Electronic properties of ultra-thin aluminum nanowires

被引:44
作者
Di Tolla, F [1 ]
Dal Corso, A
Torres, JA
Tosatti, E
机构
[1] SISSA, Int Sch Adv Studies, I-34014 Trieste, Italy
[2] INFM, Unita Trieste, Trieste, Italy
[3] ICTP, Abdus Salam Int Ctr Theoret Phys, Trieste, Italy
关键词
ab initio quantum chemical methods and calculations; aluminum;
D O I
10.1016/S0039-6028(00)00282-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have carried out first-principles electronic structure and total energy calculations for a series of ultrathin aluminum nanowires, based on structures obtained by relaxing the model wires of Gulseren et al. [Phys. Rev. Lett. 80 (1998) 37751. The number of conducting channels is followed as the wires radius is increased. The results suggest that pentagonal wires should be detectable, as the only ones who can yield a channel number between 8 and 10. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:947 / 951
页数:5
相关论文
共 35 条
[1]   ATOMIC-SCALE CONNECTIVE NECK FORMATION AND CHARACTERIZATION [J].
AGRAIT, N ;
RODRIGO, JG ;
SIRVENT, C ;
VIEIRA, S .
PHYSICAL REVIEW B, 1993, 48 (11) :8499-8501
[2]   PLASTIC-DEFORMATION OF NANOMETER-SCALE GOLD CONNECTIVE NECKS [J].
AGRAIT, N ;
RUBIO, G ;
VIEIRA, S .
PHYSICAL REVIEW LETTERS, 1995, 74 (20) :3995-3998
[3]   CONDUCTANCE STEPS AND QUANTIZATION IN ATOMIC-SIZE CONTACTS [J].
AGRAIT, N ;
RODRIGO, JG ;
VIEIRA, S .
PHYSICAL REVIEW B, 1993, 47 (18) :12345-12348
[4]  
BALICAS L, COMMUNICATION
[5]   Cluster-derived structures and conductance fluctuations in nanowires [J].
Barnett, RN ;
Landman, U .
NATURE, 1997, 387 (6635) :788-791
[6]   DENSITY-FUNCTIONAL EXCHANGE-ENERGY APPROXIMATION WITH CORRECT ASYMPTOTIC-BEHAVIOR [J].
BECKE, AD .
PHYSICAL REVIEW A, 1988, 38 (06) :3098-3100
[7]   Scattering and conductance quantization in three-dimensional metal nanocontacts [J].
Brandbyge, M ;
Jacobsen, KW ;
Norskov, JK .
PHYSICAL REVIEW B, 1997, 55 (04) :2637-2650
[8]   Conductance eigenchannels in nanocontacts [J].
Brandbyge, M ;
Sorensen, MR ;
Jacobsen, KW .
PHYSICAL REVIEW B, 1997, 56 (23) :14956-14959
[9]   SIMULATION OF GOLD IN THE GLUE MODEL [J].
ERCOLESSI, F ;
PARRINELLO, M ;
TOSATTI, E .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1988, 58 (01) :213-226
[10]   MELTING OF SMALL GOLD PARTICLES - MECHANISM AND SIZE EFFECTS [J].
ERCOLESSI, F ;
ANDREONI, W ;
TOSATTI, E .
PHYSICAL REVIEW LETTERS, 1991, 66 (07) :911-914