A single-crystal neutron scattering study of lattice melting in ferroelastic Na2CO3

被引：10

作者：

Harris, MJ

Dove, MT

Godfrey, KW

机构：

[1] UNIV CAMBRIDGE,DEPT EARTH SCI,MINERAL PHYS GRP,CAMBRIDGE CB2 3EQ,ENGLAND

[2] CLARENDON LAB,OXFORD OX1 3PU,ENGLAND

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1996年 / 8卷 / 38期

关键词：

D O I：

10.1088/0953-8984/8/38/012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present the results of an extensive single-crystal neutron scattering study of the ferroelastic phase transition in Na2CO3. This material has previously been demonstrated to undergo a continuous loss of long-range order at its ferroelastic transition, which is the phenomenon known as lattice melting. Fire show that our data are consistent with a special form of lattice melting where the long-range order appears to be destroyed in a two-dimensional sense, but is preserved in the third dimension.

引用

收藏

页码：7073 / 7084

页数：12

相关论文

共 12 条

[1] OBSERVATION OF ALGEBRAIC DECAY OF POSITIONAL ORDER IN A SMECTIC LIQUID-CRYSTAL [J].

ALSNIELSEN, J ;

LITSTER, JD ;

BIRGENEAU, RJ ;

KAPLAN, M ;

SAFINYA, CR ;

LINDEGAARDANDERSEN, A ;

MATHIESEN, S .

PHYSICAL REVIEW B, 1980, 22 (01) :312-320

[2] ACOUSTIC PHONON INSTABILITIES AND STRUCTURAL PHASE-TRANSITIONS [J].

COWLEY, RA .

PHYSICAL REVIEW B, 1976, 13 (11) :4877-4885

[3] ON THE APPLICATION OF MEAN-FIELD AND LANDAU THEORY TO DISPLACIVE PHASE-TRANSITIONS [J].

DOVE, MT ;

GIDDY, AP ;

HEINE, V .

FERROELECTRICS, 1992, 136 (1-4) :33-49

[4] CRITICAL STATICS OF ELASTIC PHASE-TRANSITIONS [J].

FOLK, R ;

IRO, H ;

SCHWABL, F .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1976, 25 (01) :69-81

[5] ELASTIC PHASE-TRANSITIONS OF 2ND ORDER [J].

FOLK, R ;

IRO, H ;

SCHWABL, F .

PHYSICS LETTERS A, 1976, 57 (02) :112-114

[6] OBSERVATION OF LATTICE MELTING IN A SINGLE-CRYSTAL - THE FERROELASTIC PHASE-TRANSITION IN NA2CO3 [J].

HARRIS, MJ ;

DOVE, MT ;

GODFREY, KW .

PHYSICAL REVIEW B, 1995, 51 (10) :6758-6760

[7] THE INCOMMENSURATE PHASE OF SODIUM-CARBONATE - AN INFRARED-ABSORPTION STUDY [J].

HARRIS, MJ ;

SALJE, EKH .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (18) :4399-4408

[8] LATTICE MELTING AT STRUCTURAL PHASE-TRANSITIONS [J].

HARRIS, MJ ;

DOVE, MT .

MODERN PHYSICS LETTERS B, 1995, 9 (02) :67-85

[9] OBSERVATION OF LATTICE MELTING AT THE FERROELASTIC PHASE-TRANSITION IN NA2CO3 [J].

HARRIS, MJ ;

COWLEY, RA ;

SWAINSON, IP ;

DOVE, MT .

PHYSICAL REVIEW LETTERS, 1993, 71 (18) :2939-2942

[10] ORDERING, METASTABILITY AND PHASE-TRANSITIONS IN 2 DIMENSIONAL SYSTEMS [J].

Kosterlitz, JM ;

Thouless, DJ .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1973, 6 (07) :1181-1203