Pyroelectric Effect, Optical Birefringence, and Non‐Linear Dielectric Constant in Betaine Arsenate | Zendy

LacèrdaAroso M. T. | Zendy; Ribeiro J. L. | Zendy; Chaves M. R. | Zendy; Almeida A. | Zendy; Vieira L. G. | Zendy; Klöpperpieper A. | Zendy; Albers J. | Zendy

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Pyroelectric Effect, Optical Birefringence, and Non‐Linear Dielectric Constant in Betaine Arsenate

Author(s) -

LacèrdaAroso M. T.,

Ribeiro J. L.,

Chaves M. R.,

Almeida A.,

Vieira L. G.,

Klöpperpieper A.,

Albers J.

Publication year - 1994

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221850123

Subject(s) - pyroelectricity , birefringence , arsenate , dielectric , betaine , ferroelectricity , materials science , phase transition , polarization (electrochemistry) , linear relationship , analytical chemistry (journal) , condensed matter physics , optics , chemistry , optoelectronics , physics , arsenic , chromatography , organic chemistry , mathematics , statistics , metallurgy

Detailed measurements of the pyroelectric coefficient and optical birefringence in betaine arsenate, in a temperature range centred at the ferroelectric phase transition ( T c2 ≈ 121 K) are reported. The critical behaviour of the spontaneous polarization is analyzed from these data and a cross‐over between two different critical regimes is evidenced. Results of linear and non‐linear dielectric constant measured along [001] are also reported.

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