ORIENTATIONAL PHASE-SEPARATION FOR VICINAL SURFACES CLOSE TO THE NONMELTING PB(111) FACE

被引：40

作者：

BILALBEGOVIC, G ^{[1
]}

ERCOLESSI, F ^{[1
]}

TOSATTI, E ^{[1
]}

机构：

[1] INT CTR THEORET PHYS,I-34014 TRIESTE,ITALY

来源：

EUROPHYSICS LETTERS | 1992年 / 17卷 / 04期

关键词：

CRYSTAL MORPHOLOGY AND ORIENTATION; SURFACE PHASE TRANSITIONS AND CRITICAL PHENOMENA;

D O I：

10.1209/0295-5075/17/4/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the microscopic aspects of the phase separation connected with the sharp edges recently observed on the equilibrium crystal shape of lead, about twenty degrees below the bulk melting temperature. We present molecular-dynamics simulations based on a many-body interatomic potential. The high-temperature orientational phase separation can be viewed as a faceting induced by anisotropy of surface melting and should occur quite universally for vicinals of nonmelting crystal surfaces.

引用

页码：333 / 337

页数：5

共 47 条

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