Nonlinear susceptibility: A direct test of the quadrupolar Kondo effect in UBe[sub 13]

Journal Article · Mon Nov 28 04:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.3018· OSTI ID:6740862

Ramirez, A P; Chandra, P; Coleman, P; Fisk, Z; Smith, J L; Ott, H R ^[1]

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1. AT T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974 (United States) NEC Research Institute, 4 Independence Way, Princeton, New Jersey 08540 (United States) Serin Physics Laboratory, Rutgers University, P.O. Box 849, Piscataway, New Jersey 08854 (United States) Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States) Eidgenoessische Technische Hochschule, ETH-Hoenggerberg, CH-8093 Zuerich (Switzerland)

We present the nonlinear susceptibility as a direct test of the quadrupolar Kondo scenario for heavy fermion behavior, and apply it to the case of cubic crystal-field symmetry. Within a single-ion model we compute the nonlinear susceptibility resulting from low-lying [Gamma][sub 3] (5[ital f][sup 2]) and Kramers (5[ital f][sup 3]) doublets. We find that nonlinear susceptibility measurements on single-crystal UBe[sub 13] are [ital inconsistent] with a quadrupolar (5[ital f][sup 2]) ground state of the uranium ion; the experimental data indicate that the low-lying magnetic excitations of UBe[sub 13] are predominantly [ital dipolar] in character.

• OSTI ID: 6740862
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:22; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
BERYLLIUM ALLOYS
BINARY ALLOY SYSTEMS
CHARGED PARTICLES
ENERGY LEVELS
GROUND STATES
INTERMETALLIC COMPOUNDS
IONS
KONDO EFFECT
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
URANIUM ALLOYS
URANIUM IONS