Magnetic ordering of dangling bond networks on hydrogen-deposited Si(111) surfaces

被引：34

作者：

Okada, S

Shiraishi, K

Oshiyama, A

机构：

[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan

[2] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058571, Japan

[3] Natl Inst Adv Ind Sci & Technol, Res Consortium Synthet Nanofunct Mat Project, Tsukuba, Ibaraki 3058568, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.90.026803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on total-energy electronic-structure calculations within the density-functional theory, we find that a high spin state is realized for an ultimate dangling bond unit on an otherwise hydrogen-covered Si(111) surface. We further propose a systematic method of constructing nanometer-scale dangling bond networks that exhibit the ferrimagnetic spin ordering. The interplay between the electron-electron interaction and the surface reconstruction is elucidated.

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页数：4

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