Growth and dielectric and pyroelectric properties of magnesium-doped potassium lithium niobate single crystal

Zh X. Cheng, Shujun Zhang, J. R. Han, H. Ch Chen, Peilin Zhang, Weilie Zhong

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Magnesium doped potassium lithium niobate single crystal (K3Li2Nb5O15:Mg, denoted as KLN:Mg) has been grown by modified Czochralski technique. It has tetragonal tungsten bronze type structure. At room temperature, the point group is 4 mm with the lattice constants a = 1.262 nm and c = 0.398 nm. Dielectric, pyroelectric properties of a and c plates were studied in the temperature range from 10 to 700 K. The frequency dependence of dielectric constant in the frequency range 5 × 102 to 5 × 108 Hz was measured. Results reveal a paraelectric-ferroelectric phase transition near 623 K and a ferroelectric-ferroelectric phase transition near 80 K.

Original languageEnglish (US)
Pages (from-to)193-198
Number of pages6
JournalPhysica Status Solidi (A) Applied Research
Volume181
Issue number1
DOIs
StatePublished - Sep 1 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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