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Browse Journals & Magazines > Applied Physics Letters ...> Volume:85 Issue:18 Help

Study of the interaction of 4H–SiC and 6H–SiC(0001)Si surfaces with atomic nitrogen

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5 Author(s)
Losurdo, Maria ; Institute of Inorganic Methodologies and of Plasmas-CNR, and INSTM, via Orabona, 4- 70126 Bari, Italy ; Giangregorio, Maria M. ; Bruno, Giovanni ; Brown, April
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The interaction of atomic nitrogen with 4H– and 6H–SiC(0001) Si-face surfaces is investigated. Clean and atomically smooth terraced surfaces obtained by in situ cleaning using atomic hydrogen have been exposed at 200 °C and 750 °C to atomic nitrogen produced by a rf remote N2 plasma. Spectroscopic ellipsometry is used for real-time monitoring of the kinetics of SiC surface modifications, and determining the thickness and properties of the nitrided layer. Surface potential measurements reveal the band bending of the nitrided SiC surface. An improvement in the heteroepitaxy of GaN on the low-temperature nitrided SiC surface is found.

Published in:
Applied Physics Letters  (Volume:85 ,  Issue: 18 )

Date of Publication: Nov 2004

Page(s):
4034 - 4036
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.1814438
Date of Current Version :
18 June 2009
Issue Date :
Nov 2004

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