Structural characteristics of a single-crystalline Sr0.75Ba0.25NbO3 electro-optic material.

Autor: Qadri, Syed, Garzarella, Anthony, Wieting, Terrence, Wu, Dong, Mahadik, Nadeemullah
Předmět:
Zdroj: Applied Physics A: Materials Science & Processing; Mar2009, Vol. 94 Issue 4, p1011-1013, 3p, 1 Black and White Photograph, 3 Graphs
Abstrakt: Sr0.75Ba0.25NbO3 (SBN-75) has the tungsten-bronze structure with a tetragonal unit cell and exhibits electro-optic properties that are important for sensors. Due to its quaternary nature, its structural uniformity, integrity, and homogeneity become important for these applications. In this paper, we present high-resolution X-ray diffraction studies of the crystalline quality and lattice parameter variation across the surface of single crystals of SBN-75. Using rocking curves, topographs, and point-wise measurements of lattice parameters, we show that these crystals have a high degree of crystalline quality and microscopic homogeneity for any electro-optic application. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index