Energetics of nucleation for the icosahedral Al-Mn phase in HTSD-deposited thin films

被引：1

作者：

Manaila, R

Alexe, G

Barna, PB

Giusca, C

Devenyi, A

机构：

[1] Natl Inst Phys Mat, Bucharest 76900, Romania

[2] Inst Tech Phys & Mat Sci, H-1525 Budapest, Hungary

[3] Romanian Acad, Ctr Adv Studies Phys, Bucharest, Romania

来源：

STRUCTURAL CHEMISTRY | 2002年 / 13卷 / 3-4期

基金：

美国国家科学基金会; 匈牙利科学研究基金会;

关键词：

quasicrystals; thin films; icosahedral Al-Mn; Mackay clusters; bonding energy in clusters; nucleation;

D O I：

10.1023/A:1015828410524

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The cohesive energy of the Al-Mn Mackay icosahedron (MI) was estimated for different variants of chemical order, using pair-bonding energies. This problem is related to the nucleation of i-AlMn phase in sequentially deposited thin films. The chemically ordered MI comes out as the thermodynamically most stable configuration. The role of kinetic factors during deposition is also discussed.

引用

页码：365 / 371

页数：7

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