Ferroelectricity in potassium dihydrogen phosphate

Piezoelectricity;

Finlayson, David M. ; Allen, J. F. ; Allen, J. F.

University:University of St Andrews

Department:Physics & Astronomy (School of)

关键词: Piezoelectricity;   

Others  :  https://research-repository.st-andrews.ac.uk/bitstream/handle/10023/14635/DavidFinlaysonPhDThesis.pdf?sequence=2&isAllowed=y

来源: DR-NTU

【 摘 要 】

A brief survey of ferroelectrics and a statement of the purpose of the present research are given. The necessary piezoelectric equations are developed and, using Mueller’s theory of Rochelle salt as a basis, a phenomenological theory for potassium dihydrogen phosphate is worked out. Measurements of the electro-mechanical constants in the Curie region are reported. The experimental results are discussed in terms of the phenomenological theory and compared with a theory proposed by W.P.Mason. Since neither offers on adequate explanation of the results, the possibility of domain wall movement is considered. Crystal growth and experimental techniques are also discussed.