Pressure-Tuned Anomalous Magnetotransport in Kagome Superconductor CsCr₃Sb₅ at Low Temperature

Author: Wang, Wenyan

Affiliation: The Chinese University of Hong Kong

Type: Poster

Display Dates: 22.07.2026 - 23.07.2026

Board: WT-045

CsCrSb, a unique kagome superconductor exhibiting clear characteristics of strong electronic correlations, has attracted significant attention. Its rich temperature-pressure phase diagram hosts intertwined orders, including two density-wave-like phases and pressure-induced superconductivity, positioning it as an ideal platform to investigate the intricate interplay between coexisting and competing quantum orders. At approximately 30 K-the temperature we denote as T-a possible anomaly appears as a hump in resistivity, though its origin remains largely unexplored due to limited corroborating evidence from other experimental probes. In this work, we performed systematic magnetotransport measurements under hydrostatic pressure to elucidate the nature of this anomaly. Our results reveal a wealth of intriguing magnetotransport signatures below T, including a nontrivial temperature dependence of the Hall coefficient, multi-band characteristics, and pressure-enhanced anomalous-Hall-like effect. Notably, these features resemble those observed in the charge-density-wave state in its sister compound CsVSb. Our findings suggest the possibility of an additional, exotic electronic order in CsCrSb, motivating further comprehensive investigations.