Publications

Found 496 results
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Filters: Author is Speck, JS  [Clear All Filters]
2005
Rajan, S., M. Wong, Y. Fu, F. Wu, JS. Speck, and UK. Mishra, "Growth and electrical characterization of N-face AlGaN/GaN heterostructures", Japanese journal of applied physics, vol. 44, no. 11L: IOP Publishing, pp. L1478, 2005.
Palacios, T., A. Chakraborty, S. Rajan, C. Poblenz, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "High-power AlGaN/GaN HEMTs for Ka-band applications", IEEE Electron Device Letters, vol. 26, no. 11: IEEE, pp. 781–783, 2005.
Armstrong, A., AR. Arehart, D. Green, UK. Mishra, JS. Speck, and SA. Ringel, "Impact of deep levels on the electrical conductivity and luminescence of gallium nitride codoped with carbon and silicon", Journal of Applied physics, vol. 98, no. 5: AIP, pp. 053704, 2005.
Garrett, GA., H. Shen, M. Wraback, B. Imer, B. Haskell, JS. Speck, S. Keller, S. Nakamura, and SP. DenBaars, "Intensity dependent time-resolved photoluminescence studies of GaN/AlGaN multiple quantum wells of varying well width on laterally overgrown a-plane and planar c-plane GaN", physica status solidi (a), vol. 202, no. 5: Wiley Online Library, pp. 846–849, 2005.
Chichibu, SF., A. Uedono, T. Onuma, T. Sota, BA. Haskell, SP. DenBaars, JS. Speck, and S. Nakamura, "Limiting factors of room-temperature nonradiative photoluminescence lifetime in polar and nonpolar GaN studied by time-resolved photoluminescence and slow positron annihilation techniques", Applied Physics Letters, vol. 86, no. 2: AIP, pp. 021914, 2005.
Hansen, P. J., Y. Terao, Y. Wu, R. A. York, U. K. Mishra, and JS. Speck, "LiNbO 3 thin film growth on (0001)-GaN", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 1: AVS, pp. 162–167, 2005.
Onuma, T., A. Chakraborty, BA. Haskell, S. Keller, SP. DenBaars, JS. Speck, S. Nakamura, UK. Mishra, T. Sota, and SF. Chichibu, "Localized exciton dynamics in nonpolar (11 2\= 0) In x Ga 1- x N multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth", Applied Physics Letters, vol. 86, no. 15: AIP, pp. 151918, 2005.
Farag, N., M. Bobeth, W. Pompe, AE. Romanov, and JS. Speck, "Modeling of twinning in epitaxial (001)-oriented La 0.67 Sr 0.33 MnO 3 thin films", Journal of applied physics, vol. 97, no. 11: AIP, pp. 113516, 2005.
McLaurin, M., TE. Mates, and JS. Speck, "Molecular-beam epitaxy of p-type m-plane GaN", Applied Physics Letters, vol. 86, no. 26: AIP, pp. 262104, 2005.
Armstrong, A., A. Arehart, D. Green, JS. Speck, UK. Mishra, and SA. Ringel, "A novel method to investigate defect states in MBE grown highly resistive GaN doped with C and Si", physica status solidi (c), vol. 2, no. 7: Wiley Online Library, pp. 2411–2414, 2005.
Akopian, N., G. Bahir, D. Gershoni, MD. Craven, JS. Speck, and SP. DenBaars, "Optical evidence for lack of polarization in (11 2\= 0) oriented GaN/(AlGa) N quantum structures", Applied Physics Letters, vol. 86, no. 20: AIP, pp. 202104, 2005.
Yu, H., L. McCarthy, H. Xing, P. Waltereit, L. Shen, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "Publisherís Note:ìDopant activation and ultralow resistance ohmic contacts to Si-ion-implanted GaN using pressurized rapid thermal annealingî[Appl. Phys. Lett. 85, 5254 (2004)]", Applied Physics Letters, vol. 86, no. 5: AIP, pp. 5254, 2005.
Koblmüller, G., J. Brown, R. Averbeck, H. Riechert, P. Pongratz, P. M. Petroff, and JS. Speck, "Quantification of Ga surface coverages and their desorption kinetics on GaN (0001) and (000-1) surfaces", physica status solidi (c), vol. 2, no. 7: Wiley Online Library, pp. 2178–2182, 2005.
Chichibu, SF., T. Koida, MD. Craven, BA. Haskell, T. Onuma, T. Sota, JS. Speck, SP. DenBaars, and S. Nakamura, "Reduction of bound-state and nonradiative defect densities in nonpolar (11&2macr; 0) AlGaN/GaN quantum wells by the use of lateral epitaxial overgrowth technique", physica status solidi (c), vol. 2, no. 7: WILEY-VCH Verlag, pp. 2700–2703, 2005.
Farag, N., M. Bobeth, W. Pompe, AE. Romanov, and JS. Speck, "Rhombohedral LSMO films–a unique case of ferroelastic domain formation", physica status solidi (a), vol. 202, no. 4: WILEY-VCH Verlag, 2005.
Cantu, P., F. Wu, P. Waltereit, S. Keller, AE. Romanov, SP. DenBaars, and JS. Speck, "Role of inclined threading dislocations in stress relaxation in mismatched layers", Journal of applied physics, vol. 97, no. 10: AIP, pp. 103534, 2005.
Hansen, PJ., V. Vaithyanathan, Y. Wu, T. Mates, S. Heikman, UK. Mishra, RA. York, DG. Schlom, and JS. Speck, "Rutile films grown by molecular beam epitaxy on GaN and Al Ga N/ Ga N", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 2: AVS, pp. 499–506, 2005.
Rudin, S., GA. Garrett, H. Shen, M. Wraback, B. Imer, B. Haskell, JS. Speck, S. Keller, S. Nakamura, and SP. DenBaars, "Temperature-dependent Radiative Lifetimes of Excitons in Non-polar GaN/AlGaN Quantum Wells", Semiconductor Device Research Symposium, 2005 International: IEEE, pp. 225–226, 2005.
Grundmann, MJ., JS. Speck, and UK. Mishra, "Tunnel junctions in GaN/AlN for optoelectronic applications", Device Research Conference Digest, 2005. DRC'05. 63rd, vol. 1: IEEE, pp. 23–24, 2005.
Poblenz, C., P. Waltereit, and JS. Speck, "Uniformity and control of surface morphology during growth of GaN by molecular beam epitaxy", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 4: AVS, pp. 1379–1385, 2005.
2004
Zhang, H., EJ. Miller, ET. Yu, C. Poblenz, and JS. Speck, "Analysis of interface electronic structure in In x Ga 1- x N/GaN heterostructures", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 4: AVS, pp. 2169–2174, 2004.
Miller, EJ., ET. Yu, P. Waltereit, and JS. Speck, "Analysis of reverse-bias leakage current mechanisms in GaN grown by molecular-beam epitaxy", Applied physics letters, vol. 84, no. 4: AIP, pp. 535–537, 2004.
Waltereit, P., H. Sato, C. Poblenz, DS. Green, JS. Brown, M. McLaurin, T. Katona, SP. DenBaars, JS. Speck, J-H. Liang, et al., "Blue GaN-based light-emitting diodes grown by molecular-beam epitaxy with external quantum efficiency greater than 1.5%", Applied physics letters, vol. 84, no. 15: AIP, pp. 2748–2750, 2004.
Green, DS., UK. Mishra, and JS. Speck, "Carbon doping of GaN with CBr 4 in radio-frequency plasma-assisted molecular beam epitaxy", Journal of applied physics, vol. 95, no. 12: AIP, pp. 8456–8462, 2004.
Armstrong, A., D. Green, AR. Arehart, UK. Mishra, JS. Speck, and SA. Ringel, "Carbon-related Deep States in Compensated n-type and Semi-Insulating GaN: C and their Influence on Yellow Luminescence", MRS Online Proceedings Library Archive, vol. 831: Cambridge University Press, 2004.

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