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.

arXiv comment5 pages, 6 figures, 24 references

References in corpus (8)

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Cited by in corpus (7)

• Hidden order and beyond: an experimental-theoretical overview of the multifaceted behavior of URu${}_2$Si${}_2$
• Symmetry and correlations underlying Hidden Order in URu2Si2
• Hidden Order Signatures in the Antiferromagnetic Phase of U(Ru${}_{1-x}$Fe${}_x$)${}_2$Si${}_2$
• Electronic properties of a heavy-fermion U(Ru0.92Rh0.08)2Si2 single crystal
• Inelastic x-ray scattering measurements on URu2Si2
• 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