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Title: Magnetoresistance in La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} for 0.05{le}{ital x}{le}0.25

Abstract

The dc resistivity, magnetoresistance, and magnetic susceptibility of La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} compounds have been investigated in the temperature range of 4{endash}300 K for magnetic fields up to 7 T. In the doping range studied (0.05{le}{ital x}{le}0.25) the electronic properties of the material exhibit a crossover from semiconducting to metallic behavior. The magnetoresistance is highest in the semiconducting state. A correlation was found between the energy gap determined from the dc conductivity and the energy scale identified from neutron scattering data. The results are interpreted in terms of a double-exchange model. {copyright} {ital 1996 The American Physical Society.}

Authors:
;  [1];  [2]
  1. Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)
  2. Department of Applied Science, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
279790
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 53; Journal Issue: 13; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT OXIDES; MAGNETORESISTANCE; LANTHANUM OXIDES; STRONTIUM OXIDES; CRYSTAL DOPING; ELECTRIC CONDUCTIVITY; ENERGY GAP; MAGNETIC SUSCEPTIBILITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K

Citation Formats

Golovanov, V, Mihaly, L, and Moodenbaugh, A R. Magnetoresistance in La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} for 0.05{le}{ital x}{le}0.25. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.53.8207.
Golovanov, V, Mihaly, L, & Moodenbaugh, A R. Magnetoresistance in La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} for 0.05{le}{ital x}{le}0.25. United States. doi:10.1103/PhysRevB.53.8207.
Golovanov, V, Mihaly, L, and Moodenbaugh, A R. Mon . "Magnetoresistance in La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} for 0.05{le}{ital x}{le}0.25". United States. doi:10.1103/PhysRevB.53.8207.
@article{osti_279790,
title = {Magnetoresistance in La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} for 0.05{le}{ital x}{le}0.25},
author = {Golovanov, V and Mihaly, L and Moodenbaugh, A R},
abstractNote = {The dc resistivity, magnetoresistance, and magnetic susceptibility of La{sub 1{minus}{ital x}}Sr{sub {ital x}}CoO{sub 3} compounds have been investigated in the temperature range of 4{endash}300 K for magnetic fields up to 7 T. In the doping range studied (0.05{le}{ital x}{le}0.25) the electronic properties of the material exhibit a crossover from semiconducting to metallic behavior. The magnetoresistance is highest in the semiconducting state. A correlation was found between the energy gap determined from the dc conductivity and the energy scale identified from neutron scattering data. The results are interpreted in terms of a double-exchange model. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.53.8207},
journal = {Physical Review, B: Condensed Matter},
number = 13,
volume = 53,
place = {United States},
year = {1996},
month = {4}
}