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TT: Fachverband Tiefe Temperaturen

TT 93: Superconductivity – Poster II

TT 93.17: Poster

Donnerstag, 12. März 2026, 18:00–20:00, P4

High pressure magnetic measurements in Cr- and U- based superconductors — •Meghan Moody¹, Ran Tao¹, Mads Hansen¹, Callum Stevens², Zheyu Wu¹, Theodore Weinberger¹, Andrej Cabala³, Michal Vališka³, Vladimir Sechovský³, Andrew Huxley², Alexander Eaton¹, and Malte Grosche¹ — ¹Cavendish Laboratory, University of Cambridge, UK — ²School of Physics and Astronomy, University of Edinburgh, UK — ³Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

Mapping the high pressure phase diagram of unconventional superconductors can provide new insights into the nature of their superconducting and magnetic states. We present recent high pressure magnetic susceptibility and SQUID magnetisation measurements in d- and f-electron superconductors, focusing on the Cr-based Kagomé system CsCr₃Sb₅ and the field-resilient U-based superconductor UTe₂. In the former, antiferromagnetic order is suppressed under pressure, giving way to a superconducting dome that peaks around 7 K at 4 GPa. In the latter, the superconducting transition line bifurcates at a moderate pressure of about 0.3 GPa, above which two transitions are observed in susceptibility and heat capacity measurements.

Keywords: High pressure; Superconductivity; Quantum phase transitions