UNIFIED SETTING AND SYMBOLS OF SUPERSPACE GROUPS FOR COMPOSITE CRYSTALS

被引：70

作者：

YAMAMOTO, A

机构：

[1] National Institute for Research in Inorganic Materials, Tsukuba 305

来源：

ACTA CRYSTALLOGRAPHICA SECTION A | 1992年 / 48卷

关键词：

D O I：

10.1107/S010876739200014X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A unified setting of the unit vectors in superspace groups for composite crystals is discussed. It simplifies the description of composite crystals and gives a systematic method for analyzing composite crystals in a manner similar to modulated structure analysis. The setting is generally different from the standard setting for modulated structures. The reflection conditions specific to it are given. The equivalence relation of the superspace groups for composite crystals is introduced. This is different from that for modulated substructures and leads to new symbols for the superspace groups of composite crystals.

引用

页码：476 / 483

页数：8

共 18 条

[1] PSEUDO-SYMMETRY OF MODULATED CRYSTAL-STRUCTURES [J].

DEWOLFF, PM .

ACTA CRYSTALLOGRAPHICA SECTION A, 1974, A 30 (NOV1) :777-785

[2]

Hahn T., 1983, INT TABLES CRYSTALLO, VA. D

[3] SYMMETRY OF INCOMMENSURATE CRYSTAL PHASES .2. INCOMMENSURATE BASIC STRUCTURE [J].

JANNER, A ;

JANSSEN, T .

ACTA CRYSTALLOGRAPHICA SECTION A, 1980, 36 (MAY) :408-415

[4] SUPERSPACE GROUPS [J].

JANNER, A ;

JANSSEN, T .

PHYSICA A, 1979, 99 (1-2) :47-76

[5] STRUCTURE REFINEMENT OF COMPOSITE CRYSTALS IN MULTIDIMENSIONAL SPACE [J].

KATO, K .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1990, 46 :39-44

[6] STRUCTURE OF THE INCOMMENSURATE COMPOSITE CRYSTAL (PBS)1.12VS2 [J].

ONODA, M ;

KATO, K ;

GOTOH, Y ;

OOSAWA, Y .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1990, 46 :487-492

[7] REFINEMENT OF STRUCTURES OF THE COMPOSITE CRYSTALS BAXFE2S4 (X = 10/9 AND 9/8) IN 4-DIMENSIONAL FORMALISM [J].

ONODA, M ;

KATO, K .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :630-634

[8] ELASTIC NEUTRON-SCATTERING OF THE PHASE ORDERING PHASE-TRANSITION IN HG3-DELTA ASF6 [J].

POUGET, JP ;

SHIRANE, G ;

HASTINGS, JM ;

HEEGER, AJ ;

MIRO, ND ;

MACDIARMID, AG .

PHYSICAL REVIEW B, 1978, 18 (07) :3645-3656

[9] BASIC THEOREMS OF VECTOR SYMMETRY IN CRYSTALLOGRAPHY [J].

SADANAGA, R ;

OHSUMI, K .

ACTA CRYSTALLOGRAPHICA SECTION A, 1979, 35 (JAN) :115-122

[10]

UKEI K, 1992, UNPUB ACTA CRYST

← 1 2 →