Phase stability after an electric-field poling inPb(Mg1∕3Nb2∕3) | Zendy

ChiShun Tu | Zendy; R. R. Chien | Zendy; F.-T. Wang | Zendy; V. Hugo Schmidt | Zendy; Pengju Han | Zendy

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Phase stability after an electric-field poling inPb(Mg1∕3Nb2∕3)

Author(s) -

ChiShun Tu,

R. R. Chien,

F.-T. Wang,

V. Hugo Schmidt,

Pengju Han

Publication year - 2004

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.70.220103

Subject(s) - poling , monoclinic crystal system , dielectric , materials science , electric field , phase transition , phase (matter) , condensed matter physics , thermal stability , crystallography , physics , crystal structure , ferroelectricity , optoelectronics , quantum mechanics , chemistry

This work concerns phase thermal stability in (001)-cut PbsMg1/3Nb2/3d1−xTixO3 crystals after an electric sEd-field poling, which is crucial for piezoelectric applications. Dielectric properties have been measured as functions of Ti content(x=24, 26, 27, 29, 35, and 38% ), E-field strength, temperature, and poling process. Domain structures after poling have also been observed by polarizing microscopy. An extra dielectric anomaly, which is mostly associated with the appearance of monoclinic domains, was observed during zero-field heating after poling. A prior poling can reveal a “hidden” phase transition which was not clear in unpoled samples. The monoclinic phase plays an essential role in bridging higher symmetries while phase transitions are taking place.

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