Document type:
Zeitschriftenaufsatz
Author(s):
Niklowitz, P. G.; Dunsiger, S. R.; Pfleiderer, C.; Link, P.; Schneidewind, A.; Faulhaber, E.; Vojta, M.; Huang, Y.-K.; Mydosh, J. A.
Title:
Role of Commensurate and Incommensurate Low-Energy Excitations in the Paramagnetic to Hidden-Order Transition of ${\mathrm{URu}}_{2}{\mathrm{Si}}_{2}$
Abstract:
We report low-energy inelastic neutron scattering data of the paramagnetic (PM) to hidden-order (HO) phase transition at T0=17.5K in URu2Si2. While confirming previous results for the HO and PM phases, our data reveal a pronounced wave-vector dependence of low-energy excitations across the phase transition. To analyze the energy scans we employ a damped harmonic oscillator model containing a fit parameter 1/$\Gamma$ which is expected to diverge at a second-order phase transition. Counter to expe...    »

Journal title:
Physical Review B
Year:
2015
Journal volume:
92
Month:
sep
Journal issue:
11
Pages contribution:
115116
Fulltext / DOI: