Effects of Electric Fields on the Dielectric Constants in (Rochelle Salt)_<1-x>(Ammonium Rochelle Salt)_x Mixed Crystals with 0〓〓〓0.025
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概要
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Electric field effects on tlte dielectric constants 9 in tlae mixed cr)'stals, (RS).-.(ARS). where x is from 0 to 0.025, laave been studied in tlte temperature range be-tween 220 K and 320 K. Tlae temperature region of the ferroelectric plaase narrow's asthe NH. content increases, and at around x= 0.023 the two critical points merge intoone. Interestingly, the c diverges at tlae point 7'.as ccc l / (I - T.)'and the e vs 7'curvechanges from a single peak to a twin peak under a dc electric field E. As Late fieldstrength increases, the two peaks shift to opposite directions and the maxinaum valueof the dielectric constant steeply decreases. On the other hand, electric field effects onthe e in the pure RS crystal are understood as those of typical ferroelectrics.
- 社団法人日本物理学会の論文
- 1992-12-15
著者
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Kamishina Yoshio
Department Of Physics Faculty Of Education Shimane University
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Akishige Yukikuni
Department Of Physics Faculty Of Education Shimane University
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