Effect of Hydrostatic Pressure on the Phase Transitions in Acetate-Substituted Dicalcium Strontium Propionate, Ca_2Sr[(C_2H_5COO)_<1-x>(CH_3COO)_x]_6

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概要

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• The effect of hydrostatic pressure on phase tr;xnsitions has been studied by dielectric measurenrents for acetate-substituted clicalcium strontium propionate,Ca.Sr[(C.1-I,COO). .(CH,COO)...1, with ,X'=0.045, 0.10, 0.14. The I-II and II-IIItransition temperatures of .X'=0.045 crystal (256 K and 120 K at 0 MPa, respectively)increase linearly with increasing pressure. The ferrccelectric II phase of ,X'=0. 10 crystalnarrows with application of pressure and disappears at 110 MPa. In the x=O.I4crystal, which does not show ferroelectricity, the temperature at which the dielectricconstant shows a broad maximum increases with increasing pressure. The pressuredependence of the peak value c,.... is expressed by z;,.....= e,f C/ ( p - p.) where C= 225MPa and p.= -27 MPa. There is a parallelism Lcetween the effects of hydrostaticpressure and acetate-substitution on the phase transitions.[CazSr(C,H5CO0),5, acetate-sustitution, high )>ressure, phase transition, fer- ll roelectric[

• 社団法人日本物理学会の論文
• 1992-06-15

著者

• TAKASHIGE Masaaki

  College of Science and Engineering, Iwaki Meisei University

• Takashige Masaaki

  College Of Science And Engineering Iwaki Meisei University

• GESI Kazuo

  College of Science and Engineering,Iwaki Meisei University

• Gesi Kazuo

  College Of Science And Engineering Iwaki Meisei University

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