Experimental Measurement of Electric Conductivity and Activation Energy in Congruent Lithium Niobate Crystal

Bachir Chikh-Bled (1) , Boumédiene Benyoucef (2) , Michel Aillerie (3)

1 URMER Tlemcen Algérie
2 URMER, Tlemcen Algérie
3 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes

Dielectric conductivity of congruent lithium niobate (LiNbO3, LN) crystals was characterized by the classical method using a guard electrode on one face of the sample. The dielectric characterizations of samples are performed by current-tension measurements in the 160-300ºC temperature range. The activation energy of LN crystals is deduced by calculation from the obtained characterization experimental results. The method presented in this paper doesn't constitute a novelty itself but the overall process yielding to the determination of the activation energy of LN is originally presented, started from sample preparation to the final calculation and modeling.

Domaines: Optique [physics.optics]

Bachir Chikh-Bled, Boumédiene Benyoucef, Michel Aillerie. Experimental Measurement of Electric Conductivity and Activation Energy in Congruent Lithium Niobate Crystal. Journal of Active and Passive Electronic Devices, 2012, 7 (3), pp.261-270. ⟨hal-00699509⟩