Nonmetal-metal transition in Ni clusters

被引：18

作者：

AguileraGranja, F ^{[1
]}

Bouarab, S ^{[1
]}

Vega, A ^{[1
]}

Alonso, JA ^{[1
]}

MontejanoCarrizales, JM ^{[1
]}

机构：

[1] UNIV AUTONOMA SAN LUIS POTOSI,INST FIS,SAN LUIS POTOSI 78000,SLP,MEXICO

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 10期

关键词：

metals; nanostructures;

D O I：

10.1016/S0038-1098(97)00380-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the nonmetal-metal transition in Ni clusters. A self-consistent tight-binding method for the s, p and d valence electrons has been used to calculate the density of states and the prescription employed to identify the nonmetal-metal transition was Kubo's criterion that the density of states at the Fermi level should exceed 1/k(B)T. The calculated critical cluster size decreases fast with increasing temperature T and at the liquid nitrogen temperature clusters of about 50 atoms already present metallic behavior. (C) 1997 Elsevier Science Ltd.

引用

页码：635 / 639

页数：5

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