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Spin-Reorientation, Ferroelectricity, and Magnetodielectric Effect in YFe(1-x)Mn(x)O(3)(0.1 <= x <= 0.40)

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dc.contributor.author Mandal, P
dc.contributor.author Bhadram, Venkata Srinu
dc.contributor.author Sundarayya, Y
dc.contributor.author Narayana, Chandrabhas
dc.contributor.author Sundaresan, A
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-01-17T06:03:53Z
dc.date.available 2012-01-17T06:03:53Z
dc.date.issued 2011-09-19
dc.identifier 0031-9007 en_US
dc.identifier.citation Physical Review Letters 107(13), 137202-1-5 (2011) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/190
dc.description.abstract We report the observation of magnetoelectric and magnetodielectric effects at different temperatures in Mn-substituted yttrium orthoferrite, YFe(1-x)Mn(x)O(3)(0.1 <= x <= 0.40). Substitution of Mn in antiferromagnetic YFeO(3)(T(N) = 640 K) induces a first-order spin-reorientation transition at a temperature, T(SR), which increases with x whereas the Neel temperature (T(N)) decreases. While the magnetodielectric effect occurs at T(SR) and T(N), the ferroelectricity appears rather at low temperatures. The origin of magnetodielectric effect is attributed to spin-phonon coupling as evidenced from the temperature dependence of Raman phonon modes. The large magnetocapacitance (18% at 50 kOe) near T(SR) = 320 K and high ferroelectric transition temperature (similar to 115 K) observed for x = 0.4 suggest routes to enhance magnetoelectric effect near room temperature for practical applications. en_US
dc.description.uri http://dx.doi.org/10.1103/PhysRevLett.107.137202 en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.rights © 2011 American Physical Society en_US
dc.subject Raman Spectroscopy en_US
dc.subject Multiferroics en_US
dc.title Spin-Reorientation, Ferroelectricity, and Magnetodielectric Effect in YFe(1-x)Mn(x)O(3)(0.1 <= x <= 0.40) en_US
dc.type Article en_US


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