Divacancy in 4h-sic

NT Son, P Carlsson, J Ul Hassan, E Janzén, T Umeda… - Physical review …, 2006 - APS
Electron paramagnetic resonance and ab initio supercell calculations suggest that the P 6/P
7 centers, which were previously assigned to the photoexcited triplet states of the carbon …

Optical charge state control of spin defects in 4H-SiC

G Wolfowicz, CP Anderson, AL Yeats… - Nature …, 2017 - nature.com
Defects in silicon carbide (SiC) have emerged as a favorable platform for optically active
spin-based quantum technologies. Spin qubits exist in specific charge states of these …

Ab initio study of the annealing of vacancies and interstitials in cubic SiC: Vacancy-interstitial recombination and aggregation of carbon interstitials

M Bockstedte, A Mattausch, O Pankratov - Physical Review B, 2004 - APS
The annealing kinetics of mobile intrinsic defects in cubic SiC is investigated by an ab initio
method based on density-functional theory. The interstitial-vacancy recombination, the …

Defects as qubits in and

L Gordon, A Janotti, CG Van de Walle - Physical Review B, 2015 - APS
We employ hybrid density functional calculations to search for defects in different polytypes
of SiC that may serve as qubits for quantum computing. We explore the divacancy in 4 H …

Conversion pathways of primary defects by annealing in proton-irradiated -type -SiC

R Karsthof, ME Bathen, A Galeckas, L Vines - Physical Review B, 2020 - APS
The development of defect populations after proton irradiation of n-type 4 H-SiC and
subsequent annealing experiments is studied by means of deep level transient (DLTS) and …

Ag diffusion in cubic silicon carbide

D Shrader, SM Khalil, T Gerczak, TR Allen… - Journal of Nuclear …, 2011 - Elsevier
The diffusion of Ag impurities in bulk 3C–SiC is studied using ab initio methods based on
density functional theory. This work is motivated by the desire to reduce transport of …

Density-functional calculations of defect formation energies using supercell methods: Defects in diamond

J Shim, EK Lee, YJ Lee, RM Nieminen - Physical Review B—Condensed …, 2005 - APS
Density-functional theory combined with periodic boundary conditions is used to
systematically study the dependence of defect formation energy on supercell size for …

Identification of intrinsic defects in SiC: towards an understanding of defect aggregates by combining theoretical and experimental approaches

M Bockstedte, A Gali, A Mattausch… - … status solidi (b), 2008 - Wiley Online Library
In SiC, mobile point defects may form thermally stable clusters and aggregates, such as di‐
vacancies or carbon interstitial complexes. Although predicted by theory, experimental …

Compensation of p-type doping in Al-doped 4H-SiC

Y Huang, R Wang, Y Zhang, D Yang, X Pi - Journal of Applied Physics, 2022 - pubs.aip.org
One of the major challenges of 4H-silicon carbide (4H-SiC) is that the preparation of low
resistivity p-type 4H-SiC single crystals lags seriously behind that of low resistivity n-type 4H …

Theoretical study of vacancy diffusion and vacancy-assisted clustering of antisites in SiC

E Rauls, T Frauenheim, A Gali, P Deák - Physical Review B, 2003 - APS
Using the self-consistent-charge density-functional-based tight-binding (SCC-DFTB)
method, we have investigated the migration of vacancies at high temperatures, taking into …