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

• Published in: Физика низких температур
• Date: 2008
• Main Authors: Prokhorov, V.G., Kaminsky, G.G., Lee, Y.P., Park, S.Y., Hyun, Y.H., Park, J.S., Svetchnikov, V.L.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2008
• Subjects: Низкотемпеpатуpный магнетизм
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117476
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Magnetic proximity effect in La₀.7Ca₀.₃MnO₃/La₀.₉Ca₀.₁MnO₃ multilayered film with diffusive interfaces 
 / V.G. Prokhorov, G.G. Kaminsky, Y.P. Lee, S.Y. Park, 
 Y.H. Hyun, J.S. Park, V.L. Svetchnikov
 // Физика низких температур. — 2008. — Т. 34, № 9. — С. 942–946. — Бібліогр.: 19 назв. — англ.

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.