Effect of a bias electric field on the dielectric properties of lead-free (Na,Sr,Li)NbO3 ceramics with diffuse phase transition

The effect of a bias electric field on the value and temperature dependence of dielectric permittivity ɛ of lead-free ceramics of the NaNbO 3 -Sr 0.5 NbO 3 -LiNbO 3 system with diffuse maximum ɛ( T ) (temperature T m of which is strongly dependent on frequency) was studied. It was found that the ɛ(...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2011-05, Vol.75 (5), p.677-679
Main Authors: Raevskaya, S. I., Chou, C. C., Lutokhin, A. G., Suzdalev, D. V., Zakharov, Yu. N., Panchenko, E. M., Titov, V. V., Raevskii, I. P., Reznichenko, L. A., Malitskaya, M. A.
Format: Article
Language:English
Subjects:
Bias
Ceramics
Dielectric properties
Electric field strength
Electric fields
Hadrons
Heavy Ions
Lead free
Nuclear Physics
Permittivity
Phase transitions
Physics
Physics and Astronomy
Proceedings of the International Symposium “Physics of Low Dimensional Systems and Surfaces” LDS-2
Relaxors
Temperature dependence
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Summary:The effect of a bias electric field on the value and temperature dependence of dielectric permittivity ɛ of lead-free ceramics of the NaNbO 3 -Sr 0.5 NbO 3 -LiNbO 3 system with diffuse maximum ɛ( T ) (temperature T m of which is strongly dependent on frequency) was studied. It was found that the ɛ( T ) maximum decreases and diffuses as the electric field strength E increases, while T m is virtually independent of E in the investigated range of E ≤ 8 kV cm −1 . A similar effect of a bias electric field on ɛ and T m was observed earlier in classical lead-containing relaxors of the PbMg 1/3 Nb 2/3 O 3 type.
ISSN:1062-8738
1934-9432
DOI:10.3103/S106287381105042X