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个人信息：Personal Information
教授
硕士生导师
教师拼音名称：Li Si
电子邮箱：
办公地点：西北大学长安校区物理楼422
性别：男
职称：教授
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本人研究方向为凝聚态理论和计算物理，研究兴趣主要包括：
（1）拓扑量子态及材料计算研究，如拓扑绝缘体，拓扑半金属等。
（2）新型低维量子材料的物性研究，如石墨烯，硅烯，过渡金属硫族化合物及二维磁性材料等。低维材料在纳米电子学，自旋电子学和能谷电子学等方面具有广泛的应用潜力。
（3）量子输运性质的研究，如反常霍尔效应，自旋霍尔效应，介观材料和拓扑材料在外场下的输运等。
研究方法主要为第一性原理计算（如VASP，Wien2k和Wannier90等）、能带对称性分析、紧束缚模型、低能有效模型、格林函数方法等各种理论和数值技术。
- [41] Jin-Yang Li, An-Dong Fan, Yong-Kun Wang, Ying Zhang, and Si Li, "Strain-induced valley polarization, topological states, and piezomagnetism in two-dimensional altermagnetic V2Te2O, V2STeO, V2SSeO, and V2S2O," Appl. Phys. Lett. 125, 222404 (2024).
- [40] Mengtong Yang, Xiaoyan Miao, Si Li, Jian Zhou, and Chunmei Zhang, "Driving and detecting topological phase transition in noncentrosymmetric systems via an all-optical approach," Phys. Rev. B 109, 125101 (2024).
- [39] Zhiqiang Tian, Jin-Yang Li, Tao Ouyang, Chao-Fei Liu, Ziran Liu, Si Li, Anlian Pan, Mingxing Chen, "Doping induced multiferroicity and quantum anomalous Hall effect in α-In2Se3 thin films," Appl. Phys. Lett. 124 , 043101 (2024).
- [38] Jin-Yang Li, Xin-Yue Kang, Ying Zhang, Si Li, Yugui Yao, "Two-dimensional quadratic Weyl point, nodal loop, and spin-orbit Dirac point in monolayers PtS, PtSe, and PtTe," Phys. Chem. Chem. Phys., 26, 4159-4165 (2024).
- [37] Xin-Yue Kang, Jin-Yang Li, and Si Li, "Straight and twisted Weyl nodal line phonons in Ho2CF2 material," Chin. Phys. B 32, 116301 (2023).
- [36] Xin-Yue Kang, Jin-Yang Li, and Si Li, "Multiple types of unconventional quasiparticles in the chiral crystal CsBe2F5," Phys. Rev. B 108, 125127 (2023).