Static magnetic ordering of CeCu/sub 2. 1/Si/sub 2/ found by muon spin relaxation

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5161876

Uemura, Y J; Kossler, W J; Yu, X H; Schone, H E; Kempton, J R; Stronach, C E; Barth, S; Gygax, F N; Hitti, B; Schenck, A; Baines, C; Lankford, W F; Onuki, Y; Komatsubara, T

Zero- and longitudinal-field muon spin relaxation measurements on a poly-crystal sample of a heavy-fermion superconductor CeCu/sub 2.1/Si/sub 2/ (T/sub c/ = 0.7 K) have revealed an onset of static magnetic ordering below T )approximately) 0.8 K. The line shapes of the observed spectra in zero field indicate a wide distribution of static random local fields at muon sites, suggesting that the ordering is either spin glass or incommensurate spin-density-wave state. The observed width of the random local field at T = 0.05 K corresponds to a small averaged static moment of the order of 0.1 ..mu../sub B/ per formula unit.

• Research Organization: Brookhaven National Lab., Upton, NY (USA); College of William and Mary, Williamsburg, VA (USA). Dept. of Physics; Virginia State Univ., Petersburg (USA); Eidgenoessische Technische Hochschule, Zurich (Switzerland). Inst. for Intermediate Energy Physics; Paul Scherer Inst. (PSI), Villigen (Switzerland); George Mason Univ., Fairfax, VA (USA); Tsukuba Univ., Sakura, Ibaraki (Japan). Inst. of Materials Science
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5161876
• Report Number(s): BNL-41035; CONF-880206-5; ON: DE88007963
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
656100 -- Condensed Matter Physics-- Superconductivity
74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERIUM COMPOUNDS
FERMIONS
MAGNETIC PROPERTIES
MUON SPIN RELAXATION
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RELAXATION
SUPERCONDUCTORS