Electrooptic Crystal Growth and Properties

Abstract

A new member in the tungsten-bronze family of ferroelectric lead- potassium-niobate (PKN), with general formula PB(1-x)K(2x)Nb(2)O(6), has been grown as bulk single crystal. Growth of PKN with charge composition x = 0.23 has been achieved using the Czochralski technique of crystal pulling. Large diameter boules were grown in platinum crucibles at temperatures between 1280 deg C and 1300 deg C. Crystallographic studies were conducted using X-ray diffraction techniques. The samples were characterized for ferroelectric properties between 25 deg C and 600 deg C and for optical absorption. This paper presents the crystal synthesis and the results of ferroelectric and optical characterization.

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Document Details

Document Type
Technical Report
Publication Date
Feb 04, 1994
Accession Number
ADA276023

Entities

Organizations

  • Texas Engineering Experiment Station

Tags

DTIC Thesaurus Topics

  • Crucibles
  • Crystal Growth
  • Crystal Structure
  • Crystals
  • Curie Temperature
  • Dielectric Permittivity
  • Diffraction
  • Measurement
  • Phase Transformations
  • Piezoceramics
  • Polarization
  • Radiation
  • Solid Solutions
  • Surface Acoustic Waves
  • Transitions
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.