698 citations · 2.2k across the 44 of their papers we have counts for
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Violation of Wiedemann-Franz law at the Kondo breakdown quantum critical point
K. -S. Kim, C. Pépin
We study both the electrical and thermal transport near the heavy-fermion quantum critical point (QCP), identified with the breakdown of the Kondo effect as an orbital selective Mo…
Grüneisen ratio at the Kondo breakdown quantum critical point
K. -S. Kim, A. Benlagra, C. Pépin
We show that the scenario of multi-scale Kondo breakdown quantum critical point (QCP) gives rise to a divergent Grüneisen ratio with an anomalous exponent 0.7. In particular, we fi…
Multi-scale fluctuations near a Kondo Breakdown Quantum Critical Point
I. Paul, C. Pepin, M. R. Norman
We study the Kondo-Heisenberg model using a fermionic representation for the localized spins. The mean-field phase diagram exhibits a zero temperature quantum critical point separa…
Selective Mott transition and heavy fermions
C. Pepin
Starting with an extended version of the Anderson lattice where the f-electrons are allowed a weak dispersion, we examine the possibility of a Mott localization of the f-electrons,…