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Title: Frozen Superparaelectric State of Local Polar Regions in GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5}

Abstract

A comparative study of the dielectric properties and electric polarization of multiferroics GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5} has been carried out in the temperature range 5–330 K. The polarization properties in the ferroelectric state that forms due to a charge ordering and exchange striction have been studied at T ≤ T{sub C} = 30 K. The properties of the restricted polar phase separation domains formed in the crystals containing ions Mn{sup 3+} and Mn{sup 4+} have been studied, too. These domains exhibit the electric polarization in the temperature range from 5 K to some temperatures T{sub f} ≫ T{sub C}. Such a high-temperature polarization is due to the frozen superparaelectric state of the restricted polar domains.

Authors:
; ;  [1]
  1. Russian Academy of Sciences, Ioffe Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22771373
Resource Type:
Journal Article
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 60; Journal Issue: 3; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7834
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CERIUM COMPOUNDS; CRYSTALS; DIELECTRIC PROPERTIES; FERROELECTRIC MATERIALS; GADOLINIUM COMPOUNDS; MANGANATES; MANGANESE IONS; POLAR REGIONS; POLARIZATION

Citation Formats

Sanina, V. A., E-mail: sanina@mail.ioffe.ru, Khannanov, B. Kh., Golovenchits, E. I., and Shcheglov, M. P. Frozen Superparaelectric State of Local Polar Regions in GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5}. United States: N. p., 2018. Web. doi:10.1134/S1063783418030289.
Sanina, V. A., E-mail: sanina@mail.ioffe.ru, Khannanov, B. Kh., Golovenchits, E. I., & Shcheglov, M. P. Frozen Superparaelectric State of Local Polar Regions in GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5}. United States. https://doi.org/10.1134/S1063783418030289
Sanina, V. A., E-mail: sanina@mail.ioffe.ru, Khannanov, B. Kh., Golovenchits, E. I., and Shcheglov, M. P. Thu . "Frozen Superparaelectric State of Local Polar Regions in GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5}". United States. https://doi.org/10.1134/S1063783418030289.
@article{osti_22771373,
title = {Frozen Superparaelectric State of Local Polar Regions in GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5}},
author = {Sanina, V. A., E-mail: sanina@mail.ioffe.ru and Khannanov, B. Kh. and Golovenchits, E. I. and Shcheglov, M. P.},
abstractNote = {A comparative study of the dielectric properties and electric polarization of multiferroics GdMn{sub 2}O{sub 5} and Gd{sub 0.8}Ce{sub 0.2}MnO{sub 5} has been carried out in the temperature range 5–330 K. The polarization properties in the ferroelectric state that forms due to a charge ordering and exchange striction have been studied at T ≤ T{sub C} = 30 K. The properties of the restricted polar phase separation domains formed in the crystals containing ions Mn{sup 3+} and Mn{sup 4+} have been studied, too. These domains exhibit the electric polarization in the temperature range from 5 K to some temperatures T{sub f} ≫ T{sub C}. Such a high-temperature polarization is due to the frozen superparaelectric state of the restricted polar domains.},
doi = {10.1134/S1063783418030289},
url = {https://www.osti.gov/biblio/22771373}, journal = {Physics of the Solid State},
issn = {1063-7834},
number = 3,
volume = 60,
place = {United States},
year = {2018},
month = {3}
}