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Chin. Phys. B, 2025, Vol. 34(4): 047403    DOI: 10.1088/1674-1056/adb26e
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Superconductivity in titanium probed by AC magnetic susceptibility to 120 GPa

Jing Song(宋静)1,†, Hongyu Liu(刘红玉)1,2, Xiancheng Wang(望贤成)1, and Changqing Jin(靳常青)1,2,‡
1 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
Abstract  We used a highly sensitive AC magnetic susceptibility technique to probe superconductivity in elemental titanium (Ti) under extreme pressures to 120 GPa in a diamond anvil cell (DAC). The measurements reveal that the critical temperature (Tc) of Ti rises monotonically with increasing pressure, reaching 6.1 K at 120 GPa. Our results confirm the bulk nature of the superconductivity in Ti, as evidenced by a robust diamagnetic response in the AC magnetic susceptibility. Our work provides a routine technique to probe Meissner effect of elemental superconductors at megabar pressures.
Keywords:  superconductivity      high pressure      susceptibility  
Received:  27 December 2024      Revised:  23 January 2025      Accepted manuscript online:  05 February 2025
PACS:  74.25.Dw (Superconductivity phase diagrams)  
  74.62.Fj (Effects of pressure)  
  07.55.Jg (Magnetometers for susceptibility, magnetic moment, and magnetization measurements)  
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2023YFA1406000) and the National Natural Science Foundation of China (Grant No. 12204514).
Corresponding Authors:  Jing Song, Changqing Jin     E-mail:  jingsong@iphy.ac.cn;jin@iphy.ac.cn

Cite this article: 

Jing Song(宋静), Hongyu Liu(刘红玉), Xiancheng Wang(望贤成), and Changqing Jin(靳常青) Superconductivity in titanium probed by AC magnetic susceptibility to 120 GPa 2025 Chin. Phys. B 34 047403

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