OBSERVATION OF LATTICE MELTING AT THE FERROELASTIC PHASE-TRANSITION IN NA2CO3

被引：16

作者：

HARRIS, MJ

COWLEY, RA

SWAINSON, IP

DOVE, MT

机构：

[1] AECL RES,CHALK RIVER LABS,NEUTRON & CONDENSED MATTER SCI BRANCH,CHALK RIVER K0J 1J0,ON,CANADA

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

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.71.2939

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A neutron powder diffraction study of the m = 2 ferroelastic phase transition at 755 K in Na2CO3 is presented, showing the first occurrence of ideal lattice melting. A detailed analysis of the profiles of the diffraction peaks shows a striking broadening which develops close to T(c), consistent with recent theoretical predictions for this type of transition.

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页码：2939 / 2942

页数：4

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