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- 1. Appl. Phys. Lett. 93, 113504 (2008) , “Voltage polarity dependent low-power and high-speed resistance switching in CoO resistance random access memory with Ta electrode”, Hisashi Shima, Fumiyoshi Takano, Hidenobu Muramatsu, Hiro Akinaga, Yukio Tamai, Isao H. Inque, and Hidenori Takagi,Structural and resistance switching properties were investigated in the CoO resistance random access memory (RRAM) with the Ta electrode. The intermediate layer consisting of Co and Ta oxides was confirmed at the interface by the transmission electron microscopy and electron energy loss... (Read more)
- 2. Appl. Phys. Lett. 93, 072102 (2008) , AIP , “Broadband electrically detected magnetic resonance of phosphorus donors in a silicon field-effect transistor”, L. H. Willems van Beveren, H. Huebl, D. R. McCamey, T. Duty, A. J. Ferguson, R. G. Clark, and M. S. BrandtWe report electrically detected magnetic resonance of phosphorus donors in a silicon field-effect transistor. An on-chip transmission line is used to generate the oscillating magnetic field allowing broadband operation. At millikelvin temperatures, continuous wave spectra were obtained up to 40 ... (Read more)
- 3. 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)
- 4. 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)
- 5. 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)
- 6. 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)
- 7. Appl. Phys. Lett. 90, 052901 (2007) , “Process-dependent defects in Si/HfO2/Mo gate oxide heterostructures”, S. Walsh, L. Fang, J. K. Schaeffer, E. Weisbrod, and L. J. BrillsonThe authors have used low energy electron-excited nanoscale-depth-resolved spectroscopy to probe the bulk and interface defect states of ultrathin Mo/HfO2/Si with conventional process sequences. Multiple deep level emissions are evident below the 5.9 eV HfO2 near band edge,... (Read more)
- 8. Phys. Rev. Lett. 98, 146403 (2007) , “Evidence for an Oxygen Diffusion Model for the Electric Pulse Induced Resistance Change Effect in Transition-Metal Oxides”, Y. B. Nian, J. Strozier, N. J. Wu, X. Chen, and A. IgnatievElectric-pulse induced resistance hysteresis switching loops for Pr0.7Ca0.3MnO3 perovskite oxide films were found to exhibit an additional sharp “shuttle tail” peak around the negative pulse maximum for films deposited in an oxygen-deficient ambient. The... (Read more)
- 9. Phys. Rev. Lett. 98, 096805 (2007) , “Observation of the Linear Stark Effect in a Single Acceptor in Si”, L. E. Calvet, R. G. Wheeler, and M. A. ReedThe Stark splitting of a single fourfold degenerate impurity located within the built-in potential of a metal-semiconductor contact is investigated using low temperature transport measurements. A model is developed and used to analyze transport as a function of temperature, bias voltage, and... (Read more)
- 10. Phys. Rev. Lett. 98, 026802 (2007) , “Microscopic Basis for the Mechanism of Carrier Dynamics in an Operating p-n Junction Examined by Using Light-Modulated Scanning Tunneling Spectroscopy”, Shoji Yoshida, Yuya Kanitani, Ryuji Oshima, Yoshitaka Okada, Osamu Takeuchi, and Hidemi ShigekawaThe doping characteristics and carrier transport in a GaAs p-n junction were visualized with a ~10 nm spatial resolution, using light-modulated scanning tunneling spectroscopy. The dynamics of minority carriers under operating conditions, such as recombination, diffusion, and electric... (Read more)
- 11. Appl. Phys. Lett. 89, 223502 (2006) , “Identification of trapping defects in 4H-silicon carbide metal-insulator-semiconductor field-effect transistors by electrically detected magnetic resonance”, Morgen S. Dautrich, Patrick M. Lenahan, and Aivars J. LelisIn conventional Si/SiO2-based metal oxide semiconductor devices, performance-limiting semiconductor/dielectric interface traps are localized precisely at the Si/SiO2 boundary. The authors show that in high-quality SiC/SiO2-based devices, this is not necessarily the... (Read more)
- 12. 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)
- 13. Appl. Phys. Lett. 89, 143505 (2006) , “Probing deep level centers in GaN epilayers with variable-frequency capacitance-voltage characteristics of Au/GaN Schottky contacts”, R. X. Wang, S. J. Xu, S. L. Shi, C. D. Beling, S. Fung, D. G. Zhao, H. Yang, and X. M. TaoUnder identical preparation conditions, Au/GaN Schottky contacts were prepared on two kinds of GaN epilayers with significantly different background electron concentrations and mobility as well as yellow emission intensities. Current-voltage (I-V) and variable-frequency... (Read more)
- 14. Appl. Phys. Lett. 89, 143120 (2006) , “Electroluminescence mapping of CuGaSe2 solar cells by atomic force microscopy”, Manuel J. Romero, C.-S. Jiang, J. Abushama, H. R. Moutinho, M. M. Al-Jassim, and R. NoufiThe authors report on the observation of electroluminescence (EL) in CuGaSe2 solar cells using tapping-mode atomic force microscopy based on tuning-fork sensors. Individually injected current pulses are seen during intermittent contact driven by an external bias applied to the conducting... (Read more)
- 15. 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)
- 16. Appl. Phys. Lett. 89, 112107 (2006) , “Determination of the concentration of recombination centers in thin asymmetrical p-n junctions from capacitance transient spectroscopy”, Juan A. Jiménez Tejada, Pablo Lara Bullejos, Juan A. López Villanueva, Francisco M. Gómez-Campos, Salvador Rodríguez-Bolívar, and M. Jamal DeenRecombination centers in thin asymmetrical p-n junctions were analyzed in the context of capacitance transient experiments. The combined effect of the thin low-doped region of the junction and the nonzero value of the occupation factor of the recombination center in the depletion layer... (Read more)
- 17. Appl. Phys. Lett. 89, 103519 (2006) , “Observation of a multilayer planar in-grown stacking fault in 4H-SiC p-i-n diodes”, Joshua D. Caldwell, P. B. Klein, Mark E. Twigg, Robert E. Stahlbush, Orest J. Glembocki, Kendrick X. Liu, Karl D. Hobart, and Fritz KubIn-grown stacking faults (IGSFs) are planar defects that do not propagate under either an applied optical or electrical bias; however, their effect upon the electrical characteristics of diodes is not well understood. We present evidence for a multilayered IGSF and discuss its electrical and optical... (Read more)
- 18. Appl. Phys. Lett. 89, 101111 (2006) , “Investigation of dark line defects induced by catastrophic optical damage in broad-area AlGaInP laser diodes”, M. Bou Sanayeh, A. Jaeger, W. Schmid, S. Tautz, P. Brick, K. Streubel, and G. BacherThe authors present a detailed investigation of defects generated during catastrophic optical damage (COD) in high-power 650 nm AlGaInP lasers using microphotoluminescence (µ-PL) mapping, focused ion beam (FIB) microscopy, and deep-etching techniques. High-resolution µ-PL... (Read more)
- 19. Appl. Phys. Lett. 89, 092902 (2006) , “Charge trapping in nitrided HfSiO gate dielectric layers”, G. Vellianitis, Z. M. Rittersma, and J. PétryThe effects of HfSiO nitridation on charge trapping and long-term dielectric reliability are investigated. A comparison between decoupled plasma nitridation, annealing in NH3, and no nitridation is made. It was found that thinner HfSiO layers show less trapped charge. Decoupled plasma... (Read more)
- 20. Appl. Phys. Lett. 89, 013508 (2006) , “Carrier trap passivation in multicrystalline Si solar cells by hydrogen from SiNx:H layers”, H. F. W. Dekkers, L. Carnel, and G. BeaucarneHydrogenation by high temperature rapid annealing of SiNx:H is found to be very effective on the defects responsible for the carrier trapping effect in multicrystalline silicon. The passivation effect is reversible and is annihilated by a long thermal annealing. As for the... (Read more)
- 21. Appl. Phys. Lett. 88, 253504 (2006) , “Single silicon vacancy-oxygen complex defect and variable retention time phenomenon in dynamic random access memories”, T. Umeda, K. Okonogi, K. Ohyu, S. Tsukada, K. Hamada, S. Fujieda, and Y. MochizukiThe variable retention time phenomenon has recently been highlighted as an important issue in dynamic random access memory (DRAM) technology. Based on electrically detected magnetic resonance and simulation studies, we suggest that a single Si vacancy-oxygen complex defect is responsible for this... (Read more)
- 22. 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)
- 23. Appl. Phys. Lett. 88, 183506 (2006) , “Deep level transient spectroscopy study of nickel-germanide Schottky barriers on n-type germanium”, E. Simoen, K. Opsomer, C. Claeys, K. Maex, C. Detavernier, R. L. Van Meirhaeghe, S. Forment, and P. ClauwsNickel-germanide Schottky barriers have been made on n-type germanium and evaluated by deep level transient spectroscopy in order to detect possible metal indiffusion during the 30 s rapid thermal annealing (RTA) employed for the germanidation. It is shown that while no electron traps have... (Read more)
- 24. Appl. Phys. Lett. 88, 182103 (2006) , “Observation of minority-carrier traps in InGaN/GaN multiple-quantum-well light-emitting diodes during deep-level transient spectroscopy measurements”, J. W. Kim, G. H. Song, J. W. LeeAn unusual appearance of a peak in the deep-level transient spectroscopy (DLTS) data for minority-carrier traps from an InGaN/GaN multiple-quantum-well (MQW) light-emitting diode, under a bias condition provided by a square pulse of varying height superimposed over the reverse-bias voltage, is newly... (Read more)
- 25. Appl. Phys. Lett. 88, 162107 (2006) , “Physical origin of threshold voltage problems in polycrystalline silicon/HfO2 gate stacks”, Dae Yeon Kim, Joongoo Kang, and K. J. ChangBased on theoretical calculations, we find that at p+ polycrystalline silicon (poly-Si)/HfO2 gates, Si interstitials are easily migrated from the electrode, forming HfSi bonds with a charge transfer to the electrode, and the resulting interface dipole raises the Fermi level... (Read more)
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