letters 118, 016801 (2017).
4. F. de Vries et al., Physical Review Letters 120, 047702 (2018).
5. Y.Z. Chen et.al., Nature communications 4, 1 (2013).
6. J. Cui et al., Nature communications 10, 2044 (2019)
7. P.L. Li et al., Advanced Materials 31, 1904641 (2019).
8. F.C. Fei et al., Advanced Materials 30, 1801556 (2018).
9. Z.G. Chen et al., PNAS 114, 816 (2017).
10. Y. Deng et al., ACS Nano 15, 11526 (2021).
11. A. Wang et al., Nature Commnunications 14, 7647 (2023).
目前的研究课题及展望:
量子计算是当前国际上非常重要且非常有吸引力的领域，而与拓扑量子材料紧密相关的拓扑量子计算是具有独特优势的方向。量子计算很有可能在不久的将来给人类社会带来革命性影响。我们研究拓扑材料的低温物性，包括二维和三维拓扑绝缘体、外尔半金属等。基于强自旋轨道耦合体系，包括一维纳米线、二维量子阱材料和拓扑绝缘体材料，研究探索拓扑超导和马约拉纳费米子。构造拓扑量子器件，研究马约拉纳费米子的特殊融合规则和非阿贝尔统计性质，并制备拓扑量子比特，研究拓扑量子计算。
目前，实验室低温设备齐全，有从室温到2 K温区、30 K到0.3 K、30 K到10 mK和最低0.5 mK的多台制冷机。另外，我们拥有先进的电子束曝光、紫外曝光、电子束蒸发、热蒸发、磁控溅射、原子层沉积系统等设备，为研究所需的器件制备提供周全的保障，在国际上处于领先水平。本人得到中国科学院、国家基金委、科技部的经费支持，有科技部国家重点研发计划专项、中科院科研装备研制项目、先导专项、基金委面上项目、重点支持项目和科技创新2030项目的支持，将开展拓扑量子材料、物性与器件和拓扑量子计算的研究。
培养研究生情况:
正在培养博士生七名。已毕业五名博士、一名硕士。三名同学获得优秀奖，一名获得博士研究生国家奖学金。
每年拟招收硕博连读研究生或博士生1-2名，非常欢迎有科研热情的年轻人报考或推荐免试，同时欢迎博士后学者加入研究组。请有意向了解或加入研究组的同学通过邮件或电话直接联系，欢迎到研究组参观，很乐意沟通交流。
其他联系方式:
Email: fanmingqu@iphy.ac.cn
Email:
fanmingqu@iphy.ac.cn