title: Quantum critical end point for the Kondo volume collapse model.
abstract: The Kondo volume collapse describes valence transitions in f-electron metals and is characterized by a line of first order transitions in the pressure-temperature phase plane terminated at critical end points. We analyze the quantum critical end point, when the lower end point is tuned to T=0, and determine the specific heat, thermal expansion, and compressibility. We find that the inclusion of quantum critical fluctuations leads to a novel bifurcation of the first order phase line. Finally, we show that critical strain fluctuations can cause both, superconductivity and non-Fermi liquid behavior near the critical point.
authors.affiliation: Department of Physics and Astronomy, Iowa State University and Ames Laboratory, Ames, Iowa 50011, USA.
authors.forename: M
authors.initials: M
authors.lastname: Dzero
authors.forename: M R
authors.initials: MR
authors.lastname: Norman
authors.forename: I
authors.initials: I
authors.lastname: Paul
authors.forename: C
authors.initials: C
authors.lastname: Pépin
authors.forename: J
authors.initials: J
authors.lastname: Schmalian