Spectroscopic methods for the determination of the composition of potassium lithium niobate crystals

I. Hajdara, K. Lengyel, G. Dravecz, L. Kovács, Á Péter, Zs Szaller

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Beside the ferroelectric Curie-temperature, the ultraviolet and infrared spectra of potassium lithium niobate (K3Li2Nb 5O15, KLN) were shown to be very sensitive to the compositional variations observed in the crystals along the growth axis. The absorption edge shifts to the UV with decreasing Nb content, independently of the K/Li ratio of the crystal, while the ratio of the intensities of the OH - stretching vibrational bands at 3440 and 3520 cm-1 depends on the K/Li ratio, as well. Combining these optical spectroscopic methods with Curie-temperature measurements one can determine the crystal composition with high accuracy.

Original languageEnglish
Pages (from-to)1321-1324
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume4
Issue number3
DOIs
Publication statusPublished - Dec 1 2007
Event10th Europhysical Conference on Defects in Insulating Materials, EURODIM 2006 - Milano, Italy
Duration: Jul 10 2006Jul 14 2006

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ASJC Scopus subject areas

  • Condensed Matter Physics

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