Published August 15, 1986 | Version v1
Journal article

Initial stage of thermal oxidation of the Si(111)-(7 x 7) surface

  • 1. Atsugi Electrical Communication Laboratories, Nippon Telegraph and Telephone Corporation, 3-1, Morinosato Wakamiya, Atsugi-shi, Kanagawa, 243-01 Japan

Description

We report a systematic study of the early oxidation process in a wide temperature range (20--700XdeC) for the Si(111)-(7 x 7) annealed surface. Oxygen uptake data obtained by Auger-electron spectroscopy indicate that the surface oxygen uptake increases and then gradually saturates with O2 exposure at 20XdeC. At intermediate temperatures, there is no saturation and the oxygen uptake rate is enhanced. At 700XdeC, the uptake rate is enhanced in the high-exposure (or high-O2-pressure) region, but is significantly reduced in the low-exposure region, presumably because of oxygen desorption as volatile SiO

Additional details

Publishing Information

Journal Title
Phys. Rev., B: Condens. Matter
Journal Volume
34
Journal Issue
4
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
2706-2717
ISSN
0163-1829
CODEN
PRBMD