Atomic and electronic-band structures of anomalous carbon dimers on 3C-SiC(001)-c(2 x 2)

被引：48

作者：

Yeom, HW ^{[1
]}

Shimomura, M

Kitamura, J

Hara, S

Tono, K

Matsuda, I

Mun, BS

Huff, WAR

Kono, S

Ohta, T

Yoshida, S

Okushi, H

Kajimura, K

Fadley, CS

机构：

[1] Univ Tokyo, Res Ctr Spectrochem, Tokyo 113, Japan

[2] Tohoku Univ, Sci Measurements Res Inst, Sendai, Miyagi 98077, Japan

[3] Electrotech Lab, Tsukuba, Ibaraki 305, Japan

[4] Univ Tokyo, Dept Chem, Tokyo 113, Japan

[5] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[6] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[7] KLA Tencor, Milpitas, CA 95035 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.83.1640

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The atomic structure of the c(2 X 2) reconstruction of the C-terminated 3C-SiC(001) surface was unambiguously determined by scanning tunneling microscopy and surface-core-level-resolved photoelectron diffraction studies. This surface is found to uniquely and uniformly consist of anomalous bridge-bonded C dimers with a C-C bond length of 1.22 Angstrom. Furthermore, an extensive angle-resolved photoemission study clearly identifies two occupied pi state bands due to the surface-normal and -parallel pi orbitals of the triple-bonded C dimers. This provides an electronic explanation of the stability of this unique surface reconstruction.

引用

页码：1640 / 1643

页数：4

共 32 条

[1] ENERGETICS OF THE C(2X2) RECONSTRUCTION OF THE BETA-SIC(100) SURFACE [J].