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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