Quantum critical scaling and the origin of non-fermi-liquid behavior in Sc1-xUxPd3

Stephen D. Wilson; Pengcheng Dai; D. T. Adroja; S. H. Lee; J. H. Chung; J. W. Lynn; N. P. Butch; M. B. Maple

doi:10.1103/PhysRevLett.94.056402

Quantum critical scaling and the origin of non-fermi-liquid behavior in Sc_1-xU_xPd₃

Stephen D. Wilson^*, Pengcheng Dai, D. T. Adroja, S. H. Lee, J. H. Chung, J. W. Lynn, N. P. Butch, M. B. Maple

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

We used inelastic neutron scattering to study magnetic excitations of Sc_1-xU_xPd₃ for U concentrations (x = 0.25, 0.35) near the spin glass quantum critical point (QCP). The excitations are spatially incoherent, broad in energy (E = hω), and follow ω/T scaling at all wave vectors investigated. Since similar ω/T scaling has been observed for UCu_5-xPd_x and CeCu_6-xAu _x near the antiferromagnetic QCP, we argue that the observed non-Fermi-liquid behavior in these f-electron materials arises from the critical phenomena near a T = 0 K phase transition, irrespective of the nature of the transition.

Original language	English
Article number	056402
Journal	Physical review letters
Volume	94
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.94.056402
Publication status	Published - 2005 Feb 11
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Quantum critical scaling and the origin of non-fermi-liquid behavior in Sc1-xUxPd3",

abstract = "We used inelastic neutron scattering to study magnetic excitations of Sc1-xUxPd3 for U concentrations (x = 0.25, 0.35) near the spin glass quantum critical point (QCP). The excitations are spatially incoherent, broad in energy (E = hω), and follow ω/T scaling at all wave vectors investigated. Since similar ω/T scaling has been observed for UCu5-xPdx and CeCu6-xAu x near the antiferromagnetic QCP, we argue that the observed non-Fermi-liquid behavior in these f-electron materials arises from the critical phenomena near a T = 0 K phase transition, irrespective of the nature of the transition.",

author = "Wilson, \{Stephen D.\} and Pengcheng Dai and Adroja, \{D. T.\} and Lee, \{S. H.\} and Chung, \{J. H.\} and Lynn, \{J. W.\} and Butch, \{N. P.\} and Maple, \{M. B.\}",

year = "2005",

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doi = "10.1103/PhysRevLett.94.056402",

language = "English",

volume = "94",

journal = "Physical review letters",

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TY - JOUR

T1 - Quantum critical scaling and the origin of non-fermi-liquid behavior in Sc1-xUxPd3

AU - Wilson, Stephen D.

AU - Dai, Pengcheng

AU - Adroja, D. T.

AU - Lee, S. H.

AU - Chung, J. H.

AU - Lynn, J. W.

AU - Butch, N. P.

AU - Maple, M. B.

PY - 2005/2/11

Y1 - 2005/2/11

N2 - We used inelastic neutron scattering to study magnetic excitations of Sc1-xUxPd3 for U concentrations (x = 0.25, 0.35) near the spin glass quantum critical point (QCP). The excitations are spatially incoherent, broad in energy (E = hω), and follow ω/T scaling at all wave vectors investigated. Since similar ω/T scaling has been observed for UCu5-xPdx and CeCu6-xAu x near the antiferromagnetic QCP, we argue that the observed non-Fermi-liquid behavior in these f-electron materials arises from the critical phenomena near a T = 0 K phase transition, irrespective of the nature of the transition.

AB - We used inelastic neutron scattering to study magnetic excitations of Sc1-xUxPd3 for U concentrations (x = 0.25, 0.35) near the spin glass quantum critical point (QCP). The excitations are spatially incoherent, broad in energy (E = hω), and follow ω/T scaling at all wave vectors investigated. Since similar ω/T scaling has been observed for UCu5-xPdx and CeCu6-xAu x near the antiferromagnetic QCP, we argue that the observed non-Fermi-liquid behavior in these f-electron materials arises from the critical phenomena near a T = 0 K phase transition, irrespective of the nature of the transition.

UR - https://www.scopus.com/pages/publications/18144387233

U2 - 10.1103/PhysRevLett.94.056402

DO - 10.1103/PhysRevLett.94.056402

M3 - Article

AN - SCOPUS:18144387233

SN - 0031-9007

VL - 94

JO - Physical review letters

JF - Physical review letters

IS - 5

M1 - 056402

ER -

Quantum critical scaling and the origin of non-fermi-liquid behavior in Sc_1-xU_xPd₃

Abstract

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