TRANSPORT-PROPERTIES OF AL65CU15CO20 AND AL70NI15CO15 DECAGONAL QUASI-CRYSTALS

被引：76

作者：

MARTIN, S

HEBARD, AF

KORTAN, AR

THIEL, FA

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.67.719

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature-dependent resistivity of the two-dimensional quasicrystals Al65Cu15Co20 and Al70Ni15Co15 is studied along the periodic direction (rho-p) and in the quasiperiodic plane (rho-q) from 4.2 to 600 K. A transport anisotropy of <rho-q/rho-p> congruent-to 8 is measured. In both materials rho-p is metallic and can be described by a semiclassical electron-phonon scattering model. For rho-q a nonmetallic behavior is found, suggesting a phonon-assisted tunneling mechanism.

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页码：719 / 722

页数：4

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