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- W3131750691 abstract "Abstract The perovskite sample La 0.7 Sr 0.25 Na 0.05 Mn 0.7 Ti 0.3 O 3 (LSNM 0.70 T 0.30 ) was produced via a solid-state route process. Impedance spectra of LSNM 0.70 T 0.30 in the frequency interval [40Hz -1MHz] were studied at several temperatures [80K to 440 K]. The ac conductivity (σac) established that according to the Jonscher law. σac is described by Non-overlapping Small Polaron Tunneling model at low temperatures and Correlated Barrier Hopping model at high temperatures. From dc conductance analysis, conduction seems to be thermally activated, suggesting the existence of semiconductor process. Detailed investigation of impedance data revealed the non-Debye nature of the relaxation processes in the sample. In addition, Dielectric constant curves were applied to examine the relaxation dynamics of charge carriers. In fact, the Debye-like relaxation was performed on the basis of the polarization of spatial charges following Maxwell-Wagner model and Koop’s phenomenological theory." @default.
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- W3131750691 date "2021-02-23" @default.
- W3131750691 modified "2023-09-27" @default.
- W3131750691 title "Hopping conduction mechanism and impedance spectroscopy analyses of La0.70Sr0.25Na0.05Mn0.70Ti0.30O3 ceramic" @default.
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- W3131750691 doi "https://doi.org/10.21203/rs.3.rs-236987/v1" @default.
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