本申请针对重点支持项目--“（7）强磁场下（≥20T）的关联体系材料的物性研究”提出，结合强磁场和超高压极端条件开展超导电性及相关物理性质研究。我们拟开展三个方面的研究内容：（1）结合强磁场和超高压条件研究拓扑超导电性，在Bi2Se3，Cd3As2，YbB6等拓扑绝缘体材料的基础上，通过施加超高压和插层，掺杂等调控手段探索潜在的拓扑超导材料，并利用量子振荡效应对其费米面行为和拓扑性质进行表征；（2）结合强磁场和超高压压制一些具有反铁磁序的关联电子材料的反铁磁序，研究在这些材料中可能出现的超导电性，及相关的奇异现象；（3）结合强磁场和超高压研究铁基超导体和其它超导材料的量子振荡效应，测定其费米面形状，分析其配对对称性。通过本项目的研究，预期在拓扑超导电性、新超导材料探索及超导机理方面得到一些有意义的结果。

This project is based on the key project--"(7) Study on the physical properties of correlated system materials under high magnetic field (≥20T)". We propose to study the superconducting properties of correlated system materials using the extreme experimental conditions by combining high magnetic field and high pressure facilities. We plan to perform three kinds of work: (1) The study of topological superconductivity under high magnetic field and high pressure. We will explore the possible existence of topological superconducting materials by turning the physical properties of topological insulating materials such as Bi2Se3, Cd3As2, and YbB6 using intercalation/doping as well as applying high pressure. And we will investigate the evolution of the Fermi surface and topological properties by using the quantum oscillation experiments; (2) The investigation of possible emergence of superconductivity of some antiferromagnetic-ordered correlated electron materials when their antiferromagnetic orders are suppressed by high magnetic field and high pressure. And the investigation of other related exotic phenomena; (3) The study of the quantum oscillation effects of iron-based superconductors and other superconducting materials under high magnetic field and high pressure. We will determine their Fermi surface topology and analyze their pairing symmetry. It is hopeful to obtain valuable results in the topological superconductivity，exploration of new superconductors, and the superconducting mechanisms based on this project.