EXPERIMENTAL-OBSERVATION OF BLOCKED MELTING ON THE AU(111) SURFACE

被引：19

作者：

HOSS, A ^{[1
]}

ROMAHN, U ^{[1
]}

NOLD, M ^{[1
]}

VONBLANCKENHAGEN, P ^{[1
]}

MEYER, O ^{[1
]}

机构：

[1] KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH,INST MATERIALFORSCH,W-7500 KARLSRUHE 1,GERMANY

来源：

EUROPHYSICS LETTERS | 1992年 / 20卷 / 02期

关键词：

D O I：

10.1209/0295-5075/20/2/006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the f.c.c. Au(111) surface was investigated in the temperature range between 300 and 1350 K by the ion channelling and blocking method MEIS. At about 950 K the surface deconstructs. We observed at a critical temperature of (1070 +/- 20) K a sudden disordering of the topmost surface layers. The number of visible (111) layers changes dramatically at this temperature. Such a blocked melting behaviour is predicted by the premelting theory and by molecular-dynamics calculations for the Au(111) surface.

引用

页码：125 / 130

页数：6

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