Magnetic oscillations in the heavy-fermion superconductor UBe[sub 13]

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.658· OSTI ID:5439184

Schmiedeshoff, G M ^[1]; Fisk, Z; Smith, J L ^[2]

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1. Department of Physics, Occidental College, Los Angeles, California 90041 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We present measurements of the magnetic torque acting upon a single crystal of UBe[sub 13], measurements made with a capacitive magnetometer. We observe pronounced magnetic oscillations in the torque resulting from the de Haas--van Alphen effect. A conventional analysis reveals that these oscillations result from light fermions'' with an effective mass [ital m][sup *]=0.017[ital m][sub [ital e]] ([ital m][sub [ital e]] is the bare electron mass). The Fermi surface associated with these light quasiparticles is anisotropic. We present arguments that these oscillations represent an intrinsic phenomenon and compare our results with those of other groups.

• OSTI ID: 5439184
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:1; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360107* -- Metals & Alloys-- Superconducting Properties-- (1992-)
ACTINIDE ALLOYS
ALLOYS
BERYLLIUM ALLOYS
CRYSTALS
DE HAAS-VAN ALPHEN EFFECT
EFFECTIVE MASS
ENERGY LEVELS
FERMI LEVEL
INTERMETALLIC COMPOUNDS
MAGNETIC PROPERTIES
MAGNETOSTRICTION
MASS
MONOCRYSTALS
PHYSICAL PROPERTIES
TORQUE
URANIUM ALLOYS