ELASTIC NEUTRON-SCATTERING EVIDENCE FOR A CHARGE-TRANSFER CHANGE IN TTF-TCNQ (TETRATHIOFULVALENE-TETRACYANOQUINODIMETHANE) AT HIGH-PRESSURE

被引：42

作者：

MEGTERT, S

COMES, R

VETTIER, C

PYNN, R

GARITO, AF

机构：

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

[2] UNIV PENN,PHILADELPHIA,PA 19104

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 31卷 / 12期

关键词：

D O I：

10.1016/0038-1098(79)90012-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Neutron scattering measurements of a satellite reflection in the {h k o} zone of the modulated phases of TTF-TCNQ reveal a shift of the 2kF wave vector from 0.295 b{A figure is presented} at ambient pressure, to 0.308 b{A figure is presented} at 5 Kbar. This change corresponds to an increase of charge-transfer from 0.59 to 0.616 electrons. A new pressure-induced phase transition has also been observed. At the transition the component of the satellite wave vector in the a{A figure is presented} direction changes from 0.25 a{A figure is presented} below 3 Kbar to 0.5 a{A figure is presented} above 4.6 Kbar. © 1979.

引用

页码：977 / 980

页数：4

共 15 条

[1]

ANDRIEUX A, UNPUBLISHED

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