First-principles study of transport properties of Al wires: Comparison between crystalline and jellium electrodes

被引:15
作者
Fujimoto, Y [1 ]
Asari, Y
Kondo, H
Nara, J
Ohno, T
机构
[1] Univ Tokyo, Inst Ind Sci, Minato Ku, Tokyo 1538505, Japan
[2] Natl Inst Mat Sci, Computat Mat Sci Ctr, Tsukuba, Ibaraki 3050047, Japan
关键词
D O I
10.1103/PhysRevB.72.113407
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate effects of electrode structures on transport properties of Al monatomic wires sandwiched between Al electrodes by using first-principles calculations. To exhibit the effects, we compare the conductance obtained by employing the jellium electrode with that by the crystalline one. Although the conductance spectrum of the jellium-electrode model is considerably different from that of the crystalline-electrode one, setting Al(001) atomic layers on the jellium electrode surface improves the conductance values of the jellium-electrode models at the Fermi energy.
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页数:4
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