Mechanical-thermal-electric coupling and irreversibility of ferroelectric phase transitions

作者：Ai Shu Tao^*

来源：Ferroelectrics, 2007, 350: 81-92.

DOI：10.1080/00150190701369925

• ferroelectric phase transition
• irreversible thermodynamics
• mechanical-thermal-electric coupling
• thermal hysteresis

The mechanical-thermal-electric coupling of ferroelectric phase transitions was studied as an extension of the thermal-electric coupling of them. In addition to the inner electric field, we introduced the nominal volume force and stress to characterize the actions of mechanical-thermal-electric coupling. The local entropy production was derivedfor a ferroelectric phase transition system. Based on the principle of minimum entropy production and the Onsager relations, the local properties of first-order ferroelectric phase transitions were described well. The relation between latent heat and spontaneous polarization was given. After all, compared with the classical theory, the thermal hysteresis was explainedfrom a completely-different point of view.

• 出版日期2007
• 单位临沂大学