THE (2X2) P2MG TO (1X2) O/RH(110) PHASE-TRANSITION

被引：21

作者：

BELLMAN, AF

CVETKO, D

MORGANTE, A

POLLI, M

TOMMASINI, F

PRINCE, KC

ROSEI, R

机构：

[1] SINCROTRONE TRIESTE SCPA,I-34012 TRIESTE,ITALY

[2] UNIV TRIESTE,I-34000 TRIESTE,ITALY

[3] UNIV TRENT,I-38050 TRENT,ITALY

[4] INST J STEFAN,LJUBLJANA,SLOVENIA

来源：

SURFACE SCIENCE | 1993年 / 281卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(93)90847-D

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Adsorption of half a monolayer of oxygen on the Rh(110) substrate gives a surface with a (2 x 2) p2mg symmetry structure, in which the substrate has a missing row (1 x 2) structure. He-beam scattering measurements show that close to 750 K this surface structure reversibly transforms into a phase of (1 x 2) symmetry. The phase transition has been classified as belonging to the order-disorder type, and falls into the 2D Ising universality class. Above the transition temperature proliferation of antiphase domain boundaries along the [001] direction is observed and discussed.

引用

页码：L321 / L325

页数：5

共 19 条

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