PYROELECTRIC EFFECT, OPTICAL BIREFRINGENCE, AND NONLINEAR DIELECTRIC-CONSTANT IN BETAINE ARSENATE
Type
Article in International Scientific Journal
Year
1994
Authors
LACERDAAROSO, MT
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RIBEIRO, JL
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KLOPPERPIEPER, A
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ALBERS, J
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Abstract (EN):
Detailed measurements of the pyroelectric coefficient and optical birefringence in betaine arsenate, in a temperature range centred at the ferroelectric phase transition(T-c2 approximate to 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.
Language:
English
Type (Professor's evaluation):
Scientific
No. of pages:
10
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