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- 1. J. Appl. Phys. 104, 014106 (2008) , “Analysis of electrically biased paramagnetic defect centers in HfO2 and HfxSi1−xO2 / (100)Si interfaces”, P. T. Chen, B. B. Triplett, J. J. Chambers, L. Colombo, P. C. McIntyre, and Y. NishiThis study reports on the first experimental observations of electrically biased paramagnetic defects at 800 °C N2 annealed HfxSi1−xO2 (x=0.4, and 0.6)/(100)Si and HfO2/(100)Si interfaces in metal oxide silicon... (Read more)
- 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. Appl. Phys. Lett. 90, 123502 (2007) , “Observation of negative bias stressing interface trapping centers in metal gate hafnium oxide field effect transistors using spin dependent recombination”,The authors combine metal oxide semiconductor (MOS) gated diode measurements and very sensitive electrically detected electron spin resonance measurements to detect and identify negative bias temperature instability (NBTI) generated defect centers in fully processed HfO2 pMOS field effect... (Read more)
- 4. Appl. Phys. Lett. 90, 073507 (2007) , “Fermi-level pinning at polycrystalline silicon-HfO2 interface as a source of drain and gate current 1/f noise”, P. Magnone, F. Crupi, L. Pantisano, and C. PaceThe impact of a submonolayer of HfO2 sandwiched between the SiON gate dielectric and the polycrystalline silicon layer on the low frequency noise of a n-channel metal oxide semiconductor field effect transistor is investigated. Fermi-level pinning at polycrystalline... (Read more)
- 5. Phys. Rev. B 75, 193203 (2007) , “Hf defects in c-Si and their importance for the HfO2/Si interface: Density-functional calculations”, Wanderlã L. Scopel, Antônio J. R. da Silva, and A. FazzioWe have studied, using ab initio density functional theory calculations, substitutional and interstitial Hf impurities in c-Si, for various charge states. Our results indicate that (1) the tetrahedral interstitial defect is energetically more favorable than the substitutional and (2)... (Read more)
- 6. Phys. Rev. B 75, 193201 (2007) , “Compensating point defects in 4He+-irradiated InN”, F. Tuomisto, A. Pelli, K. M. Yu, W. Walukiewicz, and W. J. SchaffWe use positron annihilation spectroscopy to study 2 MeV 4He+-irradiated InN grown by molecular-beam epitaxy and GaN grown by metal-organic chemical-vapor deposition. In GaN, the Ga vacancies act as important compensating centers in the irradiated material, introduced at a... (Read more)
- 7. Phys. Rev. B 75, 144108 (2007) , “Interaction mechanism between edge dislocations and asymmetrical tilt grain boundaries investigated via quasicontinuum simulations”, T. Shimokawa, T. Kinari, and S. ShintakuThe interactions between edge dislocations and grain boundaries—dislocation pileup, dislocation absorption, and dislocation transmission—are studied by performing quasicontinuum simulations. The 112 asymmetrical tilt grain boundaries with different misorientation angles are used. The... (Read more)
- 8. Phys. Rev. B 75, 085423 (2007) , “Room-temperature atmospheric oxidation of Si nanocrystals after HF etching”, X. D. Pi, L. Mangolini, S. A. Campbell, and U. KortshagenThe effect of HF etching of the silicon oxide shell covering the surface of Si nanocrystals (NCs) on the subsequent room-temperature atmospheric oxidation of Si-NCs has been investigated by means of photoluminescence measurements, Fourier transform infrared spectroscopy, and electron paramagnetic... (Read more)
- 9. Phys. Rev. B 75, 075316 (2007) , “Theoretical investigation of a Mn-doped Si/Ge heterostructure”, J. T. Arantes, Antônio J. R. da Silva, A. Fazzio, and A. AntonelliWe investigate, through ab initio density-functional theory calculations, the electronic and structural properties of neutral Mn impurities at tetrahedral interstitial and substitutional sites in both Si and Ge layers of a Si/Ge heterostructure. We conclude that substitutional Mn at the Ge... (Read more)
- 10. Phys. Rev. B 75, 075306 (2007) , “Microcrack-induced strain relief in GaN/AlN quantum dots grown on Si(111)”, G. Sarusi, O. Moshe, S. Khatsevich, D. H. Rich, and B. DamilanoThe optical properties of vertically stacked self-assembled GaN/AlN quantum dots (QD's) grown on Si substrates were studied by means of temporally and spatially resolved cathodoluminescence (CL). An analysis of the CL spectra, thermal activation energies, and measured decay times of the QD... (Read more)
- 11. Phys. Rev. Lett. 98, 216803 (2007) , “High Mobility in LaAlO3/SrTiO3 Heterostructures: Origin, Dimensionality, and Perspectives”, G. Herranz, M. Basletić, M. Bibes, C. Carrétéro, E. Tafra, E. Jacquet, K. Bouzehouane, C. Deranlot, A. Hamzić, J.-M. Broto, A. Barthélémy, and A. FertWe have investigated the dimensionality and origin of the magnetotransport properties of LaAlO3 films epitaxially grown on TiO2-terminated SrTiO3(001) substrates. High-mobility conduction is observed at low deposition oxygen pressures... (Read more)
- 12. Phys. Rev. Lett. 98, 026101 (2007) , “Bonding at the SiC-SiO2 Interface and the Effects of Nitrogen and Hydrogen”, Sanwu Wang, S. Dhar, Shu-rui Wang, A. C. Ahyi, A. Franceschetti, J. R. Williams, L. C. Feldman,, and Sokrates T. PantelidesUnlike the Si-SiO2 interface, the SiC-SiO2 interface has large defect densities. Though nitridation has been shown to reduce the defect density, the effect of H remains an open issue. Here we combine experimental data and the results of first-principles calculations to... (Read more)
- 13. Appl. Phys. Lett. 89, 243101 (2006) , “Random telegraph signals and noise behaviors in carbon nanotube transistors”, Fei Liu, Kang L. Wang, Daihua Zhang, and Chongwu ZhouA random telegraph signal appears at a smaller absolute gate bias for a larger absolute drain-source bias in a carbon nanotube transistor. Its mechanism is attributed to a defect located in the drain side of the Schottky barrier carbon nanotube transistor with Ti/Au as contact material. Furthermore,... (Read more)
- 14. Appl. Phys. Lett. 89, 222103 (2006) , “Comparison of near-interface traps in Al2O3/4H-SiC and Al2O3/SiO2/4H-SiC structures”, Marc Avice, Ulrike Grossner, Ioana Pintilie, Bengt G. Svensson, Ola Nilsen, and Helmer FjellvagAluminum oxide (Al2O3) has been grown by atomic layer deposition on n-type 4H-SiC with and without a thin silicon dioxide (SiO2) intermediate layer. By means of capacitance-voltage and thermal dielectric relaxation current measurements, the interface... (Read more)
- 15. Appl. Phys. Lett. 89, 222101 (2006) , “Reversible creation and annihilation of a local leakage path in HfO2/GeOx stacked gate dielectrics: A direct observation by ultrahigh vacuum conducting atomic force microscopy”, K. Yamamura, K. Kita, A. Toriumi, and K. KyunoBy direct observation using ultrahigh vacuum conducting atomic force microscopy, it is found that a local leakage path in HfO2/GeOx stacks created by an electrical stress with a positive tip bias annihilates after applying a reverse tip bias. The creation and... (Read more)
- 16. Appl. Phys. Lett. 89, 201911 (2006) , “Generation of misfit dislocations by basal-plane slip in InGaN/GaN heterostructures”, R. Liu, J. Mei, S. Srinivasan, F. A. Ponce, H. Omiya, Y. Narukawa, and T. MukaiThe authors have observed that for InxGa1−xN epitaxial layers grown on bulk GaN substrates exhibit slip on the basal plane, when in the presence of free surfaces that intercept the heterointerface and for indium compositions x0.07. This leads to... (Read more)
- 17. Appl. Phys. Lett. 89, 152910 (2006) , “Characterization of atomic-layer-deposited Al2O3/GaAs interface improved by NH3 plasma pretreatment”, Hong-Liang Lu, Liang Sun, Shi-Jin Ding, Min Xu, David Wei Zhang, and Li-Kang WangAl2O3 thin films were deposited by atomic layer deposition on HF-cleaned and NH3 plasma-treated GaAs surfaces, respectively. The precursors used for Al2O3 films are trimethylaluminum and water. Effects of NH3 plasma pretreatment on... (Read more)
- 18. Appl. Phys. Lett. 89, 142909 (2006) , “Fluorine passivation in poly-Si/TaN/HfO2 through ion implantation”, M. H. Zhang, F. Zhu, T. Lee, H. S. Kim, I. J. Ok, G. Thareja, L. Yu, and Jack C. LeeFluorine (F) passivation in poly-Si/TaN/HfO2/p-Si gate stacks through gate ion implantation has been studied. It has been found that when the TaN thickness was less than 15 nm, the mobility and subthreshold swing improved significantly in HfO2 n-channel... (Read more)
- 19. Appl. Phys. Lett. 89, 122112 (2006) , “Interface states for HfO2/Si structure observed by x-ray photoelectron spectroscopy measurements under bias”, Osamu Maida, Ken-ichi Fukayama, Masao Takahashi, Hikaru Kobayashi, Young-Bae Kim, Hyun-Chul Kim, and Duck-Kyun ChoiA 1.0 nm silicon nitride (SiN) layer can prevent reaction between HfO2 and Si completely. In this case, the interface state spectra obtained from x-ray photoelectron spectroscopy measurements under bias have two peaks above and below the midgap, attributable to Si dangling bonds... (Read more)
- 20. Appl. Phys. Lett. 89, 112903 (2006) , “Effect of impurities on the fixed charge of nanoscale HfO2 films grown by atomic layer deposition”, Raghavasimhan Sreenivasan, Paul C. McIntyre, Hyoungsub Kim, and Krishna C. SaraswatHfO2 films were grown by atomic layer deposition using two different precursor chemistriesHfCl4 and tetrakis(diethylamido)hafnium (TDEAH) with H2O as the oxidant. Electrical measurements on capacitor structures fabricated using the films showed a 0.4 V... (Read more)
- 21. Appl. Phys. Lett. 89, 112121 (2006) , “Nature and stability of the (100)Si/LaAlO3 interface probed by paramagnetic defects”, A. Stesmans, K. Clémer, V. V. Afanas'ev, L. F. Edge, and D. G. SchlomElectron spin resonance analysis of (100)Si/LaAlO3 structures reveals the absence of a Si/SiO2-type interface in terms of archetypal Si-dangling bond-type Si/SiO2 interface defects (Pb0,Pb1). With no... (Read more)
- 22. Appl. Phys. Lett. 89, 092120 (2006) , “Defect generation at SiO2/Si interfaces by low pressure chemical vapor deposition of silicon nitride”, Hao Jin, K. J. Weber, and P. J. SmithLow pressure chemical vapor deposition of Si3N4 on oxidized Si (111) surfaces causes a change in the properties of the dominant interface defect, the Pb center, observed by electron paramagnetic resonance. The change in the signature of the... (Read more)
- 23. Appl. Phys. Lett. 89, 092103 (2006) , “Electron energy barriers at interfaces of GaAs(100) with LaAlO3 and Gd2O3”, V. V. Afanas'ev, A. Stesmans, R. Droopad, M.Passlack, L.F. Edge, D. G. SchlomElectron energy barriers at the interfaces of GaAs(100) with Gd2O3 appear to be insensitive to the Fermi level pinning indicating that charges at interface states are of marginal importance for the band alignment at semiconductor/insulator interfaces. The inferred conduction... (Read more)
- 24. Appl. Phys. Lett. 89, 042102 (2006) , “Metal precipitation at grain boundaries in silicon: Dependence on grain boundary character and dislocation decoration”, T. Buonassisi, A. A. Istratov, M. D. Pickett, M. A. Marcus, T. F. Ciszek, and E. R. WeberSynchrotron-based analytical microprobe techniques, electron backscatter diffraction, and defect etching are combined to determine the dependence of metal silicide precipitate formation on grain boundary character and microstructure in multicrystalline silicon (mc-Si). Metal silicide precipitate... (Read more)
- 25. Appl. Phys. Lett. 89, 041916 (2006) , “Photoluminescence evaluation of defects generated during SiGe-on-insulator virtual substrate fabrication: Temperature ramping process”, Dong Wang, Seiichiro Ii, Hiroshi Nakashima, Ken-ichi Ikeda, Hideharu Nakashima, Koji Matsumoto, and Masahiko NakamaeCrystal qualities of Si/SiGe/Si-on-insulator structures with different SiGe thicknesses were evaluated by photoluminescence (PL). The wafers were annealed at different temperatures with a ramping rate of 5 °C/min. Free exciton PL peaks were clearly observed for the as-grown wafers and decreased... (Read more)
- 26. Appl. Phys. Lett. 88, 242110 (2006) , “Electrical characterization of defects introduced during electron beam deposition of Pd Schottky contacts on n-type Ge”, F. D. Auret, W. E. Meyer, S. Coelho, and M. HayesWe have investigated by deep level transient spectroscopy the hole and electron trap defects introduced in n-type Ge during electron beam deposition (EBD) of Pd Schottky contacts. We have also compared the properties of these defects with those introduced in the same material during... (Read more)
- 27. Appl. Phys. Lett. 88, 212112 (2006) , “Reliability of thermally oxidized SiO2/4H-SiC by conductive atomic force microscopy”, Patrick Fiorenza and Vito RaineriThe dielectric breakdown (BD) kinetics of silicon dioxide (SiO2) thin films thermally grown on 4H-SiC was determined by comparison between I-V measurements on large area (up to 1.96×105 cm2) metal-oxide-semiconductor structures and... (Read more)
- 28. Appl. Phys. Lett. 88, 193502 (2006) , “Role of oxygen vacancy in HfO2/SiHfO2/Si(100) interfaces”, D.-Y. Cho, S.-J. Oh, Y. J. Chang, T. W. Noh, R. Jung, J.-C. LeeWe have investigated the interface states in HfO2/SiO2/Si(100) systems that were prepared by using the in situ pulsed laser deposition technique. X-ray photoelectron spectroscopy data revealed that when the HfO2 film thickness exceeds 11 Å, the film... (Read more)
- 29. Appl. Phys. Lett. 88, 153518 (2006) , “Negative bias temperature instability mechanism: The role of molecular hydrogen”, Anand T. Krishnan, Srinivasan Chakravarthi, Paul Nicollian, Vijay Reddy, and Srikanth KrishnanThe role of dimerization of atomic hydrogen to give molecular hydrogen in determining negative bias temperature instability (NBTI) kinetics is explored analytically. The time dependency of NBTI involving molecular hydrogen was found to obey a power law with a slope of 1/6, as opposed to the 1/4... (Read more)
- 30. Appl. Phys. Lett. 88, 153509 (2006) , “Deep energy levels in RuO2/4H–SiC Schottky barrier structures”, L. Stuchlikova, D. Buc, L. Harmatha, U. Helmersson, W. H. Chang, I. BelloRuO2/4HSiC Schottky diode structures based on n-type 4HSiC (7×1017 cm3) with stoichiometric RuO2 Schottky contacts were characterized by electrical capacitance-voltage and current voltage methods and deep-level transient... (Read more)
- 31. Appl. Phys. Lett. 88, 153507 (2006) , “Influence of trap states on dynamic properties of single grain silicon thin film transistors”, F. Yan, P. Migliorato, R. IshiharaThe transient properties of single grainthin film transistors (SG-TFTs) with high electron mobility have been studied. Overshoot current induced by trap states has been observed in most of the devices. A method of ac measurements has been used to investigate the trap processes. Both transient... (Read more)
- 32. Appl. Phys. Lett. 88, 092108 (2006) , “Hydrogen passivation of carbon Pb like centers at the 3C- and 4H-SiC/SiO2 interfaces in oxidized porous SiC”, J. L. Cantin, H. J. von Bardeleben, Yue Ke, R. P. Devaty, W. J. ChoykeThe effect of forming gas and vacuum annealing on the concentration of carbon dangling bond (PbC) centers at 3C- and 4H-SiC/SiO2 interfaces has been studied by electron paramagnetic resonance (EPR) spectroscopy. Our results show efficient passivation at 400 °C and... (Read more)
- 33. Appl. Phys. Lett. 88, 012101 (2006) , “The structure of the SiO2/Si(100) interface from a restraint-free search using computer simulations”, Dominik Fischer, Alessandro Curioni, Salomon Billeter, and Wanda AndreoniThe structure of the interface between SiO2 and Si(100) is investigated using the replica-exchange method driven by classical molecular dynamics simulations based on ab initio-derived interatomic potentials. Abrupt interfaces are shown to be unstable, whereas a substoichiometric... (Read more)
- 34. J. Appl. Phys. 100, 094108 (2006) , “The effect of interfacial layer properties on the performance of Hf-based gate stack devices”, G. Bersuker, C. S. Park, J. Barnett, P. S. Lysaght, P. D. Kirsch, C. D. Young, R. Choi, B. H. Lee, B. Foran, K. van Benthem, S. J. Pennycook, P. M. Lenahan, and J. T. RyanThe influence of Hf-based dielectrics on the underlying SiO2 interfacial layer (IL) in high-k gate stacks is investigated. An increase in the IL dielectric constant, which correlates to an increase of the positive fixed charge density in the IL, is found to depend on the starting,... (Read more)
- 35. J. Appl. Phys. 100, 064501 (2006) , “Introduction of defects into HfO2 gate dielectrics by metal-gate deposition studied using x-ray photoelectron spectroscopy and positron annihilation”, A. Uedono, T. Naito, T. Otsuka, K. Shiraishi, K. Yamabe, S. Miyazaki, H. Watanabe, N. Umezawa, T. Chikyow, Y. Akasaka, S. Kamiyama, Y. Nara, and K. YamadaThe impact of TiN deposition on thin HfO2 films formed on Si substrates was studied using x-ray photoelectron spectroscopy and a monoenergetic positron beam. For the predeposition sample, the positrons implanted into Si were found to diffuse toward the HfO2/Si interface under... (Read more)
- 36. J. Appl. Phys. 100, 044503 (2006) , “Dislocation dynamics in strain relaxation in GaAsSb/GaAs heteroepitaxy”, B. Pérez Rodríguez and J. Mirecki MillunchickThe real-time stress evolution has been investigated during molecular-beam epitaxial growth of GaAs1xSbx/GaAs metamorphic buffer. These real-time data were obtained using an in situ multibeam optical sensor measurement and has been combined with... (Read more)
- 37. J. Appl. Phys. 100, 033901 (2006) , “Spin-dependent transport in diluted-magnetic-semiconductor/semiconductor quantum wires”, Wen Xu and Yong GuoSpin-polarized transport properties have been investigated in diluted-magnetic-semiconductor/semiconductor quantum wires. We stress the effects introduced by the structural configuration and geometric parameters as well as the external magnetic field. It is found that the symmetric quantum wire... (Read more)
- 38. J. Appl. Phys. 100, 024103 (2006) , “Scanning transmission electron microscopy investigations of interfacial layers in HfO2 gate stacks”, Melody P. Agustin, Gennadi Bersuker, Brendan Foran, Lynn A. Boatner, and Susanne StemmerElectron energy-loss spectroscopy combined with high-angle annular dark-field (HAADF) imaging in scanning transmission electron microscopy was used to investigate the chemistry of interfacial layers in HfO2 gate stacks capped with polycrystalline Si gate electrodes. To interpret the... (Read more)
- 39. J. Appl. Phys. 100, 023711 (2006) , “Charge trapping properties at silicon nitride/silicon oxide interface studied by variable-temperature electrostatic force microscopy”, S.-D. Tzeng and S. GwoCharge trapping properties of electrons and holes in ultrathin nitride-oxide-silicon (NOS) structures were quantitatively determined by variable-temperature electrostatic force microscopy (EFM). From charge retention characteristics obtained at temperatures between 250 and 370 °C and assuming... (Read more)
- 40. J. Appl. Phys. 100, 023512 (2006) , “Stacking faults and twin boundaries in fcc crystals determined by x-ray diffraction profile analysis”, Levente Balogh, Gábor Ribárik, and Tamás UngárA systematic procedure is developed to evaluate the density of planar defects together with dislocations and crystallite or subgrain size by x-ray line profile analysis in fcc crystals. Powder diffraction patterns are numerically calculated by using the DIFFAX software for intrinsic and extrinsic... (Read more)
- 41. J. Appl. Phys. 99, 103507 (2006) , “Nonconservative Ostwald ripening of a dislocation loop layer under inert nitrogen-rich SiO2/Si interfaces”, D. Skarlatos, P. Tsouroutas, V. Em. Vamvakas, and C. TsamisIn this work we perform a systematic study of the dissolution of a dislocation loop layer under the influence of inert SiO2/Si and nitrogen-rich SiO2/Si interfaces. The composition of the dislocation loop layer was just after its formation 10%20% Frank dislocation loops... (Read more)
- 42. Microelectron. Reliability 46, 1 (2006) , “NBTI degradation: From physical mechanisms to modelling”,An overview of the evolution of transistor parameters under negative bias temperature instability stress conditions commonly observed in p-MOSFETs in recent technologies is presented. The physical mechanisms of the degradation as well as the different defects involved have been discussed according to a systematic set of experiments with different stress conditions. According to our findings, a physical model is proposed which could be used to more accurately predict the transistor degradation. Finally, based on our new present understanding, a new characterization methodology is proposed, which would open the way to a more accurate determination of parameter shifts and thus allowing implementing the degradation into design rules. (Read more)
- 43. Phys. Rev. B 74, 184108 (2006) , “Interpreting Mössbauer spectra reflecting an infinite number of sites: An application to Fe1−xSi synthesized by pulsed laser annealing”, A. Falepin, S. Cottenier, C. M. Comrie, and A. VantommeWe present a study on the interpretation of conversion electron Mössbauer spectra reflecting an infinite number of sites, in casu Mössbauer spectroscopy on Fe1−xSi layers on Si, synthesized by pulsed laser annealing. These spectra display a broad... (Read more)
- 44. Phys. Rev. B 74, 035309 (2006) , “Structure of the interface between ultrathin SiO2 films and 4H-SiC(0001)”, Mark Schürmann, Stefan Dreiner, Ulf Berges, and Carsten WestphalThe interface between ultrathin SiO2 films and 4H-SiC(0001) has been studied by x-ray photoelectron spectroscopy (XPS) and photoelectron diffraction. The investigation was performed for two different films. An ordered silicate layer showed a clear (×)R30°... (Read more)
- 45. Phys. Rev. B 74, 035112 (2006) , “Charge localization or itineracy at LaAlO3/SrTiO3 interfaces: Hole polarons, oxygen vacancies, and mobile electrons”, R. Pentcheva and W. E. PickettWhile correlated electron behavior is to be expected at oxide interfaces (IFs) involving Mott insulators, we show how strong correlations in the oxygen 2p states may be necessary to account for observed insulating behavior at charged (001)-IFs between the band insulators LaAlO3 and... (Read more)
- 46. Phys. Rev. B 74, 033309 (2006) , “Effect of the triplet state on the random telegraph signal in Si n-MOSFETs”, Enrico Prati, Marco Fanciulli, Giorgio Ferrari, and Marco SampietroWe report on the static magnetic field dependence of the random telegraph signal in a submicrometer silicon n-metal-oxide-semiconductor field-effect transistor. Using intense magnetic fields and low temperatures, we find that the characteristic time ratio changes by three orders of magnitude... (Read more)
- 47. Phys. Rev. B 73, 073302 (2006) , “Origin of Pb1 center at SiO2/Si(100) interface: First-principles calculations”, K. Kato, T. Yamasaki, T. UdaBased on first-principles calculations, we studied the generation behavior of Pb centers at SiO2/Si interfaces, especially for Pb1 centers, under oxidation of Si(100) surfaces. Pb1 centers were found to be formed... (Read more)
- 48. Phys. Rev. B 73, 014111 (2006) , “Structure of SiO2/4H-SiC interface probed by positron annihilation spectroscopy”, M. Maekawa, A. Kawasuso, M. Yoshikawa, A. Miyashita, R. Suzuki, T. OhdairaThe structure of the SiO2/4H-SiC interface produced by dry oxidation has been studied using positron annihilation spectroscopy using energy-variable slow positron beams. Based on the Doppler broadening shape and wing parameter (S-W) correlation, the interface layer was... (Read more)
- 49. Phys. Rev. Lett. 97, 116101 (2006) , “Oxygen Migration, Agglomeration, and Trapping: Key Factors for the Morphology of the Si-SiO2 Interface”, L. Tsetseris and S. T. PantelidesThe measured activation energies for oxide growth rates at the initial and late stages of oxidation of Si are 2 and 1.2 eV, respectively. These values imply that oxidation can proceed at temperatures much smaller than the 800 °C normally used to obtain devices with exceptionally smooth... (Read more)
- 50. Phys. Rev. Lett. 97, 016102 (2006) , “Scaling and Universality of Roughening in Thermal Oxidation of Si(001)”, Hiroo Omi, Hiroyuki Kageshima, and Masashi UematsuBy analyzing atomic force microscopy images, we derive a continuum equation that quantitatively explains the roughening at the Si(001)-SiO2 interface during thermal oxidation at the temperature at 1200 °C in an Ar atmosphere containing a small fraction of O2. We also show... (Read more)
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