论文信息 - Pressure-Induced Ferroelectricity in Ca 2 Ba(C 2 H 5 CO 2 ) 6 (DBP)

Pressure-Induced Ferroelectricity in Ca 2 Ba(C 2 H 5 CO 2 ) 6 (DBP)

Dielectric properties of Ca 2 Ba(C 2 H 5 CO 2 ) 6 single crystals have been studied at hydrostatic pressure of about 0.9 kbar. It has been found that the high-pressure phase V is ferroelectric. D - E hysteresis loop at 60 Hz is observed only on annealed specimens, but not on as-grown crystals. It is suggested that the ferroelectric phase V of Ca 2 Ba(C 2 H 5 CO 2 ) 6 corresponds to those well-known ferroelectric phases II of Ca 2 Sr(C 2 H 5 CO 2 ) 6 and Ca 2 Pb(C 2 H 5 CO 2 ) 6 which are realized at atmospheric pressure.

Y. Ishibashi | T. Kikugawa | A. Sawada

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