Pyroelectric properties of ferroelectric 0-3 composites near matrix transition temperature

• المؤلفون الرئيسيون: Chew, Khian Hooi, Choy, C.L., Shin, F.G., Ploss, B., Chan, H.L.W.
• التنسيق: مقال
• منشور في: 2005
• الموضوعات: QC Physics
• الوصول للمادة أونلاين: http://eprints.um.edu.my/8216/; http://www.tandfonline.com/doi/pdf/10.1080/00150190500328635
• المؤسسة: Universiti Malaya

The pyroelectric properties of a ferroelectric 0-3 composite in the vicinity of the matrix Curie temperature is examined theoretically by incorporating the effects of interfacial charge. A dip predicted in the pyroelectric coefficient as a function of temperature of the composite is associated with the contribution of the secondary pyroelectric effect and/or with incomplete charge compensation of the polarization heterogeneity. At the Curie point of the matrix, the magnitude of the secondary pyroelectric coefficient may be relatively large and cannot be neglected.