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|Title:||Heat capacity, thermopower and magnetoresistance effects in multiferroic La0.5Bi0.5Mn0.5Fe0.5O3||Authors:||Jha, V.K.
Motin Seikh, M.
|Issue Date:||Nov-2013||Citation:||Jha, V.K., Nautiyal, P., Motin Seikh, M., Chatterjee, R., Mahendiran, R., Kundu, A.K. (2013-11). Heat capacity, thermopower and magnetoresistance effects in multiferroic La0.5Bi0.5Mn0.5Fe0.5O3. Journal of Materials Science 48 (21) : 7629-7634. ScholarBank@NUS Repository. https://doi.org/10.1007/s10853-013-7580-6||Abstract:||We have carried out systematic investigations in perovskite multiferroic La0.5Bi0.5Mn0.5Fe0.5O3 by means of X-ray diffraction, magnetisation, electrical resistivity, thermoelectric and heat capacity measurements. The magnetic behaviour of this composition is rather complex, though the magnetisation curve seems to be like a weak ferromagnetic material. However, there is no clear evidence of λ-anomaly in the heat capacity data down to 2 K, yet this behaviour corroborate the trends of semiconducting silicon below room temperature. The sensitivity of magnetic behaviour to the iron-manganese ratio is also demonstrated. In presence of an external field of 7 T, it exhibits a magnetoresistance of -5 % at 130 K. The thermoelectric value increases linearly with decreasing temperature, and at room temperature the value is +85 μV/K, which is associated with the p-type polaronic conductivity. © 2013 Springer Science+Business Media New York.||Source Title:||Journal of Materials Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/96766||ISSN:||00222461||DOI:||10.1007/s10853-013-7580-6|
|Appears in Collections:||Staff Publications|
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