Divacancy Model for P6/P7 Centers in 4H- and 6H-SiC

Nguyen Tien Son; T. Umeda; Junichi Isoya; Adam Gali; M. Bockstedte; Björn Magnusson; Alexsandre Ellison; Norio Morishita; Takeshi Ohshima; Hisayoshi Itoh; Erik Janzén

doi:10.4028/www.scientific.net/MSF.527-529.527

Paper Titles

Deep Traps in High-Purity Semi-Insulating 6H-SiC Substrates: Thermally Stimulated Current Spectroscopy
p.509

Quenching Photoconductivity and Photoelectric Memory in 6H-SiC
p.513

Deep Level Point Defects in Semi-Insulating SiC
p.517

Divacancy and Its Identification: Theory
p.523

Divacancy Model for P6/P7 Centers in 4H- and 6H-SiC
p.527

Thermal Evolution of Defects in Semi-Insulating 4H SiC
p.531

Evidence of the Ground Triplet State of Silicon-Carbon Divacancies (P6, P7 Centers) in 6H SiC: An EPR Study
p.535

Signature of the Negative Carbon Vacancy-Antisite Complex
p.539

Electron Paramagnetic Resonance Study of the HEI4/SI5 Center in 4H-SiC
p.543

HomeMaterials Science ForumMaterials Science Forum Vols. 527-529Divacancy Model for P6/P7 Centers in 4H- and...

Divacancy Model for P6/P7 Centers in 4H- and 6H-SiC

Abstract:

Electron paramagnetic resonance (EPR) studies of the P6/P7 centers in 4H- and 6H-SiC are reported. The obtained principal values of the hyperfine tensors of C and Si neighbors are in good agreement with the values of the neutral divacancy (VCVSi 0) calculated by ab initio supercell calculations. The results suggest that the P6/P7 centers, which were previously assigned to the photo-excited triplet states of the carbon vacancy-carbon antisite pairs in the double positive charge state (VCCSi 2+), are related to the triplet ground states of the C3v/C1h configurations of VCVSi 0.

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Materials Science Forum (Volumes 527-529)

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527-530

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.527-529.527

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October 2006

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Nguyen Tien Son, T. Umeda, Junichi Isoya, Adam Gali, M. Bockstedte, Björn Magnusson, Alexsandre Ellison, Norio Morishita, Takeshi Ohshima, Hisayoshi Itoh, Erik Janzén

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Ab Initio Calculation, Divacancy, Electron Paramagnetic Resonance (EPR)

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