Sodium metavanadate NaVO3 crystal: Frustrated ferroelectric and electret

We measured the temperature behavior of the spontaneous electric polarization of a monocrystalline sodium metavanadate NaVO 3 sample along the polar axis [010] at temperatures from 20 to 610°C in zero external field. It was found that the spontaneous electric polarization has a wide maximum in the r...

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Bibliographic Details
Published in:Inorganic materials : applied research 2012-07, Vol.3 (4), p.338-341
Main Authors: Ponomarev, B. K., Red’kin, B. S., Sinitsyn, V. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
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Summary:We measured the temperature behavior of the spontaneous electric polarization of a monocrystalline sodium metavanadate NaVO 3 sample along the polar axis [010] at temperatures from 20 to 610°C in zero external field. It was found that the spontaneous electric polarization has a wide maximum in the range from 200 to 300°C and remains nonzero up to 610°C. Measurements of electric polarization of the sample, subjected to the thermoelectric treatment, proved that NaVO 3 is an electret. The electrical hysteresis loop in an alternating electric field with a frequency of 50 Hz and amplitude of 450 V/cm was measured in the vicinity of the temperature maximum.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113312040156