SEMIMETALLIC BEHAVIOR OF I-ALCUFE QUASI-CRYSTALS

被引：18

作者：

HABERKERN, R

FRITSCH, G

HARTING, M

机构：

[1] Universität der Bundeswehr München, BauV/I1 Physik, Neubiberg

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1993年 / 57卷 / 05期

关键词：

D O I：

10.1007/BF00331782

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on new measurements of the electrical conductivity, Hall effect and thermoelectric power in the temperature range from 2 K to 440 K for AlCuFe quasicrystals of different compositions and annealing treatments. Particularly, the Hall coefficient and the thermopower show a strong dependence on composition and also on heat treatment. The increase of sample perfection on annealing between 810-degrees-C and 825-degrees-C is demonstrated by analysing X-ray measurements. All measured quantities can be explained in terms of a semimetal containing both electrons and holes at low temperatures, at least for samples near the ideal quasicrystalline structure and composition.

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页码：431 / 435

页数：5

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