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The Narrow-Band System La1-xSrxTiO3

Published online by Cambridge University Press:  15 February 2011

Charles C. Hays ,
John B. Goodenough  and
John T. Marken
Charles C. Hays
Affiliation:
Department of Physics, University of Texas at Austin, Austin, TX 78712
John B. Goodenough
Affiliation:
Center for Materials Science & Engineering, ETC 9.102, University of Texas at Austin, Austin, TX 78712
John T. Marken
Affiliation:
Department of Physics, University of Texas at Austin, Austin, TX 78712
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Abstract

Magnetic, transport, and structural data on polycrystalline samples of the system La1-xSrxTiO3, 0 ≤ x ≤ 0.8, show an abrupt, but apparently smooth, transition from p-type polaronic conduction in a canted-spin antiferromagnetic system for x ≤ 0.04 to metallic, mass-enhanced Pauli paramagnetic behavior for x ≥ 0.1 with evidence for a spin glass and a discontinuous drop in TN in the transition range. We interpret these results as a manifestation of the coexistence of two distinguishable electronic domains within a single crystallographic phase as a result of cooperative displacements of the oxygen atoms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 349
Copyright
Copyright © Materials Research Society 1997

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