Morphology of MgO(111) surfaces: artifacts associated with the faceting of polar oxide surfaces into neutral surfaces

被引：53

作者：

Plass, R ^{[1
]}

Feller, J ^{[1
]}

Gajdardziska-Josifovska, M ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA

来源：

SURFACE SCIENCE | 1998年 / 414卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

atomic force microscopy (AFM); etching; faceting; insulating surfaces; magnesium oxides; single crystal surfaces; surface defects; surface relaxation and reconstruction; surface structure; morphology; roughness; and topography;

D O I：

10.1016/S0039-6028(98)00438-5

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：

It is shown by optical, atomic force, scanning and transmission electron microscopies that the MgO(111) surface does not Facet into neutral(100) type planes upon annealing. The triangular pyramidal pits that Henrich [V.E. Henrich Surf. Sci., 57 (1976) 385] associates with the polar (111) surface faceting into (100) planes turn out to be artifacts of the acid etch used in the sample preparation process. It is shown that the pyramidal pits have facets sloped at 10.8+/-2.8 degrees with respect to the (111) surface, corresponding to sets of vicinal surfaces. The pit edges are confirmed by transmission electron microscopy to be along the three equivalent [110]-type directions. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：26 / 37

页数：12

共 17 条

[1] POLAR SURFACES OF OXIDES - REACTIVITY AND RECONSTRUCTION
CAPPUS, D
HASSEL, M
NEUHAUS, E
HEBER, M
ROHR, F
FREUND, HJ
[J]. SURFACE SCIENCE, 1995, 337 (03) : 268 - 277
[2] CROZIER PA, 1993, ULTRAMICROSCOPY, V48, P216
[3] CA SEGREGATION AND STEP MODIFICATIONS ON CLEAVED AND ANNEALED MGO(100) SURFACES
GAJDARDZISKAJOSIFOVSKA, M
CROZIER, PA
MCCARTNEY, MR
COWLEY, JM
[J]. SURFACE SCIENCE, 1993, 284 (1-2) : 186 - 199
[4] (√3 × √3)R30° reconstruction on annealed (111) surfaces of MgO
Gajdardziska-Josifovska, M.
Crozier, P.A.
Cowley, J.M.
[J]. Surface Science, 1991, 248 (1-2)
[5] ELECTRONIC-STRUCTURE AND RELATIVE STABILITY OF THE MGO(001) AND MGO(111) SURFACES
GIBSON, A
HAYDOCK, R
LAFEMINA, JP
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1992, 10 (04): : 2361 - 2366
[6] THERMAL FACETING OF (110) AND (111) SURFACES OF MGO
HENRICH, VE
[J]. SURFACE SCIENCE, 1976, 57 (01) : 385 - 392
[7] Metal-oxide surfaces
Henrich, VE
[J]. PROGRESS IN SURFACE SCIENCE, 1995, 50 (1-4) : 77 - 90
[8] CHARACTERIZATION OF EPITAXIAL (111) MGO THIN-FILMS
HENRY, CR
POPPA, H
[J]. THIN SOLID FILMS, 1990, 189 (02) : 303 - 312
[9] CHARACTERIZATION OF MAGNESIUM-OXIDE SURFACES PREPARED BY ELECTRON-BEAM CLEAVAGE
METOIS, JJ
HEINEMANN, K
POPPA, H
[J]. THIN SOLID FILMS, 1977, 41 (02) : 197 - 207
[10] ADSORPTION OF NA ATOMS AND OXYGEN-CONTAINING MOLECULES ON MGO(100) AND (111) SURFACES
ONISHI, H
EGAWA, C
ARUGA, T
IWASAWA, Y
[J]. SURFACE SCIENCE, 1987, 191 (03) : 479 - 491

← 1 2 →