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Approximation to the metal-insulator transition by Gd3+doping in Pauli LaNiO3perovskite

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
239
Issue
1
Identifiers
DOI: 10.1016/0925-8388(96)02200-1
Keywords
  • Lanio3Perovskite
  • Gd Doping
  • Resistivity
  • Esr
  • Magnetic Susceptibility

Abstract

Abstract The effect on electrical and magnetic properties of Gd 3+ doping of LaNiO 3 was studied for Gd concentration x ⩽ 0.1. The electrical resistivity ρ increases with x, being dρ/d T > 0 for all samples studied. The magnetic susceptibilities were fitted by the function χ( T) = χ 0 − aT 2 + xC Gd 3+ / T. The EPR results are discussed in terms of the Gd 3+ paramagnetic moment interactions with the crystal field and with the conduction electron spins.

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