Publications

Found 301 results
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2006
Barabash, RI., G. E. Ice, W. Liu, C. Roder, S. Figge, S. Einfeldt, D. Hommel, TM. Katona, JS. Speck, SP. DenBaars, et al., "Mapping misorientation and crystallographic tilt in GaN layers via polychromatic microdiffraction", physica status solidi (b), vol. 243, no. 7: Wiley Online Library, pp. 1508–1513, 2006.
Recht, F., L. McCarthy, S. Rajan, A. Chakraborty, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "Nonalloyed ohmic contacts in AlGaN/GaN HEMTs by ion implantation with reduced activation annealing temperature", IEEE electron device letters, vol. 27, no. 4: IEEE, pp. 205–207, 2006.
Recht, F., L. McCarthy, S. Rajan, A. Chakraborty, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "Nonalloyed ohmic contacts in AlGaN/GaN HEMTs by ion implantation with reduced activation annealing temperature", IEEE electron device letters, vol. 27, no. 4: IEEE, pp. 205–207, 2006.
Recht, F., L. McCarthy, S. Rajan, A. Chakraborty, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "Nonalloyed ohmic contacts in AlGaN/GaN HEMTs by ion implantation with reduced activation", Info: Postprints, UC Santa Barbara, 2006.
Recht, F., L. McCarthy, S. Rajan, A. Chakraborty, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "Nonalloyed ohmic contacts in AlGaN/GaN HEMTs by ion implantation with reduced activation", Info: Postprints, UC Santa Barbara, 2006.
Koblmüller, G., CS. Gallinat, S. Bernardis, JS. Speck, GD. Chern, ED. Readinger, H. Shen, and M. Wraback, "Optimization of the surface and structural quality of N-face InN grown by molecular beam epitaxy", Applied physics letters, vol. 89, no. 7: AIP, pp. 071902, 2006.
Brown, J. S., G. Koblmüller, R. Averbeck, H. Riechert, and J. S. Speck, "Quadrupole mass spectrometry desorption analysis of Ga adsorbate on AlN (0001)", Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, vol. 24, no. 6: AVS, pp. 1979–1984, 2006.
Armstrong, A., A. Chakraborty, JS. Speck, SP. DenBaars, UK. Mishra, and SA. Ringel, "Quantitative observation and discrimination of AlGaN-and GaN-related deep levels in Al Ga N/ Ga N heterostructures using capacitance deep level optical spectroscopy", Applied physics letters, vol. 89, no. 26: AIP, pp. 262116, 2006.
Corrion, A., C. Poblenz, P. Waltereit, T. Palacios, S. Rajan, U. K. Mishra, and J. S. Speck, "Review of recent developments in growth of AlGaN/GaN high-electron mobility transistors on 4H-SiC by plasma-assisted molecular beam epitaxy", IEICE transactions on electronics, vol. 89, no. 7: The Institute of Electronics, Information and Communication Engineers, pp. 906–912, 2006.
Corrion, A., C. Poblenz, P. Waltereit, T. Palacios, S. Rajan, U. K. Mishra, and J. S. Speck, "Special Section on Heterostructure Microelectronics with TWHM2005-GaN-Based Devices-Review of Recent Developments in Growth of AlGaN/GaN High-Electron Mobility Transistors on 4H-SiC by", IEICE Transactions on Electronics, vol. 89, no. 7: Tokyo, Japan: Institute of Electronics, Information and Communication Engineers, c1992-, pp. 906–912, 2006.
Roder, C., S. Einfeldt, S. Figge, D. Hommel, T. Paskova, B. Monemar, BA. Haskell, PT. Fini, JS. Speck, and S. Nakamura, "Strain in a-plane GaN layers grown on r-plane sapphire substrates", physica status solidi (a), vol. 203, no. 7: Wiley Online Library, pp. 1672–1675, 2006.
Romanov, AE., TJ. Baker, S. Nakamura, JS. Speck, and ERATO/JST. U. C. S. B. Group, "Strain-induced polarization in wurtzite III-nitride semipolar layers", Journal of Applied Physics, vol. 100, no. 2: AIP, pp. 023522, 2006.
2007
Recht, F., L. McCarthy, L. Shen, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "AlGaN/GaN HEMTs with large angle implanted nonalloyed ohmic contacts", Device Research Conference, 2007 65th Annual: IEEE, pp. 37–38, 2007.
Pei, Y., C. Suh, R. Chu, F. Recht, L. Shen, A. Corrion, C. Poblenz, J. Speck, and UK. Mishra, "AlGaN/GaNHEMT with High PAE and Breakdown Voltage Grown by Ammonia MBE", Device Research Conference, 2007 65th Annual: IEEE, pp. 129–130, 2007.
Armstrong, A., A. Chakraborty, J. S. Speck, S. P. DenBaars, U. K. Mishra, and S. A. Ringel, "Characterization and Discrimination of AlGaN-and GaN-related Deep Levels in AlGaN/GaN Heterostructures", AIP Conference Proceedings, vol. 893, no. 1: AIP, pp. 223–224, 2007.
Armstrong, A., C. Poblenz, UK. Mishra, JS. Speck, and SA. Ringel, "Comparison of deep level spectra in p-type and n-type GaN grown by molecular beam epitaxy", physica status solidi (b), vol. 244, no. 6: Wiley Online Library, pp. 1867–1871, 2007.
Armstrong, A., A. Corrion, C. Poblenz, UK. Mishra, JS. Speck, and SA. Ringel, "Comparison of deep level spectra in p-type and n-type GaN grown by molecular beam epitaxy [phys. stat. sol.(b) 244, No. 6, 1867–1871 (2007)]", physica status solidi (b), vol. 244, no. 12: Wiley Online Library, pp. 4692–4692, 2007.
Romanov, A. E., G. E. Beltz, and J. S. Speck, "Crack formation in surface layers with strain gradients", International Journal of Materials Research, vol. 98, no. 8: Carl Hanser Verlag, pp. 723–728, 2007.
Chern, G. D., E. D. Readinger, H. Shen, M. Wraback, C. S. Gallinat, G. Koblmüller, and J. S. Speck, "Excitation Wavelength Dependence Of Terahertz Emission From Indium Nitride Thin Films", AIP Conference Proceedings, vol. 893, no. 1: AIP, pp. 513–514, 2007.
Keller, S., NA. Fichtenbaum, F. Wu, D. Brown, A. Rosales, SP. DenBaars, JS. Speck, and UK. Mishra, "Influence of the substrate misorientation on the properties of N-polar GaN films grown by metal organic chemical vapor deposition", Journal of Applied Physics, vol. 102, no. 8: AIP, pp. 083546, 2007.
Giri, N. Kumar, A. Kumar Singh, SB. Rai, J-Y. Kim, S. Cho, S-J. Lim, J. Yoo, G. Bum Kim, K-S. Kim, J. Lee, et al., "LASERS, OPTICS, AND OPTOELECTRONICS", J. Appl. Phys, vol. 101, no. 3, 2007.
Kröger, R., T. Paskova, A. Rosenauer, D. Hommel, B. Monemar, P. Fini, B. Haskell, J. Speck, and S. Nakamura, "On the Mechanism of Dislocation and Stacking Fault Formation in a-plane GaN Films Grown by Hydride Vapor Phase Epitaxy", AIP Conference Proceedings, vol. 893, no. 1: AIP, pp. 341–342, 2007.
Wong, M. Hoi, S. Rajan, RM. Chu, T. Palacios, C-S. Suh, L. S. McCarthy, S. Keller, J. S. Speck, and U. K. Mishra, "N-face high electron mobility transistors with a GaN-spacer", physica status solidi (a), vol. 204, no. 6: Wiley Online Library, pp. 2049–2053, 2007.
Rajan, S., A. Chini, M. Hoi Wong, J. S. Speck, and U. K. Mishra, "N-polar Ga N/ Al Ga N/ Ga N high electron mobility transistors", Journal of Applied Physics, vol. 102, no. 4: AIP, pp. 044501, 2007.
Rajan, S., E. Hsieh, M. Hoi Wong, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "N-polar GaN Electronics", Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on: IEEE, pp. 368–368, 2007.

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