Abstract
Epitaxial thin films of granular and layered nanocomposites consisting of ferromagnetic perovskite Pr1–xSrxMnO3 and ferroelectric hexagonal LuMnO3 were grown on ZrO2(Y2O3) substrates using metal-organic chemical vapor deposition (MOCVD). A self-organized growth of the granular composite took place in situ as a result of phase separation of the Pr–Sr–Lu–Mn–O system into the perovskite and hexagonal phases. Optical transmission measurements revealed a large negative magnetotransmission effect in the layered nanocomposite over a wide spectral and temperature range. The granular nanocomposite unexpectedly showed an even larger, but positive, magnetotransmission effect at room temperature.
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