Topological Dirac quantum materials are a class of materials with special electronic band structures, in which electrons exhibit peculiar behaviors, such as the existence of Dirac fermion states with zero mass. These materials have potential applications in quantum computing and advanced electronics. Our research aims to experimentally reveal the physical properties of topological Dirac quantum materials, such as topological insulators and topological semimetals. This includes studying their electronic transport properties, topological phase transitions, quantum Hall effects, and exploring their potential applications in the field of quantum computing. We will focus on the quantum properties of these materials, surface states (edge states), and their coupling effects with the external environment, in order to provide new materials for the development of next-generation quantum information technology.
Selected works:
[1] S. Chen#, Pengliang Leng#, A. Konečná, E. Modin, M. Gutierrez-Amigo, E. Vicentini, B. Martín-García, M. Barra-Burillo, I. Niehues, C. Maciel Escudero, X. Y. Xie, L. E. Hueso, E. Artacho, J. Aizpurua, I. Errea, M. G. Vergniory, A. Chuvilin, Faxian Xiu* and R. Hillenbrand*,"Real-space observation of ultraconfined in-plane anisotropic acoustic terahertz plasmon polaritons", Nature Materials, 10.1038/s41563-023-01547-8(2023).
[2] Faxian Xiu,“Atomic heteroepitaxy for topological superconductivity”, Nature Materials 10.1038/s41563-023-01533-0 (2023).
[3] Cheng Zhang, Yi Zhang, Hai-Zhou Lu, X. C. Xie, Faxian Xiu*, “Cycling Fermi arc electrons with Weyl orbits”,Nature Reviews Physics 3, 660-670 (2021).
[4] Xiang Yuan#, Cheng Zhang#, Yi Zhang#, Zhongbo Yan, Tairu Lyu, Mengyao Zhang, Zhilin Li, Chaoyu Song, Minhao Zhao, Pengliang Leng, Mykhaylo Ozerov, Xiaolong Chen, Nanlin Wang, Yi Shi*, Hugen Yan*, Faxian Xiu*,“The discovery of dynamic chiral anomaly in a Weyl semimetal NbAs”, Nature Communications 11, 1259 (2020).
[5] Ce Huang#, Benjamin T. Zhou#, Huiqin Zhang, Bingjia Yang, Ran Liu, Hanwen Wang, Yimin Wan, Ke Huang, Zhiming Liao, Enze Zhang, Shanshan Liu, Qingsong Deng, Yanhui Chen, Xiaodong Han, Jin Zou, Xi Lin, Zheng Han, Yihua Wang, Kam Tuen Law, Faxian Xiu*, “Proximity induced surface superconductivity in Dirac semimetal Cd3As2”, Nature Communications 10, 2217 (2019).(Editors’ Highlight on Condensed-Matter Physics).
[6] Cheng Zhang#, Zhuoliang Ni#, Jinglei Zhang#, Xiang Yuan#, Yanwen Liu, Yichao Zou, Zhiming Liao, Yongping Du, Awadhesh Narayan, Hongming Zhang, Tiancheng Gu, Xuesong Zhu, Li Pi, Stefano Sanvito, Xiaodong Han, Jin Zou, Yi Shi, Xiangang Wan, Sergey Y. Savrasov and Faxian Xiu*, “Ultrahigh conductivity in Weyl semimetal NbAs nanobelts”, Nature Materials 18, 482–488 (2019)
[7] Cheng Zhang#, Yi Zhang#, Xiang Yuan#, Shiheng Lu, Jinglei Zhang, Awadhesh Narayan, Yanwen Liu, Huiqin Zhang, Zhuoliang Ni, Ran Liu, Eun Sang Choi, Alexey Suslov, Stefano Sanvito, Li Pi, Hai-Zhou Lu, Andrew C. Potter, Faxian Xiu*, “Quantum Hall effect based on Weyl orbits in Cd3As2”, Nature 565, 331–336 (2019).
[8] Xiang Yuan#, Zhongbo Yan#, Chaoyu Song#, Mengyao Zhang, Zhilin Li, Cheng Zhang, Yanwen Liu, Weiyi Wang, Minhao Zhao, Zefang Ye, Jiaxiang Wang, Jonathan Ludwig, Xiaoxing Zhang, Cui Shang, Zhengcai Xia, Dmitry Serminov, Xiaolong Chen, Zhong Wang, Hugen Yan*, Faxian Xiu#*, “Chiral Landau levels in Weyl semimetal NbAs with multiple topological carriers”, Nature Communications 9, 1854 (2018).
[9] Cheng Zhang, Awadhesh Narayan, Shiheng Lu, Jinglei Zhang, Xiang Yuan, Yanwen Liu, Ju-Hyun Park, Enze Zhang, Weiyi Wang, Shanshan Liu, Long Cheng, Li Pi, Zhigao Sheng, Stefano Sanvito, Faxian Xiu*,“Evolution of Weyl-orbit and quantum Hall effect in Dirac semimetal Cd3As2”, Nature Communications 8,1272 (2017).
[10] Cheng Zhang, Enze Zhang, Weiyi Wang, Yanwen Liu, Zhi-Gang Chen*, Shiheng Lu, Sihang Liang, Junzhi Cao, Xiang Yuan, Lei Tang, Qian Li, Chao Zhou, Teng Gu, Yizheng Wu, Jin Zou*, Faxian Xiu*, “Room-temperature chiral charge pumping in Dirac semimetal”, Nature Communications 8, 13741 (2017).
[11] Yanwen Liu, Xiang Yuan, Cheng Zhang, Zhao Jin, Awadhesh Narayan, Chen Luo, Zhigang Chen, Lei Yang, Jin Zou, Xing Wu, Stefano Sanvito, Zhengcai Xia, Liang Li, Zhong Wang, Faxian Xiu*, “Zeeman splitting and dynamical mass generation in Dirac semimetal ZrTe5”, Nature Communications 7, 12516 (2016).
[12] Junzhi Cao#, Sihang Liang#, Cheng Zhang#, Yanwen Liu, Junwei Huang, Zhao Jin, Zhi-Gang Chen, Zhijun Wang, Qisi Wang, Jun Zhao, Shiyan Li, Xi Dai, Jin Zou, Zhengcai Xia, Liang Li, Faxian Xiu*, “Landau level splitting in Cd3As2 under high magnetic fields”,Nature Communications 6, 7779 (2015).
[13] Faxian Xiu#*, Liang He#, Yong Wang#, Lina Cheng#, Li-Te Chang, Murong Lang, Guan Huang, Xufeng Kou, Yi Zhou, Xiaowei Jiang, Jin Zou, Alexandros Shailos, and Kang L. Wang.*, “Manipulating surface states in topological insulator nanoribbons”, Nature Nanotechnology 6, 216-221(2011). (1) Highlighted by UCLA newsroom, and reported by UCLA YouTube. (2) Highlighted by Nature Nanotechnology, News and Views by Professor Xue Qikun’s “Nanoelectronics: A topological twist for transistors”,Nature Nanotechnology 6, 197-198 (2011).
