TY - GEN
T1 - Study of OH absorption mode due to domain inversion in lithium niobate crystals
AU - Tsai, P. C.
AU - Chia, C. T.
AU - Lu, H. F.
AU - Lin, S. H.
PY - 2007
Y1 - 2007
N2 - Recently, the significant change of OH spectra of highly Mg-doped LiNbO3 during polarization reversal process have been found experimentally. However, there is no proper theory and model to explain the unusual phenomena. Based on the Nb-vacancy model, the OH absorption band for highly Zn and Mg doped LiNbO3 single crystals under coercive field were calculated. Theoretical investigation of OH absorption band under the forward and back coercive field are also investigated. Our result shows the Zn2+ and Mg2+ ions sit at Li lattice sites for highly doped LiNbO3 single crystals. The theoretical prediction of the disappearing and the reappearing of the OH absorption band after polarization reversal agrees well with the experimental result, and this indicates that Zn2+ and Mg2+ ions do not substitute the Nb-lattice sites.
AB - Recently, the significant change of OH spectra of highly Mg-doped LiNbO3 during polarization reversal process have been found experimentally. However, there is no proper theory and model to explain the unusual phenomena. Based on the Nb-vacancy model, the OH absorption band for highly Zn and Mg doped LiNbO3 single crystals under coercive field were calculated. Theoretical investigation of OH absorption band under the forward and back coercive field are also investigated. Our result shows the Zn2+ and Mg2+ ions sit at Li lattice sites for highly doped LiNbO3 single crystals. The theoretical prediction of the disappearing and the reappearing of the OH absorption band after polarization reversal agrees well with the experimental result, and this indicates that Zn2+ and Mg2+ ions do not substitute the Nb-lattice sites.
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U2 - 10.1109/ISAF.2007.4393254
DO - 10.1109/ISAF.2007.4393254
M3 - Conference contribution
AN - SCOPUS:51349148131
SN - 1424413338
SN - 9781424413331
T3 - IEEE International Symposium on Applications of Ferroelectrics
SP - 324
EP - 325
BT - 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF
T2 - 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF
Y2 - 27 May 2007 through 31 May 2007
ER -