Evidence for charge delocalization crossover in the quantum critical superconductor CeRhIn.

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 E that signals a crossover from f-localized to f-delocalized character.

Study on superconducting properties of CeIrInthin films grown via pulsed laser deposition.

We report the growth of CeIrInthin films with different crystal orientations on a MgF(001) substrate using pulsed laser deposition technique. X-ray diffraction analysis showed that the thin films were either mainlyaxis-oriented (TF1) or a combination of- and-axis-oriented (TF2). The characteristic features of heavy-fermion superconductors, i.