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Magnetic and Dielectric Properties of LiFePO4
Journal of Magnetics, Volume 24, Number 1, 31 Mar 2019, Pages 101-106
Abstract
A LiFePO4 was prepared using the ball milling. The X-ray diffraction patterns of the sample were measured, and the results confirmed that the sample’s structure was orthorhombic with space group Pnma. The particle
size and morphology of the sample prepared by the ball mill method confirmed by FE-SEM. The magnetization curves of the sample were measured using a vibrating sample magnetometer at temperatures of 4.2 to 295
K at 1000 Oe. The Néel temperature (TN) and spin-reorientation temperature (TS) were found to be 51.5 and 25 K, respectively. We investigated the magnetic hyperfine interaction using Mössbauer spectrometry at various
temperatures between 4.2 and 295 K. At temperatures below TN, the Mössbauer spectra of the sample were exhibited eight absorption lines resulting from the magnetic dipole and electric quadruple interaction. The Fe
ions state of sample at all temperatures were found to be ferrous state (Fe2+) ions. Debye temperature (θD) of 433 ± 5 K was obtained for the sample. The permeability and permittivity were obtained using a Network analyzer.
size and morphology of the sample prepared by the ball mill method confirmed by FE-SEM. The magnetization curves of the sample were measured using a vibrating sample magnetometer at temperatures of 4.2 to 295
K at 1000 Oe. The Néel temperature (TN) and spin-reorientation temperature (TS) were found to be 51.5 and 25 K, respectively. We investigated the magnetic hyperfine interaction using Mössbauer spectrometry at various
temperatures between 4.2 and 295 K. At temperatures below TN, the Mössbauer spectra of the sample were exhibited eight absorption lines resulting from the magnetic dipole and electric quadruple interaction. The Fe
ions state of sample at all temperatures were found to be ferrous state (Fe2+) ions. Debye temperature (θD) of 433 ± 5 K was obtained for the sample. The permeability and permittivity were obtained using a Network analyzer.
Keywords: Mössbauer; magnetic properties; ball mill method; Li-ion batteries
DOI: https://doi.org/10.4283/JMAG.2019.24.1.101
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