PHASE-TRANSITIONS IN KLISO4 AND RBLISO4+ - AN INFRARED SPECTROSCOPIC INVESTIGATION

被引:7
|
作者
VARMA, V
BHATTACHARJEE, R
FERNANDES, JR
RAO, CNR
机构
[1] Solid State and Structural Chemistry Unit Indian Institute of Science, Bangalore
关键词
D O I
10.1016/0038-1098(90)90103-I
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Infrared spectroscopy shows the occurrence of a transition to a phase of lower symmetry on cooling KLiSO4 below 170K, but there appears to be no change in the point group symmetry of the SO42- ion across the C66-C43v transition around 200K. Infrared spectra characteristic of the various phases (I-V) of RbLiSO4 have been obtained. True monoclinic order in RbLiSO4 seems to be present only in the room-temperature phase (V). Bands due to the LiO4 units in both these solids have been studied through the phase transitions. © 1990.
引用
收藏
页码:627 / 630
页数:4
相关论文
共 50 条
  • [1] PHASE-TRANSITIONS IN KLISO4
    HOLUJ, F
    DROZDOWSKI, M
    FERROELECTRICS, 1981, 36 (1-4) : 379 - 382
  • [2] CRYSTAL OPTICAL STUDIES OF THE PHASE-TRANSITIONS IN KLISO4
    KLEEMANN, W
    SCHAFER, FJ
    CHAVES, AS
    SOLID STATE COMMUNICATIONS, 1987, 64 (07) : 1001 - 1004
  • [3] PRESSURE-INDUCED PHASE-TRANSITIONS IN KLISO4
    MELO, FEA
    LEMOS, V
    CERDEIRA, F
    MENDES, J
    PHYSICAL REVIEW B, 1987, 35 (07): : 3633 - 3636
  • [4] SPECIFIC-HEAT AND PHASE-TRANSITIONS IN KLISO4 CRYSTALS
    ISKORNEV, IM
    FLEROV, IN
    GOREV, MV
    KOT, LA
    GRANKINA, VA
    FIZIKA TVERDOGO TELA, 1984, 26 (10): : 3199 - 3200
  • [5] TWIN DOMAINS AND PHASE TRANSITIONS OF KLiSO4
    Klapper, H.
    Hahn, Th.
    Scherf, Ch.
    Park, H. M.
    Heger, G.
    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1996, 52 : C432 - C432
  • [6] UNUSUAL SEQUENCE OF COMMENSURATE-INCOMMENSURATE PHASE-TRANSITIONS OBSERVED IN KLISO4
    FONSECA, CHA
    RIBEIRO, GM
    GAZZINELLI, R
    CHAVES, AS
    SOLID STATE COMMUNICATIONS, 1983, 46 (03) : 221 - 225
  • [7] ROLE OF TOP OXYGEN OF SO4-TETRAHEDRON IN PHASE-TRANSITIONS OF KLISO4 CRYSTAL
    EFIMOV, VN
    IZVESTIYA AKADEMII NAUK SSSR SERIYA FIZICHESKAYA, 1992, 56 (10): : 60 - 62
  • [8] PHASE-TRANSITIONS IN RBLISO4
    STEURER, W
    WITTMANN, H
    JAGODZINSKI, H
    PIETRASZKO, A
    ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1986, 42 : 11 - 16
  • [9] NEUTRON-SCATTERING STUDY OF THE LOW-TEMPERATURE PHASE-TRANSITIONS IN KLISO4
    ECKOLD, G
    HAHN, T
    BLASCHKO, O
    KREXNER, G
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1988, 182 (1-4): : 69 - 72
  • [10] THE X-RAY STUDY OF THE HIGH-TEMPERATURE PHASE-TRANSITIONS IN KLISO4
    PIETRASZKO, A
    FERROELECTRICS, 1988, 79 : 415 - 419