賈遜
- 類別: 特聘青年研究員
- 研究方向:
量子材料中有序態(tài)和相應(yīng)元激發(fā)及其之間的相互作用是凝聚態(tài)物理中最為重要的研究領(lǐng)域之一,而將多尺度的研究方法(實空間、動量空間、能量空間、時間)相互結(jié)合有助于加深或擴展對不同體系的認識。賈遜的研究方向主要集中在以下兩個方面:
1. 利用多種非彈性散射技術(shù)研究量子材料中的玻色型元激發(fā)及其相互作用(動量空間、能量空間);
2. 利用多種時間分辨手段研究量子材料中有序態(tài)/元激發(fā)的超快動力學(xué)過程(時間、動量空間)。
- 學(xué)歷: 博士研究生
- Email: jiaxun@ihep.ac.cn
- 地址: 北京市石景山區(qū)玉泉路19號乙高能所報告廳406
- 郵編: 100049
2014年在東南大學(xué)物理系應(yīng)用物理學(xué)專業(yè)獲得理學(xué)學(xué)士學(xué)位;2019年在中國科學(xué)院物理研究所獲得理學(xué)博士學(xué)位;同年9月赴美國阿貢國家實驗室(Argonne National Laboratory)從事博士后研究至2022年11月;2023年4月入職中國科學(xué)院高能物理研究所多學(xué)科研究中心任特聘青年研究員,博士生導(dǎo)師。
1. 在中科院物理所學(xué)習(xí)期間,深度參與了世界首臺二維高分辨率電子能量損失譜儀(HREELS)的早期調(diào)試與部分改進工作。依托該譜儀,在實驗上觀測到三維拓撲絕緣體Bi2Se3中來源于拓撲表面態(tài)的聲學(xué)支等離激元以及在第二類拓撲半金屬MoTe2中觀測到帶間耦合主導(dǎo)產(chǎn)生的等離激元。對帶間耦合的研究為后續(xù)拓撲半金屬(例如拓撲節(jié)線半金屬ZrSiS家族)中的等離激元研究提供了思路;
2. 在阿貢實驗室工作期間,1)利用硬X射線RIXS、meV-resolved IXS技術(shù)研究量子材料中軌道、自旋、電荷和晶格的元激發(fā)并參與了APS RIXS線站時間分辨RIXS技術(shù)的開發(fā);2)利用XFEL技術(shù)研究量子材料中有序態(tài)的超快動力學(xué)過程(進行中)
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)