贾逊
- 类别: 特聘青年研究员
- 研究方向:
量子材料中有序态和相应元激发及其之间的相互作用是凝聚态物理中最为重要的研究领域之一,而将多尺度的研究方法(实空间、动量空间、能量空间、时间)相互结合有助于加深或扩展对不同体系的认识。贾逊的研究方向主要集中在以下两个方面:
1. 利用多种非弹性散射技术研究量子材料中的玻色型元激发及其相互作用(动量空间、能量空间);
2. 利用多种时间分辨手段研究量子材料中有序态/元激发的超快动力学过程(时间、动量空间)。
- 学历: 博士研究生
- Email: jiaxun@ihep.ac.cn
- 地址: 北京市石景山区玉泉路19号乙高能所报告厅406
- 邮编: 100049
2014年在东南大学物理系应用物理学专业获得理学学士学位;2019年在中国科学院物理研究所获得理学博士学位;同年9月赴美国阿贡国家实验室(Argonne National Laboratory)从事博士后研究至2022年11月;2023年4月入职中国科学院高能物理研究所多学科研究中心任特聘青年研究员,博士生导师。
1. 在中科院物理所学习期间,深度参与了世界首台二维高分辨率电子能量损失谱仪(HREELS)的早期调试与部分改进工作。依托该谱仪,在实验上观测到三维拓扑绝缘体Bi2Se3中来源于拓扑表面态的声学支等离激元以及在第二类拓扑半金属MoTe2中观测到带间耦合主导产生的等离激元。对带间耦合的研究为后续拓扑半金属(例如拓扑节线半金属ZrSiS家族)中的等离激元研究提供了思路;
2. 在阿贡实验室工作期间,1)利用硬X射线RIXS、meV-resolved IXS技术研究量子材料中轨道、自旋、电荷和晶格的元激发并参与了APS RIXS线站时间分辨RIXS技术的开发;2)利用XFEL技术研究量子材料中有序态的超快动力学过程(进行中)
1. Xun Jia, Maoyuan Wang, Dayu Yan, Siwei Xue, Shuyuan Zhang, Jianhui Zhou, Youguo Shi, Xuetao Zhu, Yugui Yao, Jiandong Guo. Topologically Nontrivial Interband Plasmons in Type-II Weyl Semimetal MoTe2. New Journal of Physics, 22 103032 (2020)
2. Xun Jia, Shuyuan Zhang, Raman Sankar, Fang-Cheng Chou, Weihua Wang, K. Kempa, E. W. Plummer, Jiandi Zhang, Xuetao Zhu, and Jiandong Guo. Anomalous acoustic plasmon mode from topologically protected states. Physical Review Letters 119, 136805 (2017)
3. Siwei Xue, Maoyuan Wang, Yong Li, Shuyuan Zhang, Xun Jia, Jianhui Zhou, Youguo Shi, Xuetao Zhu, Yugui Yao, and Jiandong Guo. Observation of Nodal-Line Plasmons in ZrSiS. Physical Review Letters 127, 186802 (2021) (Editors' Suggestion)
4. Siwei Xue, Tiantian Zhang, Changjiang Yi, Shuyuan Zhang, Xun Jia, Luiz H. Santos, Chen Fang, Youguo Shi, Xuetao Zhu, and Jiandong Guo. Electron-phonon coupling and Kohn anomaly due to floating two-dimensional electronic bands on the surface of ZrSiS. Physical Review B 100, 195409 (2019) (Editors' Suggestion)
5. Shuyuan Zhang, Jiaqi Guan, Yan Wang, Tom Berlijn, Steve Johnston, Xun Jia, Bing Liu, Qing Zhu, Qichang An, Siwei Xue, Yanwei Cao, Fang Yang, Weihua Wang, Jiandi Zhang, E. W. Plummer, Xuetao Zhu, and Jiandong Guo. Lattice Dynamics of Ultrathin FeSe Films on SrTiO3. Physical Review B 97, 035408 (2018)
6. Jiaqi Guan, Xiaochun Huang, Xiaofeng Xu, Shuyuan Zhang, Xun Jia, Xuetao Zhu, Weihua Wang, Jiandong Guo. Superstructures at Te/Au (111) interface evolving upon increasing Te coverage.
Surface Science 669, 198–203 (2018)
7. Shuyuan Zhang, Jiaqi Guan, Xun Jia, Bing Liu, Weihua Wang, Fangsen Li, Lili Wang, Xucun Ma, Qikun Xue, Jiandi Zhang, E. W. Plummer, Xuetao Zhu, and Jiandong Guo. Role of SrTiO3 phonon penetrating into thin FeSe films in the enhancement of superconductivity. Physical Review B 94, 081116(R) (2016)
8. Xuetao Zhu, Yanwei Cao, Shuyuan Zhang, Xun Jia, Qinlin Guo, Fang Yang, Linfan Zhu, Jiandi Zhang, E. W. Plummer, and Jiandong Guo. High resolution electron energy loss spectroscopy with two-dimensional energy and momentum mapping. Review of Scientific Instruments 86, 083902 (2015)
To be submitted / Under Review:
9. Xun Jia, Anubhab Haldar, Jungho Kim, Yilin Wang, Gilberto Fabbris, Karl Ludwig, Stefanos Kourtis, Yu Liu, Wenjian Lu, Yu-Ping Sun, Diego Casa, Sahar Sharifzadeh, Pierre Darancet, Yue Cao. Interplay of broken symmetry and delocalized excitations in the insulating state of 1T-TaS2. arXiv:2210.01181 (2022) / Phys. Rev. X under review (2023)
10. Peter Siegfried, Hari Bhandari, Madhav P. Ghimire, Xun Jia, Fanny Rodolakis, Jessica L. McChesney, Makoto Hashimoto, Donghui Lu, Eleni P. Kyriazi, Serena M. Birnbaum, Shalinee Chikara, SuvadipDas, Roxanne M. Tutchton, Yue Cao, John Singleton, I. I. Mazin, and Nirmal J. Ghimire. Large anomalous Hall conductivity in the 3D kagome magnet YMn6Sn6. Manuscript to be submitted (2023)