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Inelastic x-ray scattering measurements of phonon dynamics in URu2Si2

Journal Article · · Physical Review B
We report high-resolution inelastic x-ray scattering measurements of the acoustic phonons of URu2Si2. At all temperatures, the longitudinal acoustic phonon linewidths are anomalously broad at small wave vectors revealing a previously unknown anharmonicity. The phonon modes do not change significantly upon cooling into the hidden order phase. Our data suggest that the increase in thermal conductivity in the hidden order phase cannot be driven by a change in phonon dispersions or lifetimes. Hence, the phonon contribution to the thermal conductivity is likely much less significant compared to that of the magnetic excitations in the low temperature phase.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1368071
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 7 Vol. 93; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

References (42)

Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2 journal January 2011
Superconducting and Magnetic Transitions in the Heavy-Fermion System U Ru 2 Si 2 journal December 1985
Observation of the Thermal Conductivity due to Spins in the One-Dimensional Antiferromagnetic Ising-Like Spin System A Co X 3 ( A = Rb, Cs; X = Cl, Br) journal June 2014
Phonon Lifetime Investigation of Anharmonicity and Thermal Conductivity of UO 2 by Neutron Scattering and Theory journal April 2013
Search for hidden orbital currents and observation of an activated ring of magnetic scattering in the heavy fermion superconductor URu 2 Si 2 journal April 2004
Magnetic excitations in the heavy-fermion superconductor URu 2 Si 2 journal June 1991
Lattice dynamics of the heavy-fermion compound URu 2 Si 2 journal January 2015
Gapped itinerant spin excitations account for missing entropy in the hidden-order state of URu2Si2 journal January 2007
Thermal Conductivity of Ho 2 Ti 2 O 7 along the [111] Direction journal May 2013
Magnetic heat transport in R 2 Cu O 4 ( R = La , Pr, Nd, Sm, Eu, and Gd) journal March 2006
Itinerant spin excitations near the hidden order transition in URu 2 Si 2 journal April 2009
Interplay between spin-density wave and induced local moments in URu 2 Si 2 journal July 2005
Neutron scattering studies on URu 2 Si 2 journal July 2014
Multipole order and global/site symmetry in the hidden-order phase of URu 2 Si 2 journal November 2014
Γ 3 -Type Lattice Instability and the Hidden Order of URu 2 Si 2 journal January 2013
Evidence for a large magnetic heat current in insulating layered cuprates journal May 2003
Modulated Spin Liquid: A New Paradigm for URu 2 Si 2 journal March 2011
Hidden order behaviour in URu 2 Si 2 (A critical review of the status of hidden order in 2014) journal May 2014
Neutron scattering study of URu 2 − x Re x Si 2 ( x = 0.10 ): Driving order towards quantum criticality journal December 2012
NMR Study of In-Plane Twofold Ordering in URu 2 Si 2 journal June 2013
Thermal Transport in the Hidden-Order State of URu 2 Si 2 journal April 2005
A Study of Elastic Properties of URu 2 Si 2 in Comparison with the Non-5 f Contribution of ThRu 2 Si 2 journal December 2012
Chirality density wave of the "hidden order" phase in URu2Si2 journal February 2015
Cyclotron resonance study of quasiparticle mass and scattering rate in the hidden-order and superconducting phases of URu 2 Si 2 journal December 2013
Hastatic order in the heavy-fermion compound URu2Si2 journal January 2013
Phonon Thermal Transport of URu 2 Si 2 : Broken Translational Symmetry and Strong-Coupling of the “Hidden Order” to the Lattice journal October 2006
Emergent rank-5 nematic order in URu2Si2 journal June 2012
Scattering of Neutrons by an Anharmonic Crystal journal December 1962
Hybridization Wave as the “Hidden Order” in URu 2 Si 2 journal February 2011
Elastic properties of the heavy fermion superconductor URu2Si2 journal February 1994
Imaging the Three-Dimensional Fermi-Surface Pairing near the Hidden-Order Transition in URu 2 Si 2 Using Angle-Resolved Photoemission Spectroscopy journal September 2013
Thermal expansion and specific heat of monocrystalline U Ru 2 Si 2 journal December 1986
Symmetry and correlations underlying hidden order in URu 2 Si 2 journal January 2015
Partially gapped Fermi surface in the heavy-electron superconductor URu 2 Si 2 journal January 1986
Hidden order in URu2Si2 originates from Fermi surface gapping induced by dynamic symmetry breaking journal February 2009
Colloquium : Hidden order, superconductivity, and magnetism: The unsolved case of URu 2 Si 2 journal November 2011
Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2 journal June 2014
Helicity Order: Hidden Order Parameter in URu 2 Si 2 journal January 2006
Magnetic phase transitions and magnetoelectric coupling of GdFe O 3 single crystals probed by low-temperature heat transport journal January 2011
Similarity of the Fermi Surface in the Hidden Order State and in the Antiferromagnetic State of URu 2 Si 2 journal November 2010
X-ray backscattering study of crystal lattice distortion in hidden order of URu 2 Si 2 journal September 2014
Cyclotron Resonance in the Hidden-Order Phase of URu 2 Si 2 journal July 2012

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Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu 2 Si 2 journal January 2020

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