论文信息 - Electromechanical Properties of the Ferroelectric Crystal NaH3(SeO3)2 near the Curie Point

Electromechanical Properties of the Ferroelectric Crystal NaH3(SeO3)2 near the Curie Point

Elastic compliance constants (at constant electric field) s 11 E , s 22 E and s 33 E and electromechanical couplins factors k 12 and k 13 have been measured in NaH 3 (SeO 3 ) 2 near the Curie point, -79°C. A new theory, which takes account of elastic nonlinearity or the third elastic constants, is proposed to explain the change of s D (at constant electric displacement) below the Curie point. This theory is valid for most of the elastic anomalies in ferroelectric crystals.

Y. Takéuchi | Y. Sasaki | M. Marutake

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