Evidence for charge delocalization crossover in the quantum critical superconductor CeRhIn5
Honghong Wang,
Tae Beom Park,
Jihyun Kim
et al.
Abstract:The nature of charge degrees-of-freedom distinguishes scenarios for interpreting the character of a second order magnetic transition at zero temperature, that is, a magnetic quantum critical point (QCP). Heavy-fermion systems are prototypes of this paradigm, and in those, the relevant question is where, relative to a magnetic QCP, does the Kondo effect delocalize their f-electron degrees-of-freedom. Herein, we use pressure-dependent Hall measurements to identify a finite-temperature scale Eloc that signals a c… Show more
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