Abstract
Metal/ferroelectric/manganite tunnel structures and ferroelectric/manganite heterostructures connected in series via a manganite in the conductive phase were investigated. It was shown that the source of optical nonlinearity is a current arising in a tunnel structure due to the tunneling of electrons via a ferroelectric barrier. The resulting current flowing in the manganite of the heterostructure breaks the central symmetry of the manganite and/or causes ferroelectric polarization switching.
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Original Russian Text © M.S. Ivanov, E.D. Mishina, V.G. Morozov, 2010, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2010, Vol. 74, No. 9, pp. 1333–1336.
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Ivanov, M.S., Mishina, E.D. & Morozov, V.G. Investigation of a ferroelectric/manganite heterostructure by second optical harmonic generation. Bull. Russ. Acad. Sci. Phys. 74, 1277–1280 (2010). https://doi.org/10.3103/S1062873810090273
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DOI: https://doi.org/10.3103/S1062873810090273