Optical absorption edge and some shallow donor levels in LiNbO3 systems

被引：0
|
作者：
Corradi, G. [1 ]
Kovács, L. [1 ]
Zaritskii, I.M. [2 ,3 ]
机构：
[1] Crystal Physics Laboratory, Res. Inst. Solid State Phys. Opt., Hungarian Academy of Sciences, P.O. Box 49, Budapest, H-1525, Hungary
[2] Institute of Semiconductor Physics, Ukrainian Natl. Academy of Sciences, 252650 Kiev, Ukraine
[3] VEECO Instruments Inc., 1 Terminal Drive, Plainview, NY 11803, United States
来源：
Radiation Effects and Defects in Solids | 1999年 / 150卷 / 1 -4 pt 2期
关键词：
Band structure - Charge transfer - Crystal impurities - Electron energy levels - Light absorption - Stoichiometry - Ultraviolet radiation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In LiNbO3 the position of the conduction band edge formed by Nb 4d states strongly depends on the presence of antisite niobiums (Nb on Li site) lowering the band edge. Based on this property the measurement of the UV absorption edge can be used for determining the Li/Nb ratio in the crystal with high precision, especially in the near-stoichiometric region where the relative precision is 0.01 mol%. The same Nb states can form shallow donor levels due to nearby impurities and/or the polaron effect. Charge transfer processes between Nb5+/4+ polaron and Ti4+/3+ shallow donor levels and Jahn-Teller effects of the involved d1 paramagnetic states have been observed in reduced LiNbO3:Mg:Ti and are compared with literature results in LiNbO3:Ti.
引用
收藏
相关论文
共 50 条
  • [41] CONTRIBUTING BANDS TO THE OPTICAL-ABSORPTION OF REDUCED LINBO3 - THERMAL AND OPTICAL-EXCITATION
    GARCIACABANES, A
    DIEGUEZ, E
    CABRERA, JM
    AGULLOLOPEZ, F
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (36) : 6453 - 6462
  • [42] EPR and optical studies of LiNbO3:Yb and LiNbO3:Yb, Pr single crystals
    Bodziony, T.
    Kaczmarek, S. M.
    Hanuza, J.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 451 (1-2) : 240 - 247
  • [43] All-optical wavelength conversion in MgO:LiNbO3 and LiNbO3:: A study of photorefraction
    Batchko, RG
    Alfrey, T
    Roussev, R
    Sher, MH
    Kim, SS
    Marshall, LR
    ADVANCED SOLID-STATE LASERS, PROCEEDINGS, 2002, 68 : 566 - 569
  • [44] Calculation of some spectroscopic parameters of LiNbO3:Er3+ optical waveguides
    Puscas, NN
    Ducariu, A
    Constantin, GC
    Dinu, D
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2005, 7 (02): : 1057 - 1064
  • [45] Evaluation of some optical parameters which characterize the Er3+:LiNbO3 optical waveguides
    Dinu, D.
    Dontu, S.
    Puscas, L. A.
    Puscas, N. N.
    ADVANCED TOPICS IN OPTOELECTRONICS, MICROELECTRONICS, AND NANOTECHNOLOGIES V, 2010, 7821
  • [46] Ion-irradiation influence on optical absorption spectra of MgO:LiNbO3 and MgO+Fe2O3:LiNbO3 single crystals
    Kim, IW
    Park, BC
    Jin, BM
    Jeong, JH
    Lee, KS
    FERROELECTRICS, 2002, 269 : 243 - 248
  • [47] Effects of ionizing radiation on the optical absorption of LiNbO3 and YAlO3 single crystals
    Frukacz, Z
    Lukasiewicz, T
    Matkowskii, A
    Pracka, I
    Sugak, D
    Solskii, I
    Vasylechko, L
    Durygin, A
    JOURNAL OF CRYSTAL GROWTH, 1996, 169 (01) : 98 - 101
  • [48] Optical absorption spectroscopy of Fe2+ and Fe3+ ions in LiNbO3
    Basun, SA
    Evans, DR
    Bunning, TJ
    Guha, S
    Barnes, JO
    Cook, G
    Meltzer, RS
    JOURNAL OF APPLIED PHYSICS, 2002, 92 (12) : 7051 - 7055
  • [49] OPTICAL-ABSORPTION AND INTERBAND FARADAY-ROTATION IN LITAO3 AND LINBO3
    KASE, S
    OHI, K
    FERROELECTRICS, 1974, 8 (1-2) : 419 - 420
  • [50] OPTICAL-ABSORPTION, EXCITATION, AND EMISSION-SPECTRA OF EU-3+ IN LINBO3
    ARIZMENDI, L
    CABRERA, JM
    PHYSICAL REVIEW B, 1985, 31 (11): : 7138 - 7145
12345