INCOMMENSURATE CHARGE-DENSITY-WAVE STATE IN ALPHA-URANIUM - A HIGH-RESOLUTION X-RAY AND NEUTRON-SCATTERING STUDY

被引：18

作者：

GRUBEL, G

AXE, JD

GIBBS, D

LANDER, GH

MARMEGGI, JC

BRUCKEL, T

机构：

[1] COMMISS EUROPEAN COMMUNITIES,JOINT RES CTR,INST TRANSURANIUM ELEMENTS,W-7500 KARLSRUHE,GERMANY

[2] UNIV J FOURIER,CNRS,CRISTALLOG LAB,F-38042 GRENOBLE,FRANCE

[3] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.43.8803

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The incommensurate charge-density-wave state, which develops in alpha-uranium below 47 K, was studied in high-resolution x-ray and neutron-scattering experiments. Lock-in transitions of the incommensurate modulation wave vector were observed at 38 K (q(x) = 1/2) and 22 K (q(y) = 1/6, q(z) = 2/11) and explained in terms of a Landau theory. The simultaneous lock-in transformation of both the q(y) and q(z) components is accompanied by the formation of a phase-discommensuration lattice along the z axis.

引用

页码：8803 / 8807

页数：5

共 15 条

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AXE JD, 1976, PHYSICS STRUCTURALLY, P507

[2] THEORY OF STRUCTURAL PHASE-TRANSFORMATIONS IN TETRATHIAFULVALENE-TETRACYANOQUINODIMETHANE (TTF-TCNQ) [J].