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Possible coexistence of cycloidal phases, magnetic field reversal of polarization, and memory effect in multiferroic R0.5Dy0.5MnO3 (R=Eu and Gd)

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dc.contributor.author De, Chandan
dc.contributor.author Sundaresan, A.
dc.date.accessioned 2016-10-28T05:59:47Z
dc.date.available 2016-10-28T05:59:47Z
dc.date.issued 2015
dc.identifier.citation Applied Physics Letters en_US
dc.identifier.citation 107 en_US
dc.identifier.citation 5 en_US
dc.identifier.citation De, C.; Sundaresan, A., Possible coexistence of cycloidal phases, magnetic field reversal of polarization, and memory effect in multiferroic R0.5Dy0.5MnO3 (R=Eu and Gd). Applied Physics Letters 2015, 107 (5), 5. en_US
dc.identifier.issn 0003-6951
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/1918
dc.description Restricted access en_US
dc.description.abstract We report the occurrence of both ab and bc cycloidal ordering of Mn-spins at different temperatures and their possible coexistence at low temperatures in the polycrystalline mixed rare-earth compounds, R0.5Dy0.5MnO3 (R = Eu and Gd), which exhibit extraordinary magnetoelectric properties. While the polarization of Gd0.5Dy0.5MnO3 is comparable to TbMnO3, the compound Eu0.5Dy0.5MnO3 shows high value of polarization. However, both of them show giant magnetic tunability and exhibit large magnetocapacitance whose sign changes across the two cycloidal ordering temperatures. Intriguingly, the electric polarization can be reversed upon ramping up or ramping down the magnetic field, which has not been observed for any of the RMnO3 system. Most strikingly, these compounds show non-volatile ferroelectric memory effect even in the paraelectric and paramagnetic region (T-C <= T <= 80 K). We attribute these remarkable properties to the coexistence of ab and bc cycloidal ordered phases. (C) 2015 AIP Publishing LLC. en_US
dc.description.uri 1077-3118 en_US
dc.description.uri http://dx.doi.org/10.1063/1.4928126 en_US
dc.language.iso English en_US
dc.publisher American Institute of Physics en_US
dc.rights ?American Institute of Physics, 2015 en_US
dc.subject Applied Physics en_US
dc.subject Ferroelectric Polarization en_US
dc.subject TbMnO3 en_US
dc.subject Pressure en_US
dc.title Possible coexistence of cycloidal phases, magnetic field reversal of polarization, and memory effect in multiferroic R0.5Dy0.5MnO3 (R=Eu and Gd) en_US
dc.type Article en_US


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