ATOMIC-STRUCTURE OF THE ALPHA-AL2O3(0001) (ROOT-31 X ROOT-31)R +/- 9-DEGREES RECONSTRUCTION

被引：107

作者：

RENAUD, G

VILLETTE, B

VILFAN, I

BOURRET, A

机构：

[1] JOZEF STEFAN INST,LJUBLJANA 61111,SLOVENIA

[2] LAB UTILISAT RAYONNEMENT ELECTROMAGNET,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.73.1825

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The projected atomic structure of the alpha-Al2O3(0001)(root 31 x root 31)R +/- 9 degrees reconstruction has been analyzed by means of the grazing incidence x-ray diffraction technique, which is not limited by the surface insulating character. It consists of two Al planes whose structure is close to that of metallic Al(111). This overlayer is rotationally reconstructed, is commensurate with the substrate, and displays strong nonlinear static distortion waves. This layer, oxygen depleted, explains why the surface properties are dramatically changed.

引用

页码：1825 / 1828

页数：4

共 21 条

[1] SEGREGATION OF MG TO THE (0001) SURFACE OF DOPED SAPPHIRE [J].

BAIK, S ;

FOWLER, DE ;

BLAKELY, JM ;

RAJ, R .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1985, 68 (05) :281-286

[2]

FRENCH TM, 1970, J PHYS CHEM-US, V74, P12

[3] EQUILIBRIUM-CONFIGURATIONS OF COMMENSURATE ADSORBED MONOLAYERS - ARGON ON GRAPHITE [J].

FUSELIER, CR ;

RAICH, JC ;

GILLIS, NS .

SURFACE SCIENCE, 1980, 92 (2-3) :667-680

[4]

GAUTIER M, 1991, SURF SCI, V249, pL327, DOI 10.1016/0039-6028(91)90822-A

[5] MODIFICATIONS OF ALPHA-AL2O3(0001) SURFACES INDUCED BY THERMAL TREATMENTS OR ION-BOMBARDMENT [J].

GAUTIER, M ;

DURAUD, JP ;

VAN, LP ;

GUITTET, MJ .

SURFACE SCIENCE, 1991, 250 (1-3) :71-80

[6] CHARACTERIZATION OF SAPPHIRE SURFACES BY ELECTRON ENERGY-LOSS SPECTROSCOPY [J].

GILLET, E ;

EALET, B .

SURFACE SCIENCE, 1992, 273 (03) :427-436

[7] ELECTRONIC-STRUCTURE AND ENERGETICS OF SAPPHIRE (0001) AND (1102) SURFACES [J].

GUO, J ;

ELLIS, DE ;

LAM, DJ .

PHYSICAL REVIEW B, 1992, 45 (23) :13647-13656

[8] LOW-TEMPERATURE HOMO-EPITAXY AND HETEROEPITAXY OF SAPPHIRE FILMS BY REACTIVE IONIZED CLUSTER BEAM DEPOSITION [J].

HIRAYAMA, H ;

TAKAOKA, GH ;

USUI, H ;

YAMADA, I .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1991, 59 :207-210

[9] A REFLECTION ELECTRON-MICROSCOPIC (REM) STUDY OF ALPHA-AL2O3(0001) SURFACES [J].

KIM, Y ;

HSU, T .

SURFACE SCIENCE, 1991, 258 (1-3) :131-146

[10] Structure of the (001) surface of α-Al2O3 from first principles calculations [J].

Manassidis, I. ;

De Vita, A. ;

Gillan, M.J. .

Surface Science, 1993, 285 (03)

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