STRUCTURAL AND ELECTRICAL-PROPERTIES OF LAYERED TRANSITION-METAL SELENIDES VXTI1-XSE2 AND TAXTI1-XSE2

被引：35

作者：

LEVY, F

FROIDEVAUX, Y

机构：

[1] Laboratoire De Physique Appliquee, EPF, Lausanne

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 03期

关键词：

D O I：

10.1088/0022-3719/12/3/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structural and electrical properties of single crystals of the systems TaxTi1-xSe2 and VxTi 1-xSe2 have been investigated. Single crystals have been grown by chemical transport reactions over the whole concentration range. Their crystallographic structures can be described on the basis of the 1T polytypic form. The electrical properties of the mixed crystals are interpreted in comparison with the stoichiometric samples. The most interesting effects occur in vanadium-doped TiSe2 samples where the temperature of the resistivity anomaly is lowered by additions (0.001<or=x<0.01). For larger x(0.01<or=x<or=0.05) the anomaly disappears and a semiconducting phase is observed down to low temperatures. For increasing x, the temperature dependence of the resistivity has a metallic character.

引用

页码：473 / 487

页数：15

共 27 条

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