Growth of PZN crystals with improved optical quality using the BSFT technique

Author

Erdei, S. ; Schlecht, R.G. ; Kovács, L.

Author_Institution

Lasergenics Corp., San Jose, CA, USA

Volume

2

fYear

2000

fDate

2000

Firstpage

541

Abstract

The bottom seeded fluxothermal (BSFT) high temperature solution growth technique was used to grow PZN [Pb(Zn_1/3Nb_2/3)O₃] relaxor crystals. This method can separate the perovskite and pyrochlore phases, decrease the spontaneous nucleation and increase the thermodynamic driving force resulting in larger crystals than can be obtained by the conventional slow cooling techniques. The BSFT technique can also improve the quality of the structural and morphological characteristics, which has been demonstrated by visual observation, XRD, Raman, UV-VIS, and IR absorption measurements. These PZN crystals have less distortion in the unit cell, high optical transparency in the 390mn-5700nm range, and improved Pb related stoichiometry

Keywords

Raman spectra; X-ray diffraction; crystal growth from solution; crystal structure; ferroelectric materials; infrared spectra; lead compounds; stoichiometry; transparency; ultraviolet spectra; visible spectra; 390 to 5700 nm; BSFT technique; IR absorption; PZN relaxor crystals; Pb stoichiometry; Pb(Zn_1/3Nb_2/3)O₃; PbZnO₃NbO₃; Raman measurements; UV-VIS measurements; XRD; bottom seeded fluxothermal high temperature solution growth technique; distortion; high optical transparency; morphological characteristics; perovskite phases; pyrochlore phases; spontaneous nucleation; structural characteristics; thermodynamic driving force; unit cell; visual observation; Cooling; Crystals; Distortion measurement; Electromagnetic wave absorption; Niobium; Optical distortion; Temperature; Thermal force; Thermodynamics; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on

Conference_Location

Honolulu, HI

ISSN

1099-4734

Print_ISBN

0-7803-5940-2

Type

conf

DOI

10.1109/ISAF.2000.942378

Filename

942378