The Structure, Dielectric, and Optical Properties of c-Oriented SBN-50 Films Grown on Pt/Al2O3 Substrate


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Studies of the structure, dielectric and optical properties of thin films of a relaxor ferroelectric Ba0.5Sr0.5Nb2O6 grown on Pt(111)/Al2O3 (c-cut) substrate by high-frequency RF-sputtering in oxygen atmosphere, were performed. X-ray diffraction studies showed that Ba0.5Sr0.5Nb2O6 films are c-oriented. The unit cell parameters in the tetragonal approximation were c = 3.949(1) Å and a = 12.38(1) Å. It was established that the ferroelectric–paraelectric phase-transition temperature rises and optical anisotropy increases in the object in comparison with the bulk material. Reasons for the elucidated regularities are discussed.

作者简介

A. Pavlenko

Southern Scientific Center; Southern Federal University

编辑信件的主要联系方式.
Email: antvpr@mail.ru
俄罗斯联邦, Rostov-on-Don, 344006; Rostov-on-Don, 344006

A. Kovtun

Southern Scientific Center

Email: antvpr@mail.ru
俄罗斯联邦, Rostov-on-Don, 344006

S. Zinchenko

Southern Scientific Center; Southern Federal University

Email: antvpr@mail.ru
俄罗斯联邦, Rostov-on-Don, 344006; Rostov-on-Don, 344006

D. Stryukov

Southern Scientific Center; Southern Federal University

Email: antvpr@mail.ru
俄罗斯联邦, Rostov-on-Don, 344006; Rostov-on-Don, 344006

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