Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films
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| Creator |
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. |
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| Subject |
Низкотемпеpатуpный магнетизм
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| 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. |
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| Date |
2017-12-23T12:19:03Z
2017-12-23T12:19:03Z 2007 |
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| Type |
Article
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| Identifier |
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 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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