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This article is cited in 1 scientific paper (total in 1 paper)
Magnetism
Dielectric relaxations, magnetodielectric and magnetoelectric interactions in Bi$_{0.6}$La$_{0.4}$MnO$_{3}$ ceramics
A. V. Turikab, A. V. Pavlenkoac, A. V. Makhiborodab, L. A. Reznichenkoa a Research Institute of Physics, Southern Federal University, Rostov-on-Don
b Southern Federal University, Rostov-on-Don
c Southern Research Center of the Russian Academy of Sciences, Rostov-on-Don
Abstract:
Complex permittivity $\varepsilon^{*}/\varepsilon_{0} =\varepsilon'/\varepsilon_{0}-i\varepsilon''/\varepsilon_{0}$ of the bismuth–lanthanum manganite Bi$_{0.6}$La$_{0.4}$MnO$_{3}$ ceramics has been measured in the temperature range of 10–220 K at frequencies $f$ = 20–106 Hz and magnetic inductions $B$ = 0–0.846 T. At a temperature of 80 K, the spectra $\varepsilon'/\varepsilon_{0}(f)$ and $\varepsilon''/\varepsilon_{0}(f)$ demonstrate the dielectric relaxation that is a superposition of contributions of several relaxation processes, each of which is dominant in its frequency range: I($f<$ 10$^{3}$ Hz), II(10$^{3}$ $< f<$ 10$^{5}$ Hz), and III(10$^{5}$ $<f<$ 10$^{6}$ Hz). In the range of 10–120 K, anomalous behavior of $\varepsilon'/\varepsilon_{0}(T)$ and $\varepsilon''/\varepsilon_{0}(T)$ is observed near the temperature of the transition from the paramagnetic to ferromagnetic phase and is due to the Anderson localization of charge carrier on a spin disorder.
Keywords:
Manganite, Dielectric Relaxation, Complex Permittivity, Anderson Localization, Bismuth Titanate.
Received: 02.06.2015 Revised: 24.06.2015
Citation:
A. V. Turik, A. V. Pavlenko, A. V. Makhiboroda, L. A. Reznichenko, “Dielectric relaxations, magnetodielectric and magnetoelectric interactions in Bi$_{0.6}$La$_{0.4}$MnO$_{3}$ ceramics”, Fizika Tverdogo Tela, 58:1 (2016), 97–101; Phys. Solid State, 58:1 (2016), 97–101
Linking options:
https://www.mathnet.ru/eng/ftt10114 https://www.mathnet.ru/eng/ftt/v58/i1/p97
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