Silver-Induced 3×3 Phase on 6H-SiC(0001)√3×√3 Surface

Silver-Induced 3×3 Phase on 6H-SiC(0001)√3×√3 Surface

The processes of structural and morphological change of a 6H-SiC(0001)√3×√3 surface induced by Ag deposition and annealing have been studied by scanning tunneling microscopy (STM). A surface phase with 3×3 periodicity was found for Ag adsorption onto the √3×√3 surface at 500°C. STM images of this su...

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Veröffentlicht in:Japanese Journal of Applied Physics 2000-07, Vol.39 (7S), p.4343
Hauptverfasser: Kubo, Osamu, Harada, Toru, Kobayashi, Tadashi, Ryu, Jeong-Tak, Katayama, Mitsuhiro, Oura, Kenjiro
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container_issue 7S
container_start_page 4343
container_title Japanese Journal of Applied Physics
container_volume 39
creator Kubo, Osamu
Harada, Toru
Kobayashi, Tadashi
Ryu, Jeong-Tak
Katayama, Mitsuhiro
Oura, Kenjiro
description The processes of structural and morphological change of a 6H-SiC(0001)√3×√3 surface induced by Ag deposition and annealing have been studied by scanning tunneling microscopy (STM). A surface phase with 3×3 periodicity was found for Ag adsorption onto the √3×√3 surface at 500°C. STM images of this surface revealed one round protrusion per 3×3 unit cell in the empty state, and this round protrusion demonstrated a trimer like appearance in the filled state. We also observed the presence of 2D-island-like areas with no periodicity, which were surrounded by the 3×3-Ag surface phase. These structures disappeared and the original √3×√3 surface phase was recovered by annealing at 600°C.
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title Silver-Induced 3×3 Phase on 6H-SiC(0001)√3×√3 Surface
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