Variation of ordered arrangement of atoms in incommensurate Ca2CoSi2O7 accompanied by change of modulation wavelength

被引:1
作者
Kusaka, K [1 ]
Hagiya, K
Ohmasa, M
Iishi, K
机构
[1] Himeji Inst Technol, Dept Life Sci, Hyogo, Japan
[2] Yamaguchi Univ, Dept Chem & Earth Sci, Yamaguchi, Japan
关键词
D O I
10.1080/00150190108225037
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A program to visualize an incommensurate structure in the three-dimensional space has been developed and applied to study the changes of long range order in the incommensurate structure Of Ca2CoSi2O7 with respect to the variation of the components q of the modulation wave vectors. The results indicate that the incommensurate structure is characterized by variations of the octagonal distribution of bundles along c that are formed by four arrays of six-coordinated Ca-O polyhedra surrounding a central array of CoO4 tetrahedra.
引用
收藏
页码:79 / 82
页数:4
相关论文
共 6 条
[1]   THE MODULATED STRUCTURE OF SYNTHETIC CO-AKERMANITE, CA2COSI2O7 [J].
HAGIYA, K ;
OHMASA, M ;
IISHI, K .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1993, 49 :172-179
[2]  
KUSAKA K, 1999, THESIS HIMEJI I TECH
[3]  
KUSAKA K, 1998, MINERAL J, V21, P6
[4]   Phase transitions of modulated Co-akermanite, Ca2CoSi2O7 [J].
Riester, M ;
Bohm, H .
ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1997, 212 (07) :506-509
[5]  
RIESTER M, 1998, P INT C AP CRYST AP, P593
[6]   A COMMENSURATE-INCOMMENSURATE PHASE-TRANSITION IN IRON-BEARING AKERMANITES [J].
SEIFERT, F ;
CZANK, M ;
SIMONS, B ;
SCHMAHL, W .
PHYSICS AND CHEMISTRY OF MINERALS, 1987, 14 (01) :26-35