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Dipole glass in chromium-substituted bismuth pyrostannate
To establish the existence of dipole glass in the chromium-substituted bismuth pyrostannate solid solutions, the frequency and temperature dependences of the permittivity have been measured in the temperature range of 300-750 K. The field and dynamic dependences of polarization in the temperature ra...
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Published in: | Materials research express 2018-11, Vol.5 (11), p.115202 |
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creator | Aplesnin, S S Udod, L V Sitnikov, M N Kretinin, V V Molokeev, M S Mironova-Ulmane, N |
description | To establish the existence of dipole glass in the chromium-substituted bismuth pyrostannate solid solutions, the frequency and temperature dependences of the permittivity have been measured in the temperature range of 300-750 K. The field and dynamic dependences of polarization in the temperature range of 80-550 K have been determined. Using the Raman scattering spectra, the absence of inversion center has been established. The maximum of electrical resistance has been found in the vicinity of the dipole moment freezing point. The carrier type has been determined from the thermopower data. The polarization relaxation is shown to be nonexponential. The experimental data are explained within the model of dipole glass in the - phase and the model of charged crystalline domain walls with the electron-polarization relaxation mechanism above the -β structural transition. |
doi_str_mv | 10.1088/2053-1591/aaddd9 |
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The field and dynamic dependences of polarization in the temperature range of 80-550 K have been determined. Using the Raman scattering spectra, the absence of inversion center has been established. The maximum of electrical resistance has been found in the vicinity of the dipole moment freezing point. The carrier type has been determined from the thermopower data. The polarization relaxation is shown to be nonexponential. 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Res. Express</addtitle><description>To establish the existence of dipole glass in the chromium-substituted bismuth pyrostannate solid solutions, the frequency and temperature dependences of the permittivity have been measured in the temperature range of 300-750 K. The field and dynamic dependences of polarization in the temperature range of 80-550 K have been determined. Using the Raman scattering spectra, the absence of inversion center has been established. The maximum of electrical resistance has been found in the vicinity of the dipole moment freezing point. The carrier type has been determined from the thermopower data. The polarization relaxation is shown to be nonexponential. 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subjects | dipole glass permittivity polarization Raman scattering spectra structural transition |
title | Dipole glass in chromium-substituted bismuth pyrostannate |
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