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- 1. 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)
- 2. Appl. Phys. Lett. 84, 3406-3408 (2004) , “Structure of 6H silicon carbide/silicon dioxide interface trapping defects”, David J. Meyer, Nathaniel A. Bohna, and Patrick M. LenahanWe utilize spin-dependent recombination (SDR) to observe deep level trap defects at or very near the interface of 6H silicon carbide and the SiO2 gate dielectric in SiC metal-oxide-semiconductor field effect transistors. The SDR response is strongly correlated to SiC/SiO2... (Read more)
- 3. 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)
- 4. Appl. Phys. Lett. 78, 1453-1454 (2001) , “Response to "Comment on `Do Pb1 centers have levels in the Si band gap? Spin-dependent recombination study of the Pb1 "hyperfine spectrum" ' " [Appl. Phys. Lett. 78, 1451 (2001)]”, Tetsuya D. Mishima and Patrick M. LenahanWe recently published a letter in which we utilized spin-dependent recombination (SDR) measurements to demonstrate that Pb1 centers, silicon dangling-bond defects at the (001) Si/SiO2 interface, have electronic levels in the silicon band gap.1 In their comment on our... (Read more)
- 5. 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)
- 6. Phys. Rev. Lett. 85, 2773-2776 (2000) , “Dangling Bond Defects at Si-SiO2 Interfaces: Atomic Structure of the Pb1 Center”, A. Stirling, A. Pasquarello, J.-C. Charlier, R. CarUsing a first-principles approach, we characterize dangling bond defects at Si-SiO2 interfaces by calculating hyperfine parameters for several relaxed structures. Interface models, in which defect Si atoms remain close to crystalline sites of the substrate upon relaxation, successfully... (Read more)
- 7. J. Vac. Sci. Technol. B 16, 2134-2153 (1998) , “What can electron paramagnetic resonance tell us about the Si/SiO2 system?”, P. M. Lenahan, J. F. Conley, Jr.Electron paramagnetic resonance (EPR) measurements of Si/SiO2 systems began over 30 years ago. Most EPR studies of Si/SiO2 systems have dealt with two families of defects: Pb centers and E centers. Several variants from each group have... (Read more)BPSG PSG Si SiO2| EDMR EPR electric-field-effect electrical-meas. etching gamma-irradiation| 10B 11B 1H 29Si 2D 31P BOHC Boron Deuterium E' E'-delta H(I) Hydrogen Nb Nitrogen Oxygen P1 P2 P4 POHC Pb Pb0 Pb1 Phosphorus Silicon amorphous complex(=3) dangling-bond device dielectric interface pair(=2) | last update: Takahide Umeda
- 8. Phys. Rev. B 58, 15801-15809 (1998) , “Pb1 interface defect in thermal (100)Si/SiO2: 29Si hyperfine interaction”, A. Stesmans, B. Nouwen, V. V. Afanas’evAn optimized electron spin resonance study has resulted in the observation of the full angular dependence of the hyperfine interaction spectrum associated with the unpaired electron of the Pb1 point defect at the thermal (100)Si/SiO2 interface, showing that the dominant... (Read more)
- 9. Appl. Phys. Lett. 63, 920-922 (1993) , “Nature of Pb-like dangling-orbital centers in luminescent porous silicon”, F. C. Rong, J. F. Harvey, E. H. Poindexter, G. J. GerardiThe Pb-like dangling-orbit centers in luminescent porous silicon (LPSi) have been enhanced to very high concentration (1015 cm2) by gentle oxidation. High signal-to-noise ratio and very sharp lines enable the g-value maps, and... (Read more)
- 10. 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)
- 11. Phys. Rev. B 47, 10899-10902 (1993) , “Defects in porous p-type Si: An electron-paramagnetic-resonance study”, H. J. von Bardeleben, D. Stievenard, A. Grosman, C. Ortega, J. SiejkaThe defects in p+ porous silicon of low and high porosity have been studied by using electron-paramagnetic-resonance (EPR) spectroscopy and compared with an impurity analysis obtained from nuclear reaction analysis (NRA). The EPR measurements show, in both high- and low-porosity samples,... (Read more)
- 12. J. Non-Cryst. Solids 149, 137-160 (1992) , “Electron spin resonance characterization of self-trapped holes in amorphous silicon dioxide”, David L. GriscomThe electron spin resonance spectra of radiation-induced self-trapped holes (STHs) in amorphous silicon dioxide are isolated by isochromal annealing experiments and computer simulation analyses. Two distinct components, denoted STH1 and STH2 (plus a third component intermediate between the two),... (Read more)
- 13. IEEE Trans. Nucl. Sci. 37, 1650-1657 (1990) , “Spin dependent recombination: A 29Si hyperfine study of radiation-induced Pb centers at the Si/SiO2 interface”, M. A. Jupina , P. M. Lenahan
- 14. Semicond. Sci. Technol. 4, 1045-1060 (1989) , “Spin-dependent and localisation effects at Si/SiO2 device interfaces”, B. Henderson , M. Pepper , R. L. Vranch
- 15. Phys. Rev. B 38, 9674-9685 (1988) , “Hyperfine interactions in cluster models of the Pb defect center”, M. Cook, C. T. WhiteHyperfine interactions in the Pb center (denoted schematically as Si3?Si?) at the Si(111)/SiO2 interface have been studied with use of spin-polarized self-consistent multiple-scattering X? calculations on Si22H21/Si6O18... (Read more)
- 16. Appl. Phys. Lett. 50, 1450 (1987) , “Paramagnetic centers at Si-SiO2 interfaces in silicon-on-insulator films”, W. E. CarlosElectron spin resonance measurements of silicon-on-insulator materials formed oxygen implantation are reported. The principal paramagnetic defect observed is a Pb center at the interface between Si and SiO2 precipitates in the Si film over the buried oxide layer.... (Read more)
- 17. Phys. Rev. B 36, 9638-9648 (1987) , “Theory of the Pb center at the <111> Si/SiO2 interface”, A. H. EdwardsWe present a series of semiempirical calculations on threefold-coordinated silicon at the ?111? Si/SiO2 interface. These were performed on finite clusters of atoms with use of hydrogen terminators in an unrestricted Hartree-Fock formalism wherein we include lattice relaxations. We have... (Read more)
- 18. Appl. Phys. Lett. 43, 1111 (1983) , “29Si hyperfine structure of unpaired spins at the Si/SiO2 interface”, K. L. BrowerThe hyperfine spectrum associated with unpaired electrons at the (111) Si/SiO2 interface (Pb centers) is reported for the first time. Electron paramagnetic resonance measurements indicate that the hyperfine interaction S··I arises from the... (Read more)
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