Clarify the nature of the frustrated magnetic state near 75 K in CsCr6Sb6

Determine the microscopic nature of the frustrated magnetic state in CsCr6Sb6 that produces a kink in the temperature derivative of the resistivity near 75 K, beyond ruling out long-range magnetic order, and establish its relationship (if any) to the low-temperature Kondo hybridization.

Background

Transport shows an upturn in resistivity below ~85 K with a kink in dR/dT around 75 K, indicative of a frustrated magnetic transition; μSR indicates short-range magnetism.

The low-temperature Kondo hybridization signatures (50–65 K) occur at a distinctly lower temperature than the frustrated magnetism, suggesting they are not directly linked; however, the precise character of the magnetic state remains undetermined.

References

Although the nature of this magnetic state remains unclear and further investigations are required, previous studies suggest that long-range order can largely be ruled out.

— Mott-Derived Local Moments and Kondo Hybridization in a d-electron Kagome lattice  (2604.02922 - Zhang et al., 3 Apr 2026) in Discussion and Conclusion (context of transport and magnetic behavior)