TY - JOUR
T1 - Formation of planar magic Ag nanostructures
AU - Chiu, Ya-Ping
AU - Huang, Bo Chao
PY - 2009/6/1
Y1 - 2009/6/1
N2 - Nanometer-sized silver-based clusters have been identified in experiments, as a potential material for planar magic clusters. The density functional optimization of geometrical structures and, correspondingly, binding energy enable the formation of these magic Ag nanoclusters as well as their relative stability to be examined. Calculations show that the evolution of the sequence of planar magic Ag clusters is strongly related to their electronic structures. Only those clusters that exhibit a high degeneracy of electronic states, a large energy gap near the Fermi level, and a symmetric charge density distribution are favorable structures. The substrate also plays an important role in the formation of geometrically optimized structures of magic Ag clusters. With further analysis of their intrinsic electronic properties and extrinsic extra energy gain with substrate consideration, the mechanism of formation and the magic number sequence for planar Ag nanoclusters can be obtained.
AB - Nanometer-sized silver-based clusters have been identified in experiments, as a potential material for planar magic clusters. The density functional optimization of geometrical structures and, correspondingly, binding energy enable the formation of these magic Ag nanoclusters as well as their relative stability to be examined. Calculations show that the evolution of the sequence of planar magic Ag clusters is strongly related to their electronic structures. Only those clusters that exhibit a high degeneracy of electronic states, a large energy gap near the Fermi level, and a symmetric charge density distribution are favorable structures. The substrate also plays an important role in the formation of geometrically optimized structures of magic Ag clusters. With further analysis of their intrinsic electronic properties and extrinsic extra energy gain with substrate consideration, the mechanism of formation and the magic number sequence for planar Ag nanoclusters can be obtained.
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U2 - 10.1143/JJAP.48.06FF11
DO - 10.1143/JJAP.48.06FF11
M3 - Article
AN - SCOPUS:70249140591
VL - 48
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 6 PART 2
ER -