Excitation Properties of Silicon Vacancy in Silicon Carbide

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Isolated point defects possessing high spin ground state and below-band-gap excitation may play a key role in realizing solid state quantum bits in semiconductors which are the basic building blocks of quantum computers. Silicon vacancy in silicon carbide provides these features making it a feasible candidate in this special and emerging field of science. However, it has been not clarified what is the exact nature of the luminescence of silicon vacancy detected in hexagonal polytypes. This is the first crucial step needed to understand this basic defect in silicon carbide. We report density functional theory based calculations on silicon vacancy defect. Based on the obtained results we identify the silicon vacancy related photoluminescence signals with the negatively charged defect.

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Periodical:

Materials Science Forum (Volumes 717-720)

Edited by:

Robert P. Devaty, Michael Dudley, T. Paul Chow and Philip G. Neudeck

Pages:

255-258

Citation:

A. Gali, "Excitation Properties of Silicon Vacancy in Silicon Carbide", Materials Science Forum, Vols. 717-720, pp. 255-258, 2012

Online since:

May 2012

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[1] E. Sörman, N. T. Son, W. M. Chen, O, Kordina, C. Hallin, and E. Janzén, Phys. Rev. B 61 (2000) 2613.

[2] P. G. Baranov, A. P. Bundakova, A. A. Soltamova, S. B. Orlinskii, I. V. Borovykh, R. Zondervan, R. Verberk, and J. Schmidt, Phys. Rev. B 83 (2011) 125203.

DOI: https://doi.org/10.1103/physrevb.83.125203

[3] N. Mizuochi, S. Yamasaki, H. Takizawa, N. Morishita, T. Ohshima, H. Itoh, and J. Isoya, Phys. Rev. B 66 (2002) 235202.

[4] N. Mizuochi, S. Yamasaki, H. Takizawa, N. Morishita, T. Ohshima, H. Itoh, T. Umeda, and J. Isoya, Phys. Rev. B 72 (2005) 235208.

[5] H. Isono, Michio Tajima, Norihiro Hoshino, and H. Sugimoto, Mater. Sci. Forum 600-603 (2009) 545.

[6] E. Janzén, A. Gali, P. Carlsson, A. Gällström, B. Magnusson, and N. T. Son, Physica B 404 (2009) 4354.

DOI: https://doi.org/10.1016/j.physb.2009.09.023

[7] A. Gali, Phys. Stat. Sol. B 248 (2011) 1337.

[8] Peter Deák, Adam Gali, Bálint Aradi, and Thomas Frauenheim, Phys. Stat. Sol. B 248 (2011) 790.

DOI: https://doi.org/10.1002/pssb.201046210

[9] T. Hornos, A. Gali, and B.G. Svensson, Mater. Sci. Forum 679-680 (2011) 261.

[10] P. Deák, J. Miró, A. Gali, L. Udvardi and H. Overhof, Appl. Phys. Lett. 75 (1999) 2103.

DOI: https://doi.org/10.1063/1.124930

[11] Jérémie Lefèvre, Jean-Marc Costantini, Didier Gourier, Stéphane Esnouf, and Guillaume Petite, Phys. Rev. B 83 (2011) 075201.

DOI: https://doi.org/10.1103/physrevb.83.075201