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- 1. phys. stat. sol. (b) 245, 1298-1314 (2008) , “EPR identification of intrinsic defects in SiC”, J. Isoya, T. Umeda, N. Mizuochi, N. T. Son, E. Janzen, T. OhshimaThe structure determination of intrinsic defects in 4H-SiC, 6H-SiC, and 3C-SiC by means of EPR is based on measuring the angular dependence of the 29Si/13C hyperfine (HF) satellite lines, from which spin densities, sp-hybrid ratio, and p-orbital direction can be determined over... (Read more)Si SiC diamond| EPR Theory electron-irradiation thermal-meas./anneal-exp.| +1 -1 0(neutral) 1.0eV~ 13C 29Si C1h C3v Carbon Csi D2d EI5/6 HEI1 HEI9/10 P6/7 Silicon T1 Td Tv2a V1/2/3 Vc Vsi antisite dangling-bond mono(=1) motional-effect n-type p-type pair(=2) quartet semi-insulating spin-relaxation triplet vacancy .inp files: SiC/Baranov/Baranov_g.inp SiC/EI5_C1h/5.inp SiC/EI5_C3v/5.inp SiC/EI6_RT/6.inp SiC/HEI10/HEI10a.inp SiC/HEI10/HEI10b.inp SiC/HEI1_C1h/1.inp SiC/HEI9/HEI9a.inp SiC/HEI9/HEI9b.inp SiC/SI5_C1h/4.inp SiC/Ky2/Ky2.inp SiC/Tv2a/Main.INP SiC/Vsi-_II_4H/Main.INP SiC/Vsi-_II_6H/Main.INP SiC/Vsi-_I_4H/Main.INP SiC/Vsi-_I_6H/Main.INP | last update: Takahide Umeda
- 2. Appl. Phys. Lett. 91, 133507 (2007) , “Identification of atomic-scale defect structure involved in the negative bias temperature instability in plasma-nitrided devices”, J. P. Campbell, P. M. Lenahan, A. T. Krishnan, and S. KrishnanWe utilize a very sensitive electron spin resonance technique called spin-dependent tunneling to identify defect centers involved in the negative bias temperature instability in plasma-nitrided p-channel metal-oxide-silicon field-effect transistors. The defect's 29Si hyperfine... (Read more)
- 3. Phys. Rev. B 75, 245202 (2007) , “Identification of positively charged carbon antisite-vacancy pairs in 4H-SiC”, T. Umeda, J. Ishoya, T. Ohshima, N. Morishita, H. Itoh, and A. GaliAn antisite-vacancy pair and a monovacancy are a set of fundamental stable and/or metastable defects in compound semiconductors. Theory predicted that carbon antisite-vacancy pairs would be much more stable in p-type SiC than silicon vacancies and that they would be a common defect. However,... (Read more)
- 4. Phys. Rev. Lett. 96, 55501 (2006) , “Divacancy in 4H-SiC”, N. T. Son, P. Carlsson, J. ul Hassan, E. Janz?n, T. Umeda, J. Isoya, A. Gali, M. Bockstedte, N. Morishita, T. Ohshima, H. ItohElectron paramagnetic resonance and ab initio supercell calculations suggest that the P6/P7 centers, which were previously assigned to the photoexcited triplet states of the carbon vacancy-antisite pairs in the double positive charge state, are related to the triplet ground... (Read more)
- 5. J. Appl. Phys. 96, 2406-2408 (2004) , “Annealing behavior of the carbon vacancy in electron-irradiated 4H-SiC”, Z. Zolnai, N. T. Son, C. Hallin, and E. JanzénElectron paramagnetic resonance (EPR) was used to study the annealing behavior of the positively charged carbon vacancy (EI5 center) in electron-irradiated 4H-SiC. At ~1000 °C the EPR signal of the defect starts decreasing gradually. Clear ligand hyperfine structure is still observed after... (Read more)
- 6. Appl. Phys. Lett. 80, 4753-4755 (2002) , “Characterization of S centers generated by thermal degradation in SiO2 on (100)Si”, A. Stesmans, B. Nouwen, D. Pierreux, and V. V. Afanas'evThe structural degradation of thermal SiO2 on (100)Si under isochronal vacuum annealing in the range Tan = 950 °C1250 °C was monitored by electron spin resonance (ESR) in terms of point defect creation, including... (Read more)
- 7. Appl. Phys. Lett. 76, 3771-3773 (2000) , “Do Pb1 centers have levels in the Si band gap? Spin-dependent recombination study of the Pb1 "hyperfine spectrum"”, Tetsuya D. Mishima and Patrick M. LenahanThe electronic properties of the (001) Si/SiO2 Pb1 defect are the subject of considerable controversy. We present spin-dependent recombination results which indicate most strongly that the Pb1 centers have levels in the Si band gap. Our... (Read more)
- 8. Phys. Rev. B 48, 2418-2435 (1993) , “Structural relaxation of Pb defects at the (111)Si/SiO2 interface as a function of oxidation temperature: The Pb-generation-stress relationship”, A. StesmansElectron-spin-resonance (ESR) studies of intrinsic Pb defects at the (111)Si/SiO2 interface have been carried out as a function of oxidation temperature Tox for the range 22<ToxTox and high-Tox... (Read more)
- 9. Phys. Rev. B 14, 4506 (1976) , “EPR study of neutron-irradiated silicon: A positive charge state of the <100> split di-interstitial”, Young-Hoon Lee, Nikolai N. Gerasimenko, and James W. CorbettThe Si-P6 spectrum shows an intrinsic tetragonal symmetry with the C2 axis along ?100? and distortion forces the principal axes of the g tensor to be displaced in the {100} plane. The g tensor previously identified by Jung and Newell was found to be due to the motionally averaged state... (Read more)
- 10. Phys. Rev. Lett. 36, 1329 (1976) , “EPR Observation of the Isolated Interstitial Carbon Atom in Silicon ”, G. D. Watkins and K. L. BrowerAn EPR spectrum, labeled Si-G12, is identified as arising from an isolated interstitial carbon atom in silicon. A ?100? C-Si interstitialcy model is suggested for the defect in which a silicon and carbon atom pair partially share single substitutional site. Because carbon is isoelectronic with... (Read more)
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Updated at 2010-07-20 16:50:39
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