ELECTRONIC DISTRIBUTIONS OF STATES IN CRYSTALLINE AND QUASI-CRYSTALLINE AL-CU-FE AND AL-CU-FE-CR ALLOYS

被引：79
|
作者：
BELIN, E
DANKHAZI, Z
SADOC, A
CALVAYRAC, Y
KLEIN, T
DUBOIS, JM
机构：
[1] EOTVOS LORAND UNIV, SURFACE & INTERFACE PHYS LAB, H-1088 BUDAPEST, HUNGARY
[2] UNIV PARIS 11, CEA,MENJS,UTILISAT RAYONNEMENT ELECTROMAGNET LAB, CNRS, F-91405 ORSAY, FRANCE
[3] CTR ETUD CHIM MET, CNRS, F-94407 VITRY, FRANCE
[4] LAB ETUD PROPRIETES ELECTRON SOLIDES, CNRS, F-38042 GRENOBLE, FRANCE
[5] LAB SCI & GENIE MAT MET, CNRS, UA 159, F-54042 NANCY, FRANCE
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 18期
关键词：
D O I：
10.1088/0953-8984/4/18/012
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Valence and conduction state distributions in a series of Al-Cu-Fe and Al-Cu-Fe-Cr alloys of different structural states and nominal compositions have been investigated by means of soft-x-ray emission and photoabsorption spectroscopies. A complete description of the valence band is obtained. The DOS at E(F) is observed to be very low which is consistent with the high resistivity values found for the icosahedral quasicrystalline phase. The existence of a wide pseudo-gap at E(F) is evidenced, which is higher in the quasicrystal than in the related crystalline counterparts.
引用
收藏
页码：4459 / 4472
页数：14
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