Susceptibility inhomogeneity and non-Fermi-liquid behavior in Ce(Ru0.5Rh0.5)2Si2 -: art. no. 184401

被引：6
作者：
MacLaughlin, DE [1 ]
Bernal, OO
Sonier, JE
Heffner, RH
Taniguchi, T
Miyako, Y
机构：
[1] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA
[2] Calif State Univ Los Angeles, Dept Phys & Astron, Los Angeles, CA 90032 USA
[3] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[5] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 18期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.65.184401
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic susceptibility and muon spin rotation (muSR) experiments have been carried out to study the effect of structural disorder on the non-Fermi-liquid (NFL) behavior of the heavy-fermion alloy Ce(Ru0.5Rh0.5)(2)Si-2. Analysis of the bulk susceptibility in the framework of disorder-driven Griffiths-phase and Kondo-disorder models for NFL behavior yields relatively narrow distributions of characteristic spin-fluctuation energies, in agreement with muSR linewidths that give the inhomogeneous spread in susceptibility. muSR and NMR data both indicate that disorder explains the "nearly NFL" behavior observed above similar to2 K, but does not dominate the NFL physics found at low temperatures and low magnetic fields.
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页码：1 / 6
页数：6
相关论文
共 21 条
  • [1] Heavy-fermion systems studied by mu SR technique
    Amato, A
    [J]. REVIEWS OF MODERN PHYSICS, 1997, 69 (04) : 1119 - 1179
  • [2] Kondo disorder and non-Fermi-liquid behavior in UCu5-xPdx and CeCu5.9Au0.1
    Bernal, OO
    MacLaughlin, DE
    Amato, A
    Feyerherm, R
    Gygax, FN
    Schenck, A
    Heffner, RH
    Le, LP
    Nieuwenhuys, GJ
    Andraka, B
    vonLohneysen, H
    Stockert, O
    Ott, HR
    [J]. PHYSICAL REVIEW B, 1996, 54 (18): : 13000 - 13008
  • [3] COPPER NMR AND THERMODYNAMICS OF UCU5-XPDX - EVIDENCE FOR KONDO DISORDER
    BERNAL, OO
    MACLAUGHLIN, DE
    LUKEFAHR, HG
    ANDRAKA, B
    [J]. PHYSICAL REVIEW LETTERS, 1995, 75 (10) : 2023 - 2026
  • [4] Non-Fermi-liquid behavior in U and Ce alloys: Criticality, disorder, dissipation, and Griffiths-McCoy singularities
    Castro Neto, AH
    Jones, BA
    [J]. PHYSICAL REVIEW B, 2000, 62 (22) : 14975 - 15011
  • [5] COLEMAN P, 1996, J PHYS CONDENS MATTE, V8
  • [6] DEREOTIER PD, 1990, HYPERFINE INTERACT, V64, P457, DOI 10.1007/BF02396179
  • [7] Comparison of CeRh2Si2 and CeRh2-xRuxSi2 near their magnetic-nonmagnetic boundaries
    Graf, T
    Thompson, JD
    Hundley, MF
    Movshovich, R
    Fisk, Z
    Mandrus, D
    Fisher, RA
    Phillips, NE
    [J]. PHYSICAL REVIEW LETTERS, 1997, 78 (19) : 3769 - 3772
  • [8] Heffner RH, 2000, S MOD COND, V11, P147
  • [9] Neutron diffraction study on the magnetism of the Ce(Ru1-xRhx)(2)Si-2 mixed compound system
    Kawarazaki, S.
    Kobashi, Y.
    Fernandez-Baca, J. A.
    Murayama, S.
    Onuki, Y.
    Miyako, Y.
    [J]. PHYSICA B-CONDENSED MATTER, 1995, 206 : 298 - 300
  • [10] LANDAU LD, 1957, ZH EKSP TEOR FIZ, V3, P920
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