RAMAN-SPECTROSCOPIC STUDY OF ORDER-DISORDER IN LEAD MAGNESIUM NIOBATE

被引：77
作者：
IDINK, H
WHITE, WB
机构：
[1] Materials Research Laboratory, Pennsylvania State University, University Park
来源：
JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 03期
关键词：
D O I：
10.1063/1.357697
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Precision Raman spectra have been measured on lead magnesium niobate (PMN)-lead titanate (PT) solid solution at various temperatures. The multiband Raman spectra are inconsistent with Pm3m symmetry but can be accommodated within a model of ordered nanodomains of rhombohedral symmetry. Raman band widths are large and nearly independent of temperature indicating a static structural disorder rather than a dynamic dipolar disorder. Abrupt changes in wave number and widths of certain bending modes at 200 K are interpreted as evidence for a reversible phase transition at this temperature. All of the spectroscopic properties are largely independent of the titanium concentration in the PMN-PT solid solutions.
引用
收藏
页码：1789 / 1793
页数：5
相关论文
共 25 条
  • [1] [Anonymous], 1969, STRUCTURE PROPERTIES
  • [2] ARNDT H, 1988, FERROELECTRICS, V79, P145
  • [3] RAMAN-SPECTRA OF STOICHIOMETRIC AND DEFECT RUTILE
    BETSCH, RJ
    PARK, HL
    WHITE, WB
    [J]. MATERIALS RESEARCH BULLETIN, 1991, 26 (07) : 613 - 622
  • [4] HARD-MODE RAMAN-SPECTROSCOPY AND STRUCTURAL PHASE-TRANSITION IN THE RELAXOR FERROELECTRIC LEAD SCANDIUM TANTALATE, PB(SC0.5TA0.5)O3
    BISMAYER, U
    DEVARAJAN, V
    GROVES, P
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (39) : 6977 - 6986
  • [5] X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE DIFFUSE PHASE-TRANSITION IN PBMG1/3NB2/3O3 CERAMICS
    BONNEAU, P
    GARNIER, P
    CALVARIN, G
    HUSSON, E
    GAVARRI, JR
    HEWAT, AW
    MORELL, A
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1991, 91 (02) : 350 - 361
  • [6] ON THE STRUCTURAL STUDY OF PB2SCTAO6-TYPE CRYSTALS BY ANALYTICAL ELECTRON-MICROSCOPY AND RAMAN-SCATTERING
    BOULESTEIX, C
    CARANONI, C
    KANG, CZ
    SAPOZHNIKOVA, LS
    SINY, IG
    SMIRNOVA, TA
    [J]. FERROELECTRICS, 1990, 107 : 241 - 246
  • [7] A FIELD-INDUCED PHASE-TRANSITION IN PMN CERAMICS
    BUTCHER, SJ
    DAGLISH, M
    [J]. FERROELECTRICS LETTERS SECTION, 1989, 10 (04) : 117 - 124
  • [8] STRUCTURAL STUDY OF A POLED PBMG1/3NB2/3O3 CERAMIC AT LOW-TEMPERATURE
    DEMATHAN, N
    HUSSON, E
    CALVARIN, G
    MORELL, A
    [J]. MATERIALS RESEARCH BULLETIN, 1991, 26 (11) : 1167 - 1172
  • [9] A STRUCTURAL MODEL FOR THE RELAXOR PBMG1/3NB2/3O3 AT 5-K
    DEMATHAN, N
    HUSSON, E
    CALVARIN, G
    GAVARRI, JR
    HEWAT, AW
    MORELL, A
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (42) : 8159 - 8171
  • [10] ALKALINE EARTH-TANTALUM-OXYGEN PHASES INCLUDING CRYSTAL STRUCTURE OF AN ORDERED PEROVSKITE COMPOUND, BA3SRTA2O9
    GALASSO, F
    BARRANTE, JR
    KATZ, L
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1961, 83 (13) : 2830 - &
123