Electron standing waves on the Si(111)-√3x√3-Ag surface

被引：53

作者：

Sato, N

Takeda, S

Nagao, T

Hasegawa, S

机构：

[1] Univ Tokyo, Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[2] Japan Sci & Technol Corp, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.59.2035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron standing waves have been observed near step edges and out-of-phase domain boundaries on the Si(lll)-root 3 x root 3-Ag surface using scanning tunneling microscopy at 6 K. This means that this surface has a two-dimensional free-electron-like surface electronic state. Their wavelengths change with the bias voltages, so that the dispersion relations between energy and wave number have been obtained. We have found two types of out-of-phase domain boundaries of the root 3 x root 3-Ag structure, one of which acts as a potential barrier for the surface-state electrons to make the standing waves, while the other type does not. [S0163-1829(99)00203-9].

引用

收藏

页码：2035 / 2039

页数：5

相关论文

共 24 条

[1] REAL-SPACE IMAGING OF ELECTRON-SCATTERING PHENOMENA AT METAL-SURFACES [J].

AVOURIS, P ;

LYO, IW ;

WALKUP, RE ;

HASEGAWA, Y .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (03) :1447-1455

[2] IMAGING STANDING WAVES IN A 2-DIMENSIONAL ELECTRON-GAS [J].

CROMMIE, MF ;

LUTZ, CP ;

EIGLER, DM .

NATURE, 1993, 363 (6429) :524-527

[3] STRUCTURE OF THE (ROOT(3)X-ROOT(3)R30-DEGREES AG/SI(111) SURFACE FROM 1ST-PRINCIPLES CALCULATIONS - REPLY [J].

DING, YG ;

CHAN, CT ;

HO, KM .

PHYSICAL REVIEW LETTERS, 1992, 69 (16) :2452-2452

[4] STRUCTURE OF THE (SQUARE-ROOT-OF-3 X SQUARE-ROOT-OF-3)R30-DEGREES AG/SI(111) SURFACE FROM 1ST-PRINCIPLES CALCULATIONS [J].

DING, YG ;

CHAN, CT ;

HO, KM .

PHYSICAL REVIEW LETTERS, 1991, 67 (11) :1454-1457

[5] Anisotropic standing-wave formation on an Au(111)-(23x root 3) reconstructed surface [J].

Fujita, D ;

Amemiya, K ;

Yakabe, T ;

Nejoh, H ;

Sato, T ;

Iwatsuki, M .

PHYSICAL REVIEW LETTERS, 1997, 78 (20) :3904-3907

[6] Electrical conduction via surface-state bands [J].

Hasegawa, S ;

Tong, X ;

Jiang, CS ;

Nakajima, Y ;

Nagao, T .

SURFACE SCIENCE, 1997, 386 (1-3) :322-327

[7] IMAGING OF THE CU(111) SURFACE-STATE IN SCANNING-TUNNELING-MICROSCOPY [J].

HORMANDINGER, G .

PHYSICAL REVIEW B, 1994, 49 (19) :13897-13905

[8] FERMI-LEVEL PINNING AND SURFACE-STATE BAND-STRUCTURE OF THE SI(111)-(SQUARE-ROOT-OF-3XSQUARE-ROOT-OF-3) R30-DEGREES-AG SURFACE [J].

JOHANSSON, LSO ;

LANDEMARK, E ;

KARLSSON, CJ ;

UHRBERG, RIG .

PHYSICAL REVIEW LETTERS, 1989, 63 (19) :2092-2095

[9] STRUCTURE-ANALYSIS OF THE SI(111) SQUARE-ROOT 3 X SQUARE-ROOT 3R30-DEGREES-AG SURFACE [J].

KATAYAMA, M ;

WILLIAMS, RS ;

KATO, M ;

NOMURA, E ;

AONO, M .

PHYSICAL REVIEW LETTERS, 1991, 66 (21) :2762-2765

[10] SCANNING-TUNNELING-MICROSCOPY INVESTIGATION OF THE NUCLEATION AND GROWTH OF AG/SI(111)-(ROOT-3X-ROOT-3) [J].

MCCOMB, DW ;

MOFFATT, DJ ;

HACKETT, PA ;

WILLIAMS, BR ;

MASON, BF .

PHYSICAL REVIEW B, 1994, 49 (24) :17139-17148