Domain structures and phase transitions of PMNT single crystals

被引：12
作者：
Hu, X. B. [1 ]
Wang, J. Y. [1 ]
Ma, L. L. [1 ]
Xu, X. G. [1 ]
Luo, H. S. [2 ]
Zhu, P. P. [3 ]
Tian, Y. L. [3 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Chinese Acad Sci, Lab Funct Inorgan Mat, Shanghai Inst Ceram, Shanghai 201800, Peoples R China
[3] Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China
来源：
JOURNAL OF CRYSTAL GROWTH | 2005年 / 275卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
X-ray topography; Bridgman technique; Ferroelectric materials;
D O I：
10.1016/j.jcrysgro.2004.11.248
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
(1-x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) (PMNT) single crystals with different ratios of PbTiO3 (PT) to Pb(Mg1/3Nb2/3)O-3 (PMN) were grown by the modified Bridgman technique. The domain structures of PMNT single crystals were investigated by transmission synchrotron topography. It was found that the PMNT single crystals possessed rhombohedral phase when the ratio of PT to PMN was smaller than 0.33. Whereas both rhombohedral and tetragonal phases coexisted in PMNT single crystal when the ratio of PT to PMN reached 0.33. In the meantime, the distinct morphotropic phase boundary was observed. The variations of dielectric constant with temperature for PMNT single crystals were measured by HP-4284A LCR meter. Two phase transitions: rhombohedral (3 m)-> tetragonal (4 mm)-> cubic (m3 m) occurred at various temperatures for PMNT crystals with different PT contents. Low PT content corresponds to high rhombohedral to tetragonal and low tetragonal to cubic phase transition temperature, respectively. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：E1703 / E1706
页数：4
相关论文
共 8 条
  • [1] MORPHOTROPIC PHASE BOUNDARY IN RELAXOR FERROELECTRIC Pb(Mg1/3Nb2/3)O3-PbTiO3 CERAMICS
    Choi, S. W.
    Jung, J. M.
    Bhalla, A. S.
    [J]. FERROELECTRICS, 1996, 189 : 27 - 38
  • [2] MORPHOTROPIC PHASE-BOUNDARY IN PB(MG1/3NB2/3)O3-PBTIO3 SYSTEM
    CHOI, SW
    SHROUT, TR
    JANG, SJ
    BHALLA, AS
    [J]. MATERIALS LETTERS, 1989, 8 (6-7) : 253 - 255
  • [3] High-temperature solution growth and characterization of the piezo-/ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 [PMNT] single crystals
    Dong, M
    Ye, ZG
    [J]. JOURNAL OF CRYSTAL GROWTH, 2000, 209 (01) : 81 - 90
  • [4] Hahn L., 1978, JPN J APPL PHYS, V637, P1
  • [5] LUO H, 1999, FERROELECTRICS, V231, P97
  • [6] Compositional homogeneity and electrical properties of lead magnesium niobate titanate single crystals grown by a modified Bridgman technique
    Luo, HS
    Xu, GS
    Xu, HQ
    Wang, PC
    Yin, ZW
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2000, 39 (9B): : 5581 - 5585
  • [7] Morphotropic domain structures and phase transitions in relaxor-based piezo-/ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystals
    Ye, ZG
    Dong, M
    [J]. JOURNAL OF APPLIED PHYSICS, 2000, 87 (05) : 2312 - 2319
  • [8] Dielectric and piezoelectric performance of PMN-PT single crystals with compositions around the MPB: influence of composition, poling field and crystal orientation
    Zhao, XY
    Fang, BJ
    Cao, H
    Guo, YP
    Luo, HS
    [J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2002, 96 (03): : 254 - 262
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