Atomic force microscopy and scanning electron microscopy study of MgO(110) surface faceting

被引：23

作者：

Giese, DR

Lamelas, FJ

Owen, HA

Plass, R

Gajdardziska-Josifovska, H

机构：

[1] Univ Wisconsin, Dept Phys, Milwaukee, WI 53201 USA

[2] Univ Wisconsin, Surface Studies Lab, Milwaukee, WI 53201 USA

[3] Marquette Univ, Dept Phys, Milwaukee, WI 53233 USA

[4] Univ Wisconsin, Dept Biol Sci, Milwaukee, WI 53211 USA

来源：

SURFACE SCIENCE | 2000年 / 457卷 / 03期

基金：

美国国家科学基金会;

关键词：

atomic force microscopy; etching; faceting; low index single crystal surfaces; magnesium oxides; scanning electron microscopy (SEM); surface structure; morphology; roughness; and topography; surface thermodynamics (including phase transitions); vicinal single crystal surfaces;

D O I：

10.1016/S0039-6028(00)00382-4

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：

Phosphoric- and nitric-acid etching of the MgO(110) surface generates vicinal faceting in both the < 001 > and < 110 > directions. Vacuum annealing (to 1000 degrees C) does not introduce thermal faceting, and does not alter the chemical-etch morphology. Three types of acid-induced faceting (early-stage pits, later-stage grooves, and inverted trapezoidal pyramids) are seen as a function of etching time. Facet-angle analysis by atomic force microscopy (AFM) and scanning electron microscopy (SEM) shows the etch morphology to be vicinal, with angles in the range of 9 degrees to 23 degrees, not the low-energy {100} planes expected from minimization of surface energy. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：326 / 336

页数：11

共 16 条

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