EXAFS study of glass transition in K1-x(NH4)xI

被引：2

作者：

Yagi, K ^{[1
]}

Sakaue, K

Terauchi, H

机构：

[1] Kwansei Gakuin Univ, Adv Res Ctr Sci, Sanda, Hyogo 6691337, Japan

[2] Kwansei Gakuin Univ, Sch Sci, Sanda, Hyogo 6691337, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2001年 / 8卷 / 02期

关键词：

EXAFS; glass transition; K1-x(NH4)(x)I;

D O I：

10.1107/S0909049500018331

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The iodine K-edge EXAFS study of K1-x(NH4)(x)I mixed crystals was performed to clarify the local structure of the dipole glass associated with the random reorientational freezing of ammonium ions. The pair-distribution function of the nearest iodine-iodine ions is strongly reduced with increasing ammonium concentration. The reduction originates in the local distortion of lattice induced by the short-range antiferroelectric order of ammonium ions. We discuss the relationship between the reorientational freezing of ammonium ions and the local distortion of lattice in comparison with the results of X-ray diffraction measurements.

引用

页码：806 / 808

页数：3

共 50 条

[41] LOCALIZED DYNAMICS OF A DIPOLAR GLASS (NH4)XK1-XI
TOMKINSON, J
DASANNACHARYA, BA
GOYAL, PS
CHAKRAVARTHY, R
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (20): : 3431 - 3433
[42] Raman scattering and phase transitions in mixed crystals K1-x(NH4)xH2PO4
Popkov, YA
Van'kevich, AV
Taranova, IA
Savchenko, EM
Shuvalov, LA
LOW TEMPERATURE PHYSICS, 1999, 25 (8-9) : 645 - 649
[43] Raman scattering and phase transitions in mixed crystals K1-x(NH4)xH2PO4
Popkov, Yu.A.
Van'kevich, A.V.
Taranova, I.A.
Savchenko, E.M.
Shuvalov, L.A.
Low Temperature Physics, 25 (8-9): : 645 - 649
[44] Neutron-scattering study of the dynamics of ammonium in different phases of halides of K1-x(NH4)xHal mixed crystals
Natkaniec, I
Smirnov, LS
Shuvalov, LA
CRYSTALLOGRAPHY REPORTS, 2005, 50 (02) : 254 - 261
[45] Dynamic and static orientational disorder in mixed K1 − x(NH4)xI crystals
L. A. Shuvalov
U. Natkaniec
L. S. Smirnov
Crystallography Reports, 2000, 45 : 270 - 276
[46] ROTATIONAL EXCITATIONS OF NH4+ ION IN THE DIPOLAR GLASS (NH4)XK1-XI
NARASIMHAN, SL
MUKHOPADHYAY, R
SOLID STATE COMMUNICATIONS, 1993, 87 (09) : 833 - 835
[47] PHASE-TRANSITIONS IN MIXED-CRYSTAL SYSTEM K1-X(NH4)XH2PO4
ONO, Y
HIKITA, T
IKEDA, T
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1987, 56 (02) : 577 - 588
[48] GLASSY DIELECTRIC BEHAVIOR IN THE MIXED-CRYSTAL SYSTEM K1-X(NH4)XH2PO4
ONO, Y
HIKITA, T
IKEDA, T
FERROELECTRICS, 1988, 79 : 621 - 624
[49] Synthesis, Crystal Structure and NLO Properties of a Mixed Crystal K1-x(NH4)xH2PO4 (x=0.5)
Parthiban, S.
Meenakshisundaram, Subbiah
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 2011, 41 (02) : 111 - 114
[50] DYNAMICS OF [K1-X(NH4]X]2CUCL4.2H2O BY LASER RAMAN-SCATTERING
BANSAL, ML
SAHNI, VC
ROY, AP
INDIAN JOURNAL OF PHYSICS AND PROCEEDINGS OF THE INDIAN ASSOCIATION FOR THE CULTIVATION OF SCIENCE, 1976, 50 (02): : 151 - 161

← 1 2 3 4 5 →