Muon spin relaxation studies of magnetic order in Y[sub 1[minus][ital x]]U[sub [ital x]]Pd[sub 3] and UPd[sub 4]

Journal Article · Mon Jun 06 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3722· OSTI ID:7114852

Wu, W D; Keren, A; Le, L P; Luke, G M; Sternlieb, B J; Uemura, Y J ^[1]; Seaman, C L; Dalichaouch, Y; Maple, M B ^[2]

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1. Department of Physics, Columbia University, New York, New York 10027 (United States)
2. Department of Physics and Institute for Pure and Applied Physical Sciences, University of California San Diego, La Jolla, California 92093 (United States)

We have performed muon spin relaxation ([mu]SR) measurements of polycrystalline specimens of Y[sub 1[minus][ital x]]U[sub [ital x]]Pd[sub 3] with [ital x]=0.1, 0.2, 0.4, and UPd[sub 4]. We demonstrate that UPd[sub 4] and Y[sub 0.6]U[sub 0.4]Pd[sub 3] exhibit spin glass order, while the predominant volume fraction remains nonmagnetic at [ital T][r arrow]0 in Y[sub 0.8]U[sub 0.2]Pd[sub 3] and the muon spin relaxation rate becomes even smaller in Y[sub 0.9]U[sub 0.1]Pd[sub 3], indicating the disappearance of magnetic order with decreasing U concentration [ital x]. These results are discussed in terms of the competition between the crystalline electric field splitting [Delta][sub CEF] and the exchange coupling [ital J].

• DOE Contract Number: FG03-86ER45230
• OSTI ID: 7114852
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:23; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360107* -- Metals & Alloys-- Superconducting Properties-- (1992-)
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
CRYSTAL FIELD
CRYSTALS
EXCHANGE INTERACTIONS
INTERACTIONS
MAGNETIC PROPERTIES
MUON SPIN RELAXATION
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
POLYCRYSTALS
RELAXATION
SPIN GLASS STATE
TERNARY ALLOY SYSTEMS
URANIUM ALLOYS
YTTRIUM ALLOYS