NMR-STUDY OF THE ELECTRONIC-PROPERTIES AND STABILITY OF QUASI-CRYSTALS

被引：41

作者：

HIPPERT, F

KANDEL, L

CALVAYRAC, Y

DUBOST, B

机构：

[1] CTR ETUD CHIM MET,CNRS,F-94407 VITRY,FRANCE

[2] CTR RECH VOREPPE,F-38340 VOREPPE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.69.2086

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied by NMR the electronic properties of the stable quasicrystalline phases Al57Cu10.8Li32.2 and Al62Cu25.5Fe12.5 and of two crystalline approximants, the bcc R phase Al56Cu12Li32 and the rhombohedral Al62.8Cu26Fe11.2 phase. Low values of the density of states at the Fermi level are observed in the crystalline as well as in the quasicrystalline phases. The existence of a pseudogap at the Fermi level is therefore not a consequence of the quasiperiodicity. These results renew the debate on the stability of quasicrystals.

引用

页码：2086 / 2089

页数：4

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