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- W2893390129 abstract "In this present study, electronic transport and magneto-transport properties of bulk and nanocrystalline La0.46Ca0.54MnO3 compound are reported. The activation energies required for polaron transport in the paramagnetic state for different average grain size particles were estimated from the resistivity as a function of temperature data. It is found that there is a strong dependency of the activation energy in paramagnetic state with the reduction of the grain sizes and charge ordering. With decreasing particle sizes, activation energy enhances and it modifies with the application of external magnetic field. However, a different nature was found for the 15 and 21 nm particle size samples. The activation energy for the 21 nm particle size sample is smaller compared to 15 nm. Such behavior may be associated with the more disorder and spin-pinning effect in the lowest particle size sample. The variation of activation energy and the crystallographic unit cell volume with the reduction of particle size is addressed." @default.
- W2893390129 created "2018-10-05" @default.
- W2893390129 creator A5019698197 @default.
- W2893390129 date "2018-09-27" @default.
- W2893390129 modified "2023-09-27" @default.
- W2893390129 title "A comparative study of polaronic transport in paramagnetic state of bulk and nanocrystalline La0.46Ca0.54MnO3 compound" @default.
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- W2893390129 doi "https://doi.org/10.1063/1.5042338" @default.
- W2893390129 hasPublicationYear "2018" @default.
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