Mechanisms of Variation of the Unipolarity during Thermal Processing of Heavily Doped LiNbO3:ZnO Crystals

被引：1
|
作者：
Palatnikov, M. N. [1 ]
Sandler, V. A. [1 ]
Sidorov, N. V. [1 ]
Makarova, O. V. [1 ]
机构：
[1] Russian Acad Sci, Tananaev Inst Chem & Technol Rare Elements & Mine, Fed Res Ctr Kola Sci Ctr, Apatity 184209, Russia
来源：
TECHNICAL PHYSICS | 2020年 / 65卷 / 08期
关键词：
PIEZOELECTRIC PROPERTIES; ELECTRICAL-CONDUCTIVITY; ANOMALIES;
D O I：
10.1134/S1063784220080149
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The phenomenological mechanisms for increasing the unipolarity under thermal processing in the short-circuiting conditions for heavily doped LiNbO3:ZnO crystals are analyzed by comparing with the temperature behavior of nominally pure LiNbO3:ZnO crystals with the congruent composition. It is shown that an increase in the unipolarity and, hence, the disappearance of the domain structure in heavily doped LiNbO3:ZnO crystals is initiated by thermal decomposition of charged polar clusters stabilizing domain walls. The decomposition of polar clusters is accompanied with an abrupt jumpwise injection of extra charge carriers (Li(+)cations). As a result, the conductivity of LiNbO3:ZnO crystals at a temperature above 800 K is an order of magnitude higher than that of nominally pure LiNbO(3)crystals with the congruent composition. This leads to the degradation of the domain structure in LiNbO3:ZnO crystals in contrast to LiNbO(3)crystals with the congruent composition.
引用
收藏
页码：1246 / 1252
页数：7
相关论文
共 50 条
  • [1] Mechanisms of Variation of the Unipolarity during Thermal Processing of Heavily Doped LiNbO3:ZnO Crystals
    M. N. Palatnikov
    V. A. Sandler
    N. V. Sidorov
    O. V. Makarova
    Technical Physics, 2020, 65 : 1246 - 1252
  • [2] Growth of heavily doped LiNbO3〈Zn〉 crystals
    M. N. Palatnikov
    I. V. Biryukova
    O. V. Makarova
    V. V. Efremov
    O. E. Kravchenko
    V. I. Skiba
    N. V. Sidorov
    I. N. Efremov
    Inorganic Materials, 2015, 51 : 375 - 379
  • [3] Spontaneous unipolarity and anomalies of the dielectric and piezoelectric properties and electrical conductivity of initially heavily doped polydomain LiNbO3: Zn crystals
    Palatnikov, M. N.
    Sandler, V. A.
    Sidorov, N. V.
    Makarova, O. V.
    Biryukova, I. V.
    Efremov, I. N.
    Ivanenko, D. V.
    PHYSICS OF THE SOLID STATE, 2015, 57 (08) : 1541 - 1546
  • [4] Spontaneous unipolarity and anomalies of the dielectric and piezoelectric properties and electrical conductivity of initially heavily doped polydomain LiNbO3: Zn crystals
    M. N. Palatnikov
    V. A. Sandler
    N. V. Sidorov
    O. V. Makarova
    I. V. Biryukova
    I. N. Efremov
    D. V. Ivanenko
    Physics of the Solid State, 2015, 57 : 1541 - 1546
  • [5] Methods for Controlling the Degree of Unipolarity of Large LiNbO3 Crystals
    M. N. Palatnikov
    V. A. Sandler
    N. V. Sidorov
    I. N. Efremov
    O. V. Makarova
    Instruments and Experimental Techniques, 2020, 63 : 383 - 387
  • [6] OH absorption spectra in heavily Mg-doped LiNbO3 crystals
    Feng, Xiqi
    Tang, Tongbo
    Wuji Cailiao Xuebao/Journal of Inorganic Materials, 1993, 8 (03): : 273 - 280
  • [7] Configuration of (MgNb) defects in heavily Mg-doped LiNbO3 single crystals
    Kim, IW
    Moon, BG
    Jeong, JJ
    Park, HL
    Pichugin, VF
    MATERIALS LETTERS, 2001, 49 (06) : 324 - 326
  • [8] Domain formation in heavily doped LiNbO3:Mg crystals exposed to an electron beam
    L. S. Kokhanchik
    E. V. Emelin
    M. N. Palatnikov
    Inorganic Materials, 2015, 51 : 607 - 612
  • [9] Domain formation in heavily doped LiNbO3:Mg crystals exposed to an electron beam
    Kokhanchik, L. S.
    Emelin, E. V.
    Palatnikov, M. N.
    INORGANIC MATERIALS, 2015, 51 (06) : 607 - 612
  • [10] Comparative study on optical properties of Yb3+ doped LiNbO3: MgO and LiNbO3:ZnO laser crystals
    Ning, Kaijie
    Li, Baizhong
    Zhang, Qingli
    Hang, Yin
    Shi, Zhenhua
    OPTICS COMMUNICATIONS, 2015, 349 : 94 - 97
12345