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Ferroelectrics Volume 371, 2008 - Issue 1
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SECTION A: FERROELECTRICS, RELAXORS AND PIEZOELECTRICS

Ionic Conduction Properties in PbK2LiNb5O15

Y. Gagou LPMC, Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039, Amiens Cedex, France
,
M. Frémy L2MP, Université du Sud Toulon-Var, Av. de l'Univ., 83957, La Garde Cedex, France
,
T. Badèche Invited in the LPMC
,
D. Mezzane LMCN, FSTG, University Cadi Ayyad Marrakech, Morocco
,
H. Choukri LMCN, FSTG, University Cadi Ayyad Marrakech, Morocco
&
P. Saint-Gregoire The University of Nîmes, Department of Sciences, 30021, NIMES Cedex 01, France
Pages 17-20 | Accepted 24 May 2008, Published online: 20 Sep 2010
 
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Abstract

Ionic conduction is evidenced in PbK2LiNb5O15 single crystal using electric impedance measurements. The phase transition is of first order type and it occurs around 640 K as evidenced by a discontinuity accompanied by a hysteresis of about 10 K, and a global hysteresis up to 720 K. The ionic conduction is attributed to Li+ ion mobility through the structural tunnels by a hoping mechanism.

Acknowledgment

This work is supported by France Foreign Ministry under N°AI/MA/07/165.

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