Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films
Magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films prepared by a «co-deposition» utilizing the laser-ablation technique are investigated in a wide temperature range. The film deposited at 300 °C has a nano-crystalline disordered structure and exhibits a paramagnetic...
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| Published in: | Физика низких температур |
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| Date: | 2005 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/121394 |
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| Cite this: | Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films / V.G. Prokhorov, V.S. Flis, G.G. Kaminsky, Y.P. Lee, J.S. Park, V.L. Svetchnikov // Физика низких температур. — 2005. — Т. 31, № 2 — С. 213-221. — Бібліогр.: 35 назв. — англ. |
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Prokhorov, V.G. Flis, V.S. Kaminsky, G.G. Lee, Y.P. Park, J.S. Svetchnikov, V.L. 2017-06-14T09:19:25Z 2017-06-14T09:19:25Z 2005 Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films / V.G. Prokhorov, V.S. Flis, G.G. Kaminsky, Y.P. Lee, J.S. Park, V.L. Svetchnikov // Физика низких температур. — 2005. — Т. 31, № 2 — С. 213-221. — Бібліогр.: 35 назв. — англ. 0132-6414 PACS: 71.30.+h, 75.47.Gk, 75.47.Lx https://nasplib.isofts.kiev.ua/handle/123456789/121394 Magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films prepared by a «co-deposition» utilizing the laser-ablation technique are investigated in a wide temperature range. The film deposited at 300 °C has a nano-crystalline disordered structure and exhibits a paramagnetic temperature dependence of the magnetization with a narrow peak (ΔT ≃ 10 K) at TG ≃ 45 K, which can be interpreted as a paramagnetic → superparamagnetic transition. A short-term annealing of the as-deposited film at 750 °C leads to the formation of a high-textured polycrystalline microstructure and to the appearance of ferromagnetic (FM) and metal—insulator (MI) transitions at TC ≃ 240 K and TP ≃ 140 K, respectively. The observed discrepancy between TP and TC values can be ascribed to a percolating nature of the MI transition, with an exponent of 5.3 for the percolating conductivity. The film deposited at Tsub ≃ 740 °C is composed of the lattice strain-free and the lattice-strained crystallites with different lattice parameters and TC‘s, and is consistently described in the framework of the Millis model [A.J. Millis, T. Darling, and A. Migliori, J. Appl. Phys. 83, 1588 (1998)]. For a single-phase crystalline film obtain TC ≃ 270 K and TP ≃ 260 K. This work was supported by the KOSEF through the Quantum Photonic Science Research Center. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпеpатуpный магнетизм Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films |
| spellingShingle |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films Prokhorov, V.G. Flis, V.S. Kaminsky, G.G. Lee, Y.P. Park, J.S. Svetchnikov, V.L. Низкотемпеpатуpный магнетизм |
| title_short |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films |
| title_full |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films |
| title_fullStr |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films |
| title_full_unstemmed |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films |
| title_sort |
influence of structural disorder on magnetic and transport properties of (la₀.₇sr₀.₃)₀.₅(pr₀.₆₅ca₀.₃₅)₀.₅mno₃ films |
| author |
Prokhorov, V.G. Flis, V.S. Kaminsky, G.G. Lee, Y.P. Park, J.S. Svetchnikov, V.L. |
| author_facet |
Prokhorov, V.G. Flis, V.S. Kaminsky, G.G. Lee, Y.P. Park, J.S. Svetchnikov, V.L. |
| topic |
Низкотемпеpатуpный магнетизм |
| topic_facet |
Низкотемпеpатуpный магнетизм |
| publishDate |
2005 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films prepared by a
«co-deposition» utilizing the laser-ablation technique are investigated in a wide temperature
range. The film deposited at 300 °C has a nano-crystalline disordered structure and exhibits a paramagnetic
temperature dependence of the magnetization with a narrow peak (ΔT ≃ 10 K) at
TG ≃ 45 K, which can be interpreted as a paramagnetic → superparamagnetic transition.
A short-term annealing of the as-deposited film at 750 °C leads to the formation of a high-textured
polycrystalline microstructure and to the appearance of ferromagnetic (FM) and metal—insulator
(MI) transitions at TC ≃ 240 K and TP ≃ 140 K, respectively. The observed discrepancy between
TP and TC values can be ascribed to a percolating nature of the MI transition, with an exponent of
5.3 for the percolating conductivity. The film deposited at Tsub ≃ 740 °C is composed of the lattice
strain-free and the lattice-strained crystallites with different lattice parameters and TC‘s, and is
consistently described in the framework of the Millis model [A.J. Millis, T. Darling, and A. Migliori,
J. Appl. Phys. 83, 1588 (1998)]. For a single-phase crystalline film obtain TC ≃ 270 K and
TP ≃ 260 K.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/121394 |
| citation_txt |
Influence of structural disorder on magnetic and transport properties of (La₀.₇Sr₀.₃)₀.₅(Pr₀.₆₅Ca₀.₃₅)₀.₅MnO₃ films / V.G. Prokhorov, V.S. Flis, G.G. Kaminsky, Y.P. Lee, J.S. Park, V.L. Svetchnikov // Физика низких температур. — 2005. — Т. 31, № 2 — С. 213-221. — Бібліогр.: 35 назв. — англ. |
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2025-12-02T04:54:43Z |
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2025-12-02T04:54:43Z |
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