Publications

Found 496 results
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2010
Law, JJM., ET. Yu, G. Koblmüller, F. Wu, and JS. Speck, "Low defect-mediated reverse-bias leakage in (0001) GaN via high-temperature molecular beam epitaxy", Applied Physics Letters, vol. 96, no. 10: AIP, pp. 102111, 2010.
Farrell, RM., PS. Hsu, DA. Haeger, K. Fujito, SP. DenBaars, JS. Speck, and S. Nakamura, "Low-threshold-current-density AlGaN-cladding-free m-plane InGaN/GaN laser diodes", Applied Physics Letters, vol. 96, no. 23: AIP, pp. 231113, 2010.
Schley, P., J. Räthel, E. Sakalauskas, G. Gobsch, M. Wieneke, J. Bläsing, A. Krost, G. Koblmüller, JS. Speck, and RDAM. Goldhahn, "Optical anisotropy of A-and M-plane InN grown on free-standing GaN substrates", physica status solidi (a), vol. 207, no. 5: Wiley Online Library, pp. 1062–1065, 2010.
Shen, H., GA. Garrett, M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Polarization field crossover in semi-polar InGaN/GaN single quantum wells", physica status solidi (c), vol. 7, no. 10: Wiley Online Library, pp. 2378–2381, 2010.
Keller, S., Y. Dora, F. Wu, X. Chen, S. Chowdury, SP. DenBaars, JS. Speck, and UK. Mishra, "Properties of N-polar GaN films and AlGaN/GaN heterostructures grown on (111) silicon by metal organic chemical vapor deposition", Applied Physics Letters, vol. 97, no. 14: AIP, pp. 142109, 2010.
Dasgupta, S., A. Raman, JS. Speck, U. K. Mishra, and others, "Room temperature operation and DC characteristics of InAlN/GaN/AlGaN Hot Electron Transistors with common base transfer ratio, α= 0.97", Device Research Conference (DRC), 2010: IEEE, pp. 133–134, 2010.
Linhart, WM., TD. Veal, PDC. King, G. Koblmüller, CS. Gallinat, JS. Speck, and CF. McConville, "Surface, bulk, and interface electronic properties of nonpolar InN", Applied Physics Letters, vol. 97, no. 11: AIP, pp. 112103, 2010.
Dasgupta, S., DF. Nidhi, TE. Mates, S. Keller, JS. Speck, and UK. Mishra, "Ultra-low ohmic contacts to N-polar GaN HEMTs by In (Ga) N based source-drain regrowth by Plasma MBE", Proceedings of CS MANTECH Conference. Oregon, USA, pp. 111–114, 2010.
2009
Koehl, WF., MH. Wong, C. Poblenz, B. Swenson, UK. Mishra, JS. Speck, and DD. Awschalom, "Current-induced spin polarization in gallium nitride", Applied Physics Letters, vol. 95, no. 7: AIP, pp. 072110, 2009.
Shen, H., M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Determination of polarization field in a semipolar (11 2\= 2) In Ga/ Ga N single quantum well using Franz–Keldysh oscillations in electroreflectance", Applied Physics Letters, vol. 94, no. 24: AIP, pp. 241906, 2009.
Bierwagen, O., T. Nagata, T. Ive, CG. Van de Walle, and JS. Speck, "Dissipation-factor-based criterion for the validity of carrier-type identification by capacitance-voltage measurements", Applied Physics Letters, vol. 94, no. 15: AIP, pp. 152110, 2009.
White, ME., O. Bierwagen, MY. Tsai, and JS. Speck, "Electron transport properties of antimony doped Sn O 2 single crystalline thin films grown by plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 106, no. 9: AIP, pp. 093704, 2009.
Akopian, N., A. Vardi, G. Bahir, V. Garber, E. Ehrenfreund, D. Gershoni, C. Poblenz, CR. Elsass, IP. Smorchkova, and JS. Speck, "Fermi edge singularity observed in GaN/AlGaN heterointerfaces", Applied Physics Letters, vol. 94, no. 22: AIP, pp. 223502, 2009.
Scarpulla, M. A., CS. Gallinat, S. Mack, JS. Speck, and AC. Gossard, "GdN (1 1 1) heteroepitaxy on GaN (0 0 0 1) by N2 plasma and NH3 molecular beam epitaxy", Journal of Crystal Growth, vol. 311, no. 5: North-Holland, pp. 1239–1244, 2009.
Dasgupta, S., F. Wu, JS. Speck, and UK. Mishra, "Growth of high quality N-polar AlN (000 1) on Si (111) by plasma assisted molecular beam epitaxy", Applied Physics Letters, vol. 94, no. 15: AIP, pp. 151906, 2009.
Navarro, A., C. Rivera, J. Pereiro, E. Munoz, B. Imer, SP. DenBaars, and JS. Speck, "High responsivity A-plane GaN-based metal-semiconductor-metal photodetectors for polarization-sensitive applications", Applied Physics Letters, vol. 94, no. 21: AIP, pp. 213512, 2009.
Koblmüller, G., GD. Metcalfe, M. Wraback, F. Wu, CS. Gallinat, and JS. Speck, "In adlayer mediated molecular beam epitaxial growth and properties of a-plane InN on freestanding GaN", Applied Physics Letters, vol. 94, no. 9: AIP, pp. 091905, 2009.
Metcalfe, GD., M. Wraback, F. Wu, CS. Gallinat, JS. Speck, and others, "In adlayer mediated molecular beam epitaxial growth and properties of a-plane InN on freestanding GaN", Applied Physics Letters, vol. 94, no. 9: American Institute of Physics, pp. 091905–091905, 2009.
Tsai, MY., ME. White, and JS. Speck, "Investigation of (110) Sn O 2 growth mechanisms on Ti O 2 substrates by plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 106, no. 2: AIP, pp. 024911, 2009.
Speck, JS., and SF. Chichibu, "Nonpolar and semipolar group III nitride-based materials", MRS bulletin, vol. 34, no. 5: Cambridge University Press, pp. 304–312, 2009.
Shen, H., M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Unambiguous evidence of the existence of polarization field crossover in a semipolar InGaN/GaN single quantum well", Applied Physics Letters, vol. 95, no. 3: AIP, pp. 033503, 2009.

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