Magnetic proximity effect in La0.7Ca0.3MnO3/La0.9Ca0.1MnO3 multilayered film with diffusive interfaces

Автор(и)

  • V.G. Prokhorov Institute of Metal Physics, National Academy of Sciences of Ukraine, Kiev 03142, Ukraine
  • G.G. Kaminsky Institute of Metal Physics, National Academy of Sciences of Ukraine, Kiev 03142, Ukraine
  • Y.P. Lee q-Psi and Department of Physics, Hanyang University, Seoul, 133-791, Korea
  • S.Y. Park q-Psi and Department of Physics, Hanyang University, Seoul, 133-791, Korea
  • Y.H. Hyun q-Psi and Department of Physics, Hanyang University, Seoul, 133-791, Korea
  • J.S. Park q-Psi and Department of Physics, Hanyang University, Seoul, 133-791, Korea
  • V.L. Svetchnikov National Center for HREM, TU Delft, 2628AL, The Netherlands

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.2973714

Ключові слова:

manganite, multilayered film, diffusive interface, magnetic proximity effect.

Анотація

The structural, the magnetic and the transport properties of La0.7Ca0.3MnO3/La0.9Ca0.1MnO3 multilayer film, prepared by rf-magnetron sputtering, have been investigated. The high-resolution electron-microscopy studies reveal the formation of different crystal structures in the constituent sublayers, but without sharp and well-defined interfaces. At the same time, the small regions of double-period modulated phase exist in the La0.9Ca0.1MnO3 sublayers at room temperature, manifesting the formation of charge-ordered antiferromagnetic state. The magnetic measurements reveal a significant enhancement of the ferromagnetic ordering in the La0.9Ca0.1MnO3 layers due to a strong magnetic coupling between the constituent sublayers. The multilayer film shows the anisotropic saturation magnetization at low temperature and the alternating shape of the temperature-dependent anisotropic magnetoresistance near the metal-insulator transition.

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Опубліковано

2008-09-02

Як цитувати

(1)
V.G. Prokhorov, G.G. Kaminsky, Y.P. Lee, S.Y. Park, Y.H. Hyun, J.S. Park, and V.L. Svetchnikov, Magnetic proximity effect in La0.7Ca0.3MnO3/La0.9Ca0.1MnO3 multilayered film with diffusive interfaces, Low Temp. Phys. 34, (2008) [Fiz. Nizk. Temp. 34, 942-946, (2008)] DOI: https://doi.org/10.1063/1.2973714.

Номер

Том 34 № 9 (2008)

Розділ

Низькотемпературний магнетизм

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