Thermal Dissociation of Bipolarons in Reduced Undoped LiNbO3
作者： J Koppitz , O. F Schirmer , A. I Kuznetsov
DOI: 10.1209/0295-5075/4/9/017
关键词: Lithium niobate 、 Ferroelectricity 、 Absorption band 、 Inorganic compound 、 Dissociation (chemistry) 、 Polaron 、 Bipolaron 、 Molecular physics 、 Condensed matter physics 、 Materials science 、 Bond-dissociation energy
摘要: It is shown that the change of optical absorption reduced undoped LiNbO3 under heating can be explained as dissociation Nb4+-Nb4+ bipolarons. By this treatment well-known band material at 500 nm decreases in favour a new 760 nm, attributed to Nb4+ small polarons. The bipolaron energy determined 0.27 eV. Also other properties are consistent with model.
harvard.edu
sci-hub.se 参考文章(2)
The Hall effect and its applications Plenum Press. ,(1980) , 10.1007/978-1-4757-1367-1
M. G. Clark, F. J. DiSalvo, A. M. Glass, G. E. Peterson, Electronic structure and optical index damage of iron‐doped lithium niobate Journal of Chemical Physics. ,vol. 59, pp. 6209- 6219 ,(1973) , 10.1063/1.1680000