Near infrared absorption and dark conductivity of K1-yLiyTa1-xNbxO3 crystal

Xiaolin Tong*, Min Zhang, Amnon Yariv, Aharon Agranat, Rudolf Hofmeister, Victor Leyva

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Absorption bands in the wave-number range of 3525-3470 cm-1 have been observed in K1-yLiyTa1-xNbxO3 (KLTN) doped crystals except in crystals doped with Cu and V. These absorption bands are attributed to the O-H vibration band. The hydrogen concentration in KLTN doped crystal is controllable either by doping or by heat treatment. The activation energy of hydrogen ion migration is between 0.6 and 0.7 eV in KLTN doped crystals. The [H +] ion is identified as responsible for fixing (screening) the holographically produced electronic grating.

Original languageAmerican English
Pages (from-to)479-481
Number of pages3
JournalApplied Physics Letters
Issue number4
StatePublished - 22 Jul 1996


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