Fe termination for α-Fe2O3(0001) as grown by oxygen-plasma-assisted molecular beam epitaxy

被引：91

作者：

Chambers, SA ^{[1
]}

Yi, SI ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA

来源：

SURFACE SCIENCE | 1999年 / 439卷 / 1-3期

关键词：

iron oxide; low index single crystal surfaces; photoelectron diffraction; scanning tunneling microscopy; surface structure; morphology; roughness; and topography;

D O I：

10.1016/S0039-6028(99)00766-9

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：

We have investigated the termination of epitaxial alpha-Fe2O3(0001) prepared by oxygen-plasma-assisted molecular beam epitaxy as grown. The sample was stabilized down to near room temperature in the oxygen plasma after growth. The resulting surface is Fe-terminated, despite the highly oxidizing conditions used to end the growth. This result shows that the Fe termination is the most stable surface structure to form, consistent with the predictions of the surface autocompensation model. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：L785 / L791

页数：7

共 14 条

[11] Surface structure of MBE-grown α-Fe2O3(0001) by intermediate-energy X-ray photoelectron diffraction
Thevuthasan, S
Kim, YJ
Yi, SI
Chambers, SA
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Brown, GE
[J]. SURFACE SCIENCE, 1999, 425 (2-3) : 276 - 286
[12] The hematite (α-Fe2O3) (0001) surface:: Evidence for domains of distinct chemistry
Wang, XG
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Scheffler, M
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (05) : 1038 - 1041
[13] Ewald methods for polarizable surfaces with application to hydroxylation and hydrogen bonding on the (012) and (001)surfaces of alpha-Fe2O3
Wasserman, E
Rustad, JR
Felmy, AR
Hay, BP
Halley, JW
[J]. SURFACE SCIENCE, 1997, 385 (2-3) : 217 - 239
[14] Effect of growth rate on the nucleation of α-Fe2O3 on α-Al2O3(0001) by oxygen-plasma-assisted molecular beam epitaxy
Yi, SI
Liang, Y
Chambers, SA
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (04): : 1737 - 1742

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