Signature of crystalline order in ultra-small metal-oxide clusters

被引:17
作者
Reddy, BV [1 ]
Jena, P [1 ]
机构
[1] Virginia Commonwealth Univ, Dept Phys, Richmond, VA 23284 USA
关键词
D O I
10.1016/S0009-2614(98)00328-5
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
First principles calculations of the equilibrium geometries, binding energies, electronic structure and ionization potentials of SbxOy clusters reveal that clusters as small as Sb5O7 bear the fingerprint of their crystal structure. Electronic structure of even smaller clusters mimics the bulk behavior. A partial ionic bonding between metal and oxygen atoms leads to a new family of magic numbers for (x, y) = (2, 3), (3, 4), (4, 5) and (5, 7). Simple rules are provided for constructing geometries of larger magic clusters. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:253 / 260
页数:8
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