Evidence for non-Fermi liquid behavior in the Kondo alloy Y sub 1 minus x U sub x Pd sub 3

Journal Article · Mon Nov 11 00:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.2882· OSTI ID:6259627

Seaman, C L; Maple, M B; Lee, B W; Ghamaty, S ^[1]; Torikachvili, M S ^[2]; Kang, J; Liu, L Z; Allen, J W ^[3]; Cox, D L ^[4]

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1. Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, California (USA)
2. Department of Physics, San Diego State University, San Diego, California (USA)
3. Department of Physics, University of Michigan, Ann Arbor, Michigan (USA)
4. Department of Physics, The Ohio State University, Columbus, Ohio (USA)

We present measurements of electrical resitivity {rho}({ital T}), specific heat {ital C}({ital T}), entropy {ital S}({ital T}), and magnetic susceptibility {chi}({ital T}) as functions of temperature {ital T} for the alloy system Y{sub 1{minus}{ital x}}U{sub {ital x}}Pd{sub 3}. For {ital x}=0.2, {rho}({ital T})/{rho}(0) is almost linear in {ital T} for 0.2{le}{ital T}{le}20 K, and {ital C}({ital T})/{ital T}{similar to}{minus}ln({alpha}{ital T}) for 0.6{lt}{ital T}{lt}16 K. Also, the added molar entropy per {ital U}, {Delta}{ital S}({ital T}){minus}{Delta}{ital S}(0) appears to saturate to ({ital R}/2)ln(2), suggesting that {Delta}{ital S}(0){approx}({ital R}/2)ln(2). We argue that our data provide comprehensive evidence in a dilute alloy for the two-channel quadrupolar Kondo effect ({ital T}{sub {ital K}}{approx}42 K) with concomitant marginal Fermi liquid'' phenomenology.

• DOE Contract Number: FG03-86ER45230
• OSTI ID: 6259627
• Journal Information: Physical Review Letters; (United States), Vol. 67:20; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PALLADIUM ALLOYS
KONDO EFFECT
URANIUM ALLOYS
YTTRIUM ALLOYS
ELECTRIC CONDUCTIVITY
ENTROPY
MAGNETIC SUSCEPTIBILITY
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
TERNARY ALLOY SYSTEMS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
ELECTRICAL PROPERTIES
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
THERMODYNAMIC PROPERTIES
360104* - Metals & Alloys- Physical Properties