Superstructure observation on a MgO(100) surface

被引：16

作者：

Ota, H

Sakai, K

Aoki, R

Ikemiya, N

Hara, S

机构：

[1] OSAKA UNIV, DEPT ELECT ENGN, SUITA, OSAKA 565, JAPAN

[2] OSAKA UNIV, DEPT MAT SCI & PROC, SUITA, OSAKA 565, JAPAN

来源：

SURFACE SCIENCE | 1996年 / 357卷 / 1-3期

关键词：

Auger electron diffraction; Auger electron spectroscopy; calcium; MgO; reflection high-energy electron diffraction (RHEED); single crystal surfaces; surface relaxation and reconstruction; surface roughening; surface segregation; surface stress; surface structure; morphology; roughness; and topography;

D O I：

10.1016/0039-6028(96)00078-7

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：

The morphology and atomic arrangement of annealed MgO(100) surfaces have been investigated. The AFM image demonstrates the existence of two different regions, the one is an atomically flat region and the other a cusp-existing one. AES spectra indicate that this cusp comes from the Ca compound segregated to the (100) surface. RHEED observation clarifies the existence of a high-order superstructure on the annealed surface.

引用

收藏

页码：150 / 154

页数：5

相关论文

共 9 条

[1] CA SEGREGATION AND STEP MODIFICATIONS ON CLEAVED AND ANNEALED MGO(100) SURFACES [J].

GAJDARDZISKAJOSIFOVSKA, M ;

CROZIER, PA ;

MCCARTNEY, MR ;

COWLEY, JM .

SURFACE SCIENCE, 1993, 284 (1-2) :186-199

[2] CALCIUM SEGREGATION TO A MAGNESIUM-OXIDE (100) SURFACE [J].

MCCUNE, RC ;

WYNBLATT, P .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1983, 66 (02) :111-117

[3] GROWTH OF YBA2CU3O7 THIN-FILMS ON MGO - THE EFFECT OF SUBSTRATE PREPARATION [J].

MOECKLY, BH ;

RUSSEK, SE ;

LATHROP, DK ;

BUHRMAN, RA ;

LI, J ;

MAYER, JW .

APPLIED PHYSICS LETTERS, 1990, 57 (16) :1687-1689

[4] REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION STUDY ON THE SRTIO3 SURFACE-STRUCTURE [J].

NAITO, M ;

SATO, H .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 229 (1-2) :1-11

[5] SURFACE PREPARATION FOR THE HETEROEPITACTIC GROWTH OF CERAMIC THIN-FILMS [J].

NORTON, MG ;

SUMMERFELT, SR ;

CARTER, CB .

APPLIED PHYSICS LETTERS, 1990, 56 (22) :2246-2248

[6]

SEKINE P, 1984, VACUUM, V34, P361

[7] REACTIVE COEVAPORATION OF DYBACUO SUPERCONDUCTING FILMS - THE SEGREGATION OF BULK IMPURITIES ON ANNEALED MGO(100) SUBSTRATES [J].

SMILGYS, RV ;

ROBEY, SW ;

CHIANG, CK ;

HSIEH, TJ .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1993, 11 (04) :1361-1366

[8] SEGREGATION OF CA IONS AT THE MGO(001) SURFACE STUDIED BY NEUTRAL BEAM INCIDENCE ION-SCATTERING SPECTROSCOPY [J].

SOUDA, R ;

AIZAWA, T ;

ISHIZAWA, Y ;

OSHIMA, C .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (04) :3218-3223

[9] SCANNING FORCE MICROSCOPY STUDY OF SINGLE-CRYSTAL SUBSTRATES USED FOR THIN-FILM GROWTH OF HIGH-TEMPERATURE SUPERCONDUCTORS [J].

SUM, R ;

LANG, HP ;

GUNTHERODT, HJ .

PHYSICA C, 1995, 242 (1-2) :174-182