Stoichiometry and doping effects on cation ordering in LiNbO3 crystals

被引：0
|
作者：
E. P. Fedorova
L. A. Aleshina
N. V. Sidorov
P. G. Chufyrev
A. A. Yanichev
M. N. Palatnikov
V. M. Voskresenskii
V. T. Kalinnikov
机构：
[1] Petrozavodsk State University,Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
[2] Russian Academy of Sciences,undefined
来源：
Inorganic Materials | 2010年 / 46卷
关键词：
Lithium Niobate; Polar Axis; Lithium Niobate Crystal; Vacancy Model; Cation Order;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The cation disorder in stoichiometric and congruent lithium niobate crystals and also in congruent crystals doped with Y3+ or Gd3+ has been studied by X-ray diffraction and Raman scattering spectroscopy using vacancy models. The results indicate that the structural disordering induced by doping with Y3+, revealed by both X-ray diffraction and Raman spectroscopy, can be understood in terms of the mechanism of yttrium incorporation into the cation sublattice of the crystal. Yttrium substitution for Nb5+ on its normal lattice site causes Nb5+ to occupy vacant octahedra, thereby increasing the cation and vacancy disorder along the polar axis and distorting the octahedra because the ionic radius of Y3+ exceeds that of Nb5+.
引用
收藏
页码：206 / 211
页数：5
相关论文
共 50 条
  • [1] Stoichiometry and doping effects on cation ordering in LiNbO3 crystals
    Fedorova, E. P.
    Aleshina, L. A.
    Sidorov, N. V.
    Chufyrev, P. G.
    Yanichev, A. A.
    Palatnikov, M. N.
    Voskresenskii, V. M.
    Kalinnikov, V. T.
    INORGANIC MATERIALS, 2010, 46 (02) : 206 - 211
  • [2] The Cation Sublattice Ordering in the Ferroelectric LiNbO3:Zn Single Crystals
    Palatnikov, M. N.
    Sidorov, N. V.
    Yanichev, A. A.
    Gabain, A. A.
    Kruk, A. A.
    Bormanis, K. Ya.
    Shur, V. Ya.
    FERROELECTRICS, 2014, 462 (01) : 192 - 198
  • [3] The effect of stoichiometry and Mg doping on the Raman spectra of LiNbO3:Mg crystals
    K. Lengyel
    L. Kovács
    Á. Péter
    K. Polgár
    G. Corradi
    Applied Physics B, 2007, 87 : 317 - 322
  • [4] The effect of stoichiometry and Mg doping on the Raman spectra of LiNbO3:Mg crystals
    Lengyel, K.
    Kovacs, L.
    Peter, A.
    Polgar, K.
    Corradi, G.
    APPLIED PHYSICS B-LASERS AND OPTICS, 2007, 87 (02): : 317 - 322
  • [5] Conversion of non-stoichiometry of LiNbO3 to constitutional stoichiometry by impurity doping
    Kimura, Hiromitsu
    Uda, Satoshi
    JOURNAL OF CRYSTAL GROWTH, 2009, 311 (16) : 4094 - 4101
  • [6] Photorefractive effect in LiNbO3 crystals enhanced by stoichiometry control
    Journal of Applied Physics, 1997, 82 (03):
  • [7] GROWTH, STOICHIOMETRY AND PROPERTIES OF LINBO3 SINGLE-CRYSTALS
    POLGAR, K
    JESZENSZKY, L
    RAKSANYI, K
    HARTMANN, E
    ACTA PHYSICA ACADEMIAE SCIENTIARUM HUNGARICAE, 1979, 47 (1-3): : 125 - 132
  • [8] Photorefractive effect in LiNbO3 crystals enhanced stoichiometry control
    Kitamura, K
    Furukawa, Y
    Ji, Y
    Zgonik, M
    Medrano, C
    Montemezzani, G
    Gunter, P
    JOURNAL OF APPLIED PHYSICS, 1997, 82 (03) : 1006 - 1009
  • [9] Influence of doping on OH absorption in LiNbO3 crystals
    Choubey, R. K.
    Khattak, B. Q.
    Kar, S.
    Ramshankar, P.
    Sen, P.
    Bartwal, K. S.
    CRYSTAL RESEARCH AND TECHNOLOGY, 2007, 42 (07) : 718 - 722
  • [10] Optimisation of chromium doping in LiNbO3 single crystals
    Kar, S
    Bhatt, R
    Bartwal, KS
    Wadhawan, VK
    CRYSTAL RESEARCH AND TECHNOLOGY, 2004, 39 (03) : 230 - 234
12345