Creation of Novel Functional Magnetic Oxide Artificial Lattices in a Strongly Correlated Electron System

H. Tanaka; H. Katsu; T. Kanki; T. Kawai

doi:10.3379/jmsjmag.24.459

Magnetism

Creation of Novel Functional Magnetic Oxide Artificial Lattices in a Strongly Correlated Electron System

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Keywords: Perovskite oxide, (La,Sr)MnO₃, (La,Sr)CoO₃, magnetic exchange interaction, photocarrier, piezoelectric strain, Function harmonized artificial lattice

JOURNAL OPEN ACCESS

2000 Volume 24 Issue 4_2 Pages 459-462

DOI https://doi.org/10.3379/jmsjmag.24.459

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Abstract

We formed perovskite magnetic oxide artificial lattices to create novel functional magnetic materials. The magnetoresistance of an (La,Sr)MnO₃/LaFeO₃ superlattice is enhanced by up to 35% in a magnetic field of 1.0 T. In (La,Sr)MnO₃/SrTiO₃ and (La,Sr)CoO₃/(Ba,Ca)TiO₃ hetero-structures, the electrical/magnetic properties of ferromagnetic layers can be controlled by light irradiation and electric field generation, through photo carrier injection and piezoelectric strain effects, respectively.

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