Phys. Rev. B 53, 8207–8210 (1996)Magnetoresistance in La1-xSrxCoO3 for 0.05⩽x⩽0.25Received 3 November 1995; published in the issue dated 1 April 1996 The dc resistivity, magnetoresistance, and magnetic susceptibility of La1-xSrxCoO3 compounds have been investigated in the temperature range of 4–300 K for magnetic fields up to 7 T. In the doping range studied (0.05≤x≤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. © 1996 The American Physical Society. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.53.8207
DOI:
10.1103/PhysRevB.53.8207
PACS:
72.15.Gd, 71.70.Gm, 71.45.Gm
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