Reflection high-energy positron diffraction study of a Si(001) surface

被引：4

作者：

Hayashi, K ^{[1
]}

Fukaya, Y ^{[1
]}

Kawasuso, A ^{[1
]}

Ichimiya, A ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Takasaki, Gumma 3701292, Japan

来源：

APPLIED SURFACE SCIENCE | 2005年 / 244卷 / 1-4期

关键词：

reflection high-energy positron diffraction; total reflection; Si(001); rocking curve; dynamical calculation; diffraction pattern;

D O I：

10.1016/j.apsusc.2004.09.133

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 studied the positron diffraction from the Si(0 0 1) 2 x 1 surfaces. In the diffraction patterns the fractional order spots are brightly visible. The vertical positions of the dimer are determined from the numerical analysis of the rocking curves based on the dynamical diffraction theory at room temperature and 130 K. The heights of the two atoms of the dimer are both 1.3 +/- 0.2 angstrom at room temperature and 1.3 +/- 0.2 angstrom and 1.1 +/- 0.2 angstrom at 130 K from the layer below the dimers. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：145 / 148

页数：4

共 23 条

[1] ATOMIC AND ELECTRONIC-STRUCTURES OF RECONSTRUCTED SI(100) SURFACES [J].

CHADI, DJ .

PHYSICAL REVIEW LETTERS, 1979, 43 (01) :43-47

[2] Precise determination of surface Debye-temperature of Si(111)-7 x 7 surface by reflection high-energy positron diffraction [J].

Fukaya, Y ;

Kawasuso, A ;

Hayashi, K ;

Ichimiya, A .

APPLIED SURFACE SCIENCE, 2004, 237 (1-4) :29-33

[3] Phase transition from asymmetric to symmetric dimer structure on the Si(001) surface at high temperature [J].

Fukaya, Y ;

Shigeta, Y .

PHYSICAL REVIEW LETTERS, 2003, 91 (12) :126103-126103

[4]

FUKAYA Y, IN PRESS PHYS REV B

[5] Kinematical and dynamical analyses of reflection high-energy positron diffraction (RHEPD) patterns from Si(111) 7 x 7 surfaces [J].

Hayashi, K ;

Fukaya, Y ;

Kawasuso, A ;

Ichimiya, A .

APPLIED SURFACE SCIENCE, 2004, 237 (1-4) :34-39

[6] THE ATOMIC GEOMETRY OF SI(100)-(2X1) REVISITED [J].

HOLLAND, BW ;

DUKE, CB ;

PATON, A .

SURFACE SCIENCE, 1984, 140 (02) :L269-L278

[7] MANY-BEAM CALCULATION OF REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION (RHEED) INTENSITIES BY THE MULTI-SLICE METHOD [J].

ICHIMIYA, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1983, 22 (01) :176-180

[8]

Ichimiya A., 1992, Solid State Phenom, V28-29, P143

[9] ORDER-DISORDER PHASE-TRANSITION ON THE SI(001) SURFACE - CRITICAL ROLE OF DIMER DEFECTS [J].

INOUE, K ;

MORIKAWA, Y ;

TERAKURA, K ;

NAKAYAMA, M .

PHYSICAL REVIEW B, 1994, 49 (20) :14774-14777

[10] Si(111)-(7x7) surface probed by reflection high-energy positron diffraction [J].

Kawasuso, A ;

Fukaya, Y ;

Hayashi, K ;

Maekawa, M ;

Okada, S ;

Ichimiya, A .

PHYSICAL REVIEW B, 2003, 68 (24)

← 1 2 3 →