Interface States in SiO2/4H-SiC(0001) Interfaces from First-Principles: Effects of Si-Si Bonds and of Nitrogen Atom Termination

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First-principles calculations for the abrupt SiO2/4H-SiC interfaces accounting for Si-Si bonding and Nitrogen atom termination have been performed. Interface states due to Si-Si bonds appear at the valence band edge. Interface states at the midgap vanish when N atom terminates the Si dangling bond, but the interface states arising from the Si-N bonds appear at the valence band edge at the same time.

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Periodical:

Materials Science Forum (Volumes 483-485)

Edited by:

Dr. Roberta Nipoti, Antonella Poggi and Andrea Scorzoni

Pages:

573-576

Citation:

T. Ohnuma et al., "Interface States in SiO2/4H-SiC(0001) Interfaces from First-Principles: Effects of Si-Si Bonds and of Nitrogen Atom Termination", Materials Science Forum, Vols. 483-485, pp. 573-576, 2005

Online since:

May 2005

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$38.00

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