STABLE AL-CU-RU ICOSAHEDRAL CRYSTALS - A NEW CLASS OF ELECTRONIC ALLOYS

被引：222
作者：
BIGGS, BD
POON, SJ
MUNIRATHNAM, NR
机构：
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.65.2700
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Stable icosahedral Al85-xCuxRu15 (15<x<20) alloys of good metals are characterized by conductivities below the minimum metallic value, and resistivity ratios (0.5 K)/(295 K) as large as 4. Strong temperature dependences which lead to changes of sign in the Hall coefficient and thermopower are also observed. Electronic densities of states are found to vary rapidly with alloy composition. The unusual electronic properties of this new class of barely metallic systems are discussed in light of current theories on electronic structure and transport of icosahedral crystals. © 1990 The American Physical Society.
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页码：2700 / 2703
页数：4
相关论文
共 30 条
[1]  
Altshuler B. L., 1985, Electron-electron interactions in disordered systems, P1
[2]  
FRIEDEL J, 1988, HELV PHYS ACTA, V61, P538
[3]   ELECTRONIC-STRUCTURE IN THE AL-MN ALLOY CRYSTALLINE ANALOG OF QUASICRYSTALS [J].
FUJIWARA, T .
PHYSICAL REVIEW B, 1989, 40 (02) :942-946
[4]  
FUJIWARA T, IN PRESS P TANIGUCHI
[5]  
FUKUYAMA H, 1981, J PHYS SOC JPN, V50, P211
[6]   SPECIFIC-HEAT OF AN ICOSAHEDRAL SUPERCONDUCTOR, MG3ZN3AL2 [J].
GRAEBNER, JE ;
CHEN, HS .
PHYSICAL REVIEW LETTERS, 1987, 58 (19) :1945-1948
[7]   AL-CU-RU - AN ICOSAHEDRAL ALLOY WITHOUT PHASON DISORDER [J].
GURYAN, CA ;
GOLDMAN, AI ;
STEPHENS, PW ;
HIRAGA, K ;
TSAI, AP ;
INOUE, A ;
MASUMOTO, T .
PHYSICAL REVIEW LETTERS, 1989, 62 (20) :2409-2412
[8]  
Howson M. A., 1988, Physics Reports, V170, P265, DOI 10.1016/0370-1573(88)90145-7
[9]   INCIPIENT LOCALIZATION AND ELECTRON ELECTRON CORRELATION-EFFECTS IN METALLIC-GLASS ALLOYS [J].
HOWSON, MA .
JOURNAL OF PHYSICS F-METAL PHYSICS, 1984, 14 (03) :L25-L31
[10]   ELECTRONIC-PROPERTIES OF THE SINGLE-GRAINED ICOSAHEDRAL PHASE OF AL LI CU [J].
KIMURA, K ;
IWAHASHI, H ;
HASHIMOTO, T ;
TAKEUCHI, S ;
MIZUTANI, U ;
OHASHI, S ;
ITOH, G .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (07) :2472-2481
123