Neutron Scattering Study of URu${}_{2-x}$Re${}_x$Si${}_2$ with $x$ = 0.10: Driving Order towards Quantum Criticality

Abstract

We report inelastic neutron scattering measurements in the hidden order state of URu${}_{2-x}$Re${}_x$Si${}_2$ with $x$ = 0.10. We observe that towards the ferromagnetic quantum critical point induced by the negative chemical pressure of Re-doping, the gapped incommensurate fluctuations are robust and comparable in intensity to the parent material. As the Re doping moves the system toward the quantum critical point, the commensurate spin fluctuations related to hidden order weaken, display a shortened lifetime and slow down. Halfway to the quantum critical point, the hidden order phase survives, albeit weakened, in contrast to its destruction by hydrostatic pressure and by positive chemical pressure from Rh-doping.

5 pages, 6 figures, 24 references

References in corpus (4)

• Imaging the Fano Lattice to 'Hidden Order' Transition in URu2Si2
• Gapped itinerant spin excitations account for missing entropy in the hidden order state of URu${}_2$Si${}_2$
• Evolution of critical scaling behavior near a ferromagnetic quantum phase transition
• The suppression of hidden order and onset of ferromagnetism in URu2Si2 via Re substitution

Cited by in corpus (4)

• Hidden order and beyond: an experimental-theoretical overview of the multifaceted behavior of URu${}_2$Si${}_2$
• Electronic properties of a heavy-fermion U(Ru0.92Rh0.08)2Si2 single crystal
• Optical study of hybridization and hidden order in URu${}_2$Si${}_2$
• Field-induced phases in a heavy-fermion U(Ru${}_{0.92}$Rh${}_{0.08}$)${}_2$Si${}_2$ single crystal