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Title: Crossover from non-Fermi-liquid to Fermi-liquid behavior in the magnetoresistivity of U{sub 0.9}Th{sub 0.1}Be{sub 13}

Abstract

We have measured the temperature T and magnetic field H dependence of the electrical resistivity {rho} of U{sub 0.9}Th{sub 0.1}Be{sub 13} in the ranges 0.08 K{le}T{le}10 K and 0 kOe{le}H{le}80 kOe. In zero applied magnetic field below 0.7 K, the resistivity displays a linear temperature dependence, characteristic of non-Fermi-liquid behavior, down to 0.23 K, where it then saturates as T{sup 2}, consistent with Fermi-liquid behavior, down to 0.08 K, the lowest temperature attained in the experiment. Magnetic fields up to 40 kOe have practically no effect on the electrical resistivity above 1 K, but dramatically influence the low temperature {rho}(T) behavior below 0.7 K. At temperatures below 0.7 K, an anomalously large positive magnetoresistivity is accompanied by a rapid expansion of the temperature region where Fermi-liquid behavior is observed. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
; ; ;  [1];  [2];  [3]
  1. Department of Physics and Institute for Pure and Applied Physical Sciences, University of California, San Diego, La Jolla, California 92093 (United States)
  2. Laboratorium voor Vaste-Stoffysica en Magnetisme, Celestijnenlaan 200D, KU Leuven, B3001 Leuven (Belgium)
  3. Departamento de Fisica de la Materia Condensada, C-III, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid (Spain)
Publication Date:
OSTI Identifier:
544917
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review, B: Condensed Matter; Journal Volume: 56; Journal Issue: 17; Other Information: PBD: Nov 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; URANIUM ALLOYS; MAGNETORESISTANCE; THORIUM ALLOYS; BERYLLIUM ALLOYS; FERMI LEVEL; TEMPERATURE DEPENDENCE; MAGNETIC FIELDS; TEMPERATURE RANGE 0000-0013 K; FERMIONS

Citation Formats

Dickey, R.P., de Andrade, M.C., Herrmann, J., Maple, M.B., Aliev, F.G., and Villar, R. Crossover from non-Fermi-liquid to Fermi-liquid behavior in the magnetoresistivity of U{sub 0.9}Th{sub 0.1}Be{sub 13}. United States: N. p., 1997. Web. doi:10.1103/PhysRevB.56.11169.
Dickey, R.P., de Andrade, M.C., Herrmann, J., Maple, M.B., Aliev, F.G., & Villar, R. Crossover from non-Fermi-liquid to Fermi-liquid behavior in the magnetoresistivity of U{sub 0.9}Th{sub 0.1}Be{sub 13}. United States. doi:10.1103/PhysRevB.56.11169.
Dickey, R.P., de Andrade, M.C., Herrmann, J., Maple, M.B., Aliev, F.G., and Villar, R. Sat . "Crossover from non-Fermi-liquid to Fermi-liquid behavior in the magnetoresistivity of U{sub 0.9}Th{sub 0.1}Be{sub 13}". United States. doi:10.1103/PhysRevB.56.11169.
@article{osti_544917,
title = {Crossover from non-Fermi-liquid to Fermi-liquid behavior in the magnetoresistivity of U{sub 0.9}Th{sub 0.1}Be{sub 13}},
author = {Dickey, R.P. and de Andrade, M.C. and Herrmann, J. and Maple, M.B. and Aliev, F.G. and Villar, R.},
abstractNote = {We have measured the temperature T and magnetic field H dependence of the electrical resistivity {rho} of U{sub 0.9}Th{sub 0.1}Be{sub 13} in the ranges 0.08 K{le}T{le}10 K and 0 kOe{le}H{le}80 kOe. In zero applied magnetic field below 0.7 K, the resistivity displays a linear temperature dependence, characteristic of non-Fermi-liquid behavior, down to 0.23 K, where it then saturates as T{sup 2}, consistent with Fermi-liquid behavior, down to 0.08 K, the lowest temperature attained in the experiment. Magnetic fields up to 40 kOe have practically no effect on the electrical resistivity above 1 K, but dramatically influence the low temperature {rho}(T) behavior below 0.7 K. At temperatures below 0.7 K, an anomalously large positive magnetoresistivity is accompanied by a rapid expansion of the temperature region where Fermi-liquid behavior is observed. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.56.11169},
journal = {Physical Review, B: Condensed Matter},
number = 17,
volume = 56,
place = {United States},
year = {Sat Nov 01 00:00:00 EST 1997},
month = {Sat Nov 01 00:00:00 EST 1997}
}