STRAIN DRIVEN FCC-BCT PHASE-TRANSITION OF PSEUDOMORPHIC CU FILMS ON PD(100)

被引：67

作者：

HAHN, E

KAMPSHOFF, E

WALCHLI, N

KERN, K

机构：

[1] Institut de Physique Expérimentale, Ecole Polytechnique Fédérale de Lausanne

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.74.1803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pseudomorphic growth of Cu on Pd(100) has been studied by tunneling microscopy. Cu films are found to grow layer by layer with a sharp structural transition from a pseudomorphic face-centered-cubic phase (fcc) to a pseudomorphic body-centered-tetragonal (bct, a=2.75, c=3.10) phase with increasing film thickness. The phase transition is driven by the total strain energy of the Cu film, which scales with the temperature dependent Cu-Pd misfit and the film thickness. © 1995 The American Physical Society.

引用

页码：1803 / 1806

页数：4

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