Strain-Induced Ferromagnetism and Magnetoresistance in Epitaxial Thin Films of LaCoO3 Prepared by Polymer-Assisted Deposition
Source abstract
Abstract
High quality epitaxial thin films of LaCoO 3 on SrTiO 3 have been prepared by spin-coating of a metal/polymeric aqueous solution. The films (≈ 17 nm) are homogeneous and smooth over large areas. The characteristic low-spin (LS) state is replaced by a higher spin configuration of Co(III), due to strain-induced distortions of the CoO 6 octahedra, introducing a ferromagnetic interaction and negative magnetoresistance below T C = 85 K. This simple chemical method produces the high-quality films required for either fundamental studies or applications, similar to physical deposition techniques.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Centro de Investigación en Química Biológica y Materiales Moleculares (CIQUS), Campus Vida, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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