Speaker
Description
Phenomena and properties in pressurized high-Tc superconducting oxides
Liling Sun1,2
1.Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China
2.Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
The exploration of emerging phenomena and physics in high-temperature (Tc) superconducting materials from metal oxides has been a frontier topic in condensed matter physics. Particularly, the development of various experimental techniques has opened new opportunities to unravel key issues in this field. Given the nature of strong electron correlation and diverse degrees of freedom inherent in high-Tc superconducting materials, the application of pressure frequently unveils new insights. In this talk, I will report novel phenomena observed from our high-pressure investigations on high-Tc superconducting oxides. These include the pressure-induced crossover from two-dimensional to three-dimensional superconducting states [1] and quantum phase transitions [2] in bismuth-based cuprate superconductors; the pressure-induced superconducting-insulating phase transition in Ba1-xKxBiO3 bismuthates [3]; and signatures of a Lifshitz transition in pressurized electron-doped cuprate [4].
- These woks were in collaboration with GD Gu, CT Lin, SL Li, Q Wu, XJ Zhou, T Xiang.
References：
[1] J Guo and L Sun et al, Nature Physics 16. 295 (2020).
[2] YZ Zhou and L Sun et al, Nature Physics 18, 406 (2022).
[3] JY Han and L Sun et al, Phys. Rev. B 111, L020509 (2025).
[4] JY Zhao and L Sun et al, arXiv 2025
| Field of Condensed Matter | Superconductivity |
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