Magnetic and transport properties of La0.7Sr0.3MnO3/Pr0.65Ca0.35MnO3 multilayered films with different microstructure

Автор(и)

  • V.G. Prokhorov Institute of Metal Physics, National Academy of Sciences of Ukraine 36 Vernadskogo Ave., Kiev, 03142, Ukraine
  • V.S. Flis Institute of Metal Physics, National Academy of Sciences of Ukraine 36 Vernadskogo Ave., Kiev, 03142, Ukraine
  • G.G. Kaminsky Institute of Metal Physics, National Academy of Sciences of Ukraine 36 Vernadskogo Ave., Kiev, 03142, Ukraine
  • Y.P. Lee Quantum Photonic Science Research Center and Department of Physics Hanyang University, Seoul, 133-791 Korea

Ключові слова:

PACS: 71.30. h, 75.47.Gk, 75.47.Lx

Анотація

The magnetic and transport properties of single-crystal and polycrystalline La0.7Sr0.3MnO3/Pr0.65Ca0.35MnO3 multilayered films are investigated in the temperature range 4.2–300 K. It is shown that the transformation from an incoherent to a coherent interface between layers leads to an enhancement of the ferromagnetic coupling, which is accompanied by a modification in the temperature dependence of the resistance and by a grown negative magnetoresistance ratio at room temperature. The influence of grain boundaries on the transport of carriers in the multilayered films is discussed on the basis of modern theoretical approaches.

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Опубліковано

2004-04-19

Як цитувати

(1)
Prokhorov, V.; Flis, V.; Kaminsky, G.; Lee, Y. Magnetic and Transport Properties of La0.7Sr0.3MnO3/Pr0.65Ca0.35MnO3 Multilayered Films With Different Microstructure. Fiz. Nizk. Temp. 2004, 30, 619-625.

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Низькотемпературний магнетизм

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