title: Irreversible dynamics of the phase boundary in U(Ru0.96Rh0.04)2Si2 and implications for ordering.
abstract: We report measurements and analysis of the specific heat and magnetocaloric effect-induced temperature changes at the phase boundary into the single magnetic field-induced phase (phase II) of U(Ru0.96Rh0.04)2Si2, which yield irreversible properties similar to those at the valence transition of Yb(1-x)Y(x)InCu4. To explain these similarities, we propose a bootstrap mechanism by which lattice parameter changes caused by an electric quadrupolar order parameter within phase II become coupled to the 5f-electron hybridization, giving rise to a valence change at the transition.
authors.affiliation: National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA.
authors.forename: A V
authors.initials: AV
authors.lastname: Silhanek
authors.forename: M
authors.initials: M
authors.lastname: Jaime
authors.forename: N
authors.initials: N
authors.lastname: Harrison
authors.forename: V R
authors.initials: VR
authors.lastname: Fanelli
authors.forename: C D
authors.initials: CD
authors.lastname: Batista
authors.forename: H
authors.initials: H
authors.lastname: Amitsuka
authors.forename: S
authors.initials: S
authors.lastname: Nakatsuji
authors.forename: L
authors.initials: L
authors.lastname: Balicas
authors.forename: K H
authors.initials: KH
authors.lastname: Kim
authors.forename: Z
authors.initials: Z
authors.lastname: Fisk
authors.forename: J L
authors.initials: JL
authors.lastname: Sarrao
authors.forename: L
authors.initials: L
authors.lastname: Civale
authors.forename: J A
authors.initials: JA
authors.lastname: Mydosh