DYNAMIC INTERACTION OF SURFACE ELECTRON-HOLE PAIRS WITH SURFACE-DEFECTS - SURFACE SPECTROSCOPY MONITORED BY PARTICLE EMISSIONS

被引：50

作者：

KANASAKI, J

OKANO, A

ISHIKAWA, K

NAKAI, Y

ITOH, N

机构：

[1] Department of Physics, Faculty of Science, Nagoya University, Chikusaku, Nagoya 464-01, Furocho

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.70.2495

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Excitation spectra and optical anisotropy for laser-induced Ga0 emission initiated by defects on GaAs(110) surfaces have been measured. It is found that the Ga0 emission yield is enhanced sharply when the photon energy increases across both 1.87 and 2.55 eV and that the enhancement is much larger for photons polarized parallel to the [110BAR] direction than for those polarized perpendicular. The result indicates that electron-hole pairs on the surface are particularly effective in the defect-initiated emission of Ga0.

引用

收藏

页码：2495 / 2498

页数：4

相关论文

共 16 条

[1] PHOTOELECTRON-SPECTROSCOPY OF SURFACE-STATES ON SEMICONDUCTOR SURFACES [J].

HANSSON, GV ;

UHRBERG, RIG .

SURFACE SCIENCE REPORTS, 1988, 9 (5-6) :197-292

[2] CHARACTERIZATION OF SURFACE-DEFECTS BY MEANS OF LASER-INDUCED GA0 EMISSION FROM GAP SURFACES [J].

HATTORI, K ;

OKANO, A ;

NAKAI, Y ;

ITOH, N ;

HAGLUND, RF .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (36) :7001-7006

[3] LASER-INDUCED ELECTRONIC PROCESSES ON GAP (110) SURFACES - PARTICLE-EMISSION AND ABLATION INITIATED BY DEFECTS [J].

HATTORI, K ;

OKANO, A ;

NAKAI, Y ;

ITOH, N .

PHYSICAL REVIEW B, 1992, 45 (15) :8424-8436

[4]

HIMPSEL FJ, 1990, SURF SCI REP, V12, P1, DOI 10.1016/0167-5729(90)90005-X

[5] ANGLE-RESOLVED PHOTOEMISSION FROM GAAS (110) SURFACE-STATES [J].

HUIJSER, A ;

VANLAAR, J ;

VANROOY, TL .

PHYSICS LETTERS A, 1978, 65 (04) :337-339

[6] FORMATION OF INTERSTITIAL-VACANCY PAIRS BY ELECTRONIC EXCITATION IN PURE IONIC-CRYSTALS [J].

ITOH, N ;

TANIMURA, K .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1990, 51 (07) :717-735

[7]

ITOH N, 1992, IN PRESS 5TH P WORKS

[8] ORIGIN OF SURFACE ANISOTROPIES IN THE OPTICAL-SPECTRA OF III-V-COMPOUNDS [J].

MANGHI, F ;

MOLINARI, E ;

DELSOLE, R ;

SELLONI, A .

PHYSICAL REVIEW B, 1989, 39 (17) :13005-13008

[9]

MENZEL D, 1964, J CHEM PHYS, V41, P331

[10] NONTHERMAL LASER SPUTTERING FROM SOLID-SURFACES [J].

NAKAI, Y ;

HATTORI, K ;

OKANO, A ;

ITOH, N ;

HAGLUND, RF .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1991, 58 (3-4) :452-462