Presentation 1998/12/10
VT-STM observation of Si surfaces damaged by ion impact
Toshio Seki, Jiro Matsuo, Isao Yamada,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Variable Temperature Scanning Tunneling Microscope(VT-STM)allows us to study annealing process of the damage caused by ion impact. A Si(111)surface irradiated by Xe ion, with Va=1kV and Dose-6.4×10^12 ions/cm^2, was observed by VT-STM. The disordered image was obtained at room temperature after irradiation. Many redeposited Si atoms and several vacancy clusters were found on the surface. When it was observed by VT-STM at 600℃, some fragments of the 7×7 structure and vacancy clusters remained on the surface. At this temperature, only atoms on bondary between vacancy cluster and 7×7 structure could move, but the large vacancy clusters didn't move. These indicate that redeposited Si atoms move fast , but vacancies move very slow on surfaces at 600℃.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) STM / Si / Ion irradiation / defect on surface / cluster / annealing process / vacancy
Paper # SDM98-172
Date of Issue

Conference Information
Committee SDM
Conference Date 1998/12/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Silicon Device and Materials (SDM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) VT-STM observation of Si surfaces damaged by ion impact
Sub Title (in English)
Keyword(1) STM
Keyword(2) Si
Keyword(3) Ion irradiation
Keyword(4) defect on surface
Keyword(5) cluster
Keyword(6) annealing process
Keyword(7) vacancy
1st Author's Name Toshio Seki
1st Author's Affiliation Ion Beam Engineering Experimental Laboratory, Kyoto University()
2nd Author's Name Jiro Matsuo
2nd Author's Affiliation Ion Beam Engineering Experimental Laboratory, Kyoto University
3rd Author's Name Isao Yamada
3rd Author's Affiliation Ion Beam Engineering Experimental Laboratory, Kyoto University
Date 1998/12/10
Paper # SDM98-172
Volume (vol) vol.98
Number (no) 445
Page pp.pp.-
#Pages 8
Date of Issue