Interface Effects on the Electronic Transport Properties in Highly Epitaxial LaBaCo2O5.5+δ Films
Source abstract
Abstract
Single-crystalline perovskite LaBaCo2O5.5+δ thin films were grown on a (110) NdGaO3 single-crystal substrate in order to systematically investigate the effect of lattice mismatch on the electrical transport properties in comparison to the films on LaAlO3, SrTiO3, and MgO substrates. Microstructure studies reveal that all of the LaBaCo2O5.5+δ films are of excellent quality with atomically sharp interface structures. The electrical and magnetic transport property studies indicate that the resistivity, magnetoresistance, and magnetic moment of the film are very sensitive to the substrate materials because of the lattice mismatch/interface strain. The Curie temperature, however, is almost independent of the strain imposed by the substrate, probably because of the strong coupling between the nanodomain boundary and interface strain.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Physics of Superconductivity and Magnetism · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas 78249, United States
Electronic Materials Research Laboratory and International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science & Technology of China, Chengdu, Sichuan 610054, People’s Republic of China
Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas 76019, United States
Department of Chemistry, University of Houston, Houston Texas 77204, United States
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