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Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films

Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films

The microstructure and the magnetic and transport properties of La₀.₇Ca₀.₃MnO₃ and La₀.₇Sr₀.₃MnO₃ films deposited on a BaTiO₃ layer (LCMO/BTO and LSMO/BTO) and on a LaAlO₃ (001) single crystal (LCMO/LAO and LSMO/LAO) by rf-magnetron sputtering using «soft» (or powder) targets are investigated....

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Main Authors: Prokhorov, V.G., Komashko, V.A., Kaminsky, G.G., Yu, K.K., Jun, S.J., Park, S.Y., Park, J.S., Lee, Y.P., Svetchnikov, V.L.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2007
Series:Физика низких температур
Subjects:
Низкотемпеpатуpный магнетизм
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/127503
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spelling irk-123456789-1275032017-12-24T03:03:14Z Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films Prokhorov, V.G. Komashko, V.A. Kaminsky, G.G. Yu, K.K. Jun, S.J. Park, S.Y. Park, J.S. Lee, Y.P. Svetchnikov, V.L. Низкотемпеpатуpный магнетизм The microstructure and the magnetic and transport properties of La₀.₇Ca₀.₃MnO₃ and La₀.₇Sr₀.₃MnO₃ films deposited on a BaTiO₃ layer (LCMO/BTO and LSMO/BTO) and on a LaAlO₃ (001) single crystal (LCMO/LAO and LSMO/LAO) by rf-magnetron sputtering using «soft» (or powder) targets are investigated. The films grown on BTO demonstrate biaxial tensile in-plane and compressive out-of-plane strains, while the films grown on LAO, in contrast, manifest compressive in-plane and tensile out-of-plane strains. The films with biaxial tensile in-plane lattice strain undergo the magnetic transition at a higher temperature than that for the biaxial compressive case. This argues that the Mn–O–Mn bond-angle variation, controlled by the lattice strain, plays a more important role in the formation of the spin ordering than the attendant modification of the Mn–O bond length. It was shown that the magnetic inhomogeneity, expressed by a significant difference between the field-cooled and zero-field-cooled temperature-dependent magnetization, has a metallurgical rather than an electronic nature, and is controlled by the crystal lattice distortion and the microstructure defects. The observed enhancement of the magnetoresistance effect in the LSMO/BTO bilayer at room temperature make this object greatly beneficial in the development of new hybrid ferromagnetic/ferroelectric devices. 2007 Article Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films / V.G. Prokhorov, V.A. Komashko, G.G. Kaminsky, K.K. Yu, S.J. Jun, S.Y. Park, J.S. Park, Y.P. Lee, V.L. Svetchnikov, // Fizika Nizkikh Temperatur. — 2007. — Т. 33, № 1. — С. 78-87. — Бібліогр.: 50 назв. — англ. 0132-6414 PACS: 71.30.+h, 75.47.Gk, 75.47.Lx http://dspace.nbuv.gov.ua/handle/123456789/127503 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Низкотемпеpатуpный магнетизм
Низкотемпеpатуpный магнетизм
spellingShingle Низкотемпеpатуpный магнетизм
Низкотемпеpатуpный магнетизм
Prokhorov, V.G.
Komashko, V.A.
Kaminsky, G.G.
Yu, K.K.
Jun, S.J.
Park, S.Y.
Park, J.S.
Lee, Y.P.
Svetchnikov, V.L.
Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
Физика низких температур
description The microstructure and the magnetic and transport properties of La₀.₇Ca₀.₃MnO₃ and La₀.₇Sr₀.₃MnO₃ films deposited on a BaTiO₃ layer (LCMO/BTO and LSMO/BTO) and on a LaAlO₃ (001) single crystal (LCMO/LAO and LSMO/LAO) by rf-magnetron sputtering using «soft» (or powder) targets are investigated. The films grown on BTO demonstrate biaxial tensile in-plane and compressive out-of-plane strains, while the films grown on LAO, in contrast, manifest compressive in-plane and tensile out-of-plane strains. The films with biaxial tensile in-plane lattice strain undergo the magnetic transition at a higher temperature than that for the biaxial compressive case. This argues that the Mn–O–Mn bond-angle variation, controlled by the lattice strain, plays a more important role in the formation of the spin ordering than the attendant modification of the Mn–O bond length. It was shown that the magnetic inhomogeneity, expressed by a significant difference between the field-cooled and zero-field-cooled temperature-dependent magnetization, has a metallurgical rather than an electronic nature, and is controlled by the crystal lattice distortion and the microstructure defects. The observed enhancement of the magnetoresistance effect in the LSMO/BTO bilayer at room temperature make this object greatly beneficial in the development of new hybrid ferromagnetic/ferroelectric devices.
format Article
author Prokhorov, V.G.
Komashko, V.A.
Kaminsky, G.G.
Yu, K.K.
Jun, S.J.
Park, S.Y.
Park, J.S.
Lee, Y.P.
Svetchnikov, V.L.
author_facet Prokhorov, V.G.
Komashko, V.A.
Kaminsky, G.G.
Yu, K.K.
Jun, S.J.
Park, S.Y.
Park, J.S.
Lee, Y.P.
Svetchnikov, V.L.
author_sort Prokhorov, V.G.
title Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
title_short Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
title_full Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
title_fullStr Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
title_full_unstemmed Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
title_sort magnetic and transport properties driven by lattice strain in la₀.₇ca₀.₃mno₃/batio₃ and la₀.₇sr₀.₃mno₃/batio₃ bilayered films
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 2007
topic_facet Низкотемпеpатуpный магнетизм
url http://dspace.nbuv.gov.ua/handle/123456789/127503
citation_txt Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films / V.G. Prokhorov, V.A. Komashko, G.G. Kaminsky, K.K. Yu, S.J. Jun, S.Y. Park, J.S. Park, Y.P. Lee, V.L. Svetchnikov, // Fizika Nizkikh Temperatur. — 2007. — Т. 33, № 1. — С. 78-87. — Бібліогр.: 50 назв. — англ.
series Физика низких температур
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first_indexed 2023-10-18T20:53:13Z
last_indexed 2023-10-18T20:53:13Z
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