STRUCTURAL PHASE-TRANSITIONS IN CSVF4 ABOVE ROOM-TEMPERATURE

被引：11

作者：

HIDAKA, M ^{[1
]}

WOOD, IG ^{[1
]}

GARRARD, BJ ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT PHYS,CLARENDON LAB,OXFORD OX1 3PU,ENGLAND

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 56卷 / 01期

关键词：

D O I：

10.1002/pssa.2210560139

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New structural phase transitions in CsVF4 are discovered by optical observations and X‐ray diffraction studies. The transitions occur at 152 and 242 °C and are probably both of first order. The character of the structure in each phase can be represented by a scheme of tilted VF6 octahedra. The transitions may possible be related to the condensation of soft phonons at the X and M zone‐boundary points of the tetragonal (high‐temperature) phase. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：349 / 354

页数：6

共 8 条

[1]

CHUDAKOV VS, 1972, SOV PHYS CRYSTALLOGR, V16, P813

[2] CLASSIFICATION OF TILTED OCTAHEDRA IN PEROVSKITES [J].

GLAZER, AM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1972, B 28 (NOV15) :3384-&

[3] SIMPLE WAYS OF DETERMINING PEROVSKITE STRUCTURES [J].

GLAZER, AM .

ACTA CRYSTALLOGRAPHICA SECTION A, 1975, 31 (NOV1) :756-762

[4] 2-DIMENSIONAL STRUCTURAL PHASE-TRANSITIONS OF RBFEF4 AND CSFEF4 [J].

HIDAKA, M ;

WOOD, IG ;

WANKLYN, BM ;

GARRARD, BJ .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (10) :1799-1807

[5] STRUCTURAL PHASE-TRANSITION IN CSFEF4 BELOW ROOM-TEMPERATURE [J].

HIDAKA, M ;

WOOD, IG ;

WONDRE, FR .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (20) :4179-4183

[6] STRUCTURAL PHASE-TRANSITIONS OF KMF4 (M=FE, V, TI) [J].

HIDAKA, M ;

GARRARD, BJ ;

WANKLYN, BMR .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (14) :2737-2743

[7]

HIDAKA M, UNPUBLISHED

[8]

MACIEL ACA, UNPUBLISHED

← 1 →