Publications
] , "Realization of high tunability barium strontium titanate thin films by rf magnetron sputtering", Applied Physics Letters, vol. 75, no. 20: AIP, pp. 3186–3188, 1999.
, "Real-time X-ray scattering studies of surface structure during metalorganic chemical vapor deposition of GaN", MRS Bulletin, vol. 24, no. 1: Cambridge University Press, pp. 21–25, 1999.
, "The role of threading dislocations in the physical properties of GaN and its alloys", Physica B: Condensed Matter, vol. 273: Elsevier, pp. 24–32, 1999.
, "Strain relaxation in InxGa1-xAs lattice engineered substrates", Journal of Electronic Materials, vol. 28, no. 7: The Metals, Minerals, and Materials Society, pp. 1050–1051, 1999.
, "Strain relaxation of In x Ga 1- x As during lateral oxidation of underlying AlAs layers", Applied physics letters, vol. 75, no. 15: AIP, pp. 2253–2255, 1999.
, "Structural and optical properties of GaN laterally overgrown on Si (111) by metalorganic chemical vapor deposition using an AlN buffer layer", Materials Research Society Internet Journal of Nitride Semiconductor Research, vol. 4, no. 1: Cambridge University Press, 1999.
, "Structural and optical properties of low-dislocation-density GaN laterally overgrown by metalorganic chemical vapor deposition", COMPOUND SEMICONDUCTORS 1998, no. 162: IOP PUBLISHING LTD DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND, pp. 681–686, 1999.
, "STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER (PACS 61-68, 78)-Threading dislocation reduction mechanisms in low-temperature-grown GaAs", Journal of Applied Physics, vol. 86, no. 9: New York, NY: American Institute of Physics, c1937-, pp. 4836–4842, 1999.
, "STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER-High-quality coalescence of laterally overgrown GaN stripes on GaN/sapphire seed layers", Applied Physics Letters, vol. 75, no. 12: New York [etc.] American Institute of Physics., pp. 1706–1708, 1999.
, "Surface structure of GaN (0001) in the chemical vapor deposition environment", Physical review letters, vol. 83, no. 4: APS, pp. 741, 1999.
, "Synthesis and characterization of PbTiO 3 powders and heteroepitaxial thin films by hydrothermal synthesis", Journal of materials research, vol. 14, no. 8: Cambridge University Press, pp. 3303–3311, 1999.
, "Threading dislocation reduction in strained layers", Journal of applied physics, vol. 85, no. 1: AIP, pp. 182–192, 1999.
, "Threading dislocation reduction mechanisms in low-temperature-grown GaAs", Journal of applied physics, vol. 86, no. 9: AIP, pp. 4836–4842, 1999.
, "Atomic force microscopy observation of threading dislocation density reduction in lateral epitaxial overgrowth of gallium nitride by MOCVD", Materials Research Society Internet Journal of Nitride Semiconductor Research, vol. 3: Cambridge University Press, 1998.
"Barmak, Calvert, Speck, and Tung to Chair 1999 MRS Spring Meeting", MRS Bulletin, vol. 23, pp. 52–52, 1998.
, "Blue InGaN MQW laser diodes on sapphire", Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS'98. IEEE, vol. 2: IEEE, pp. 346–347, 1998.
, "Cleaved and etched facet nitride laser diodes", IEEE Journal of selected topics in quantum electronics, vol. 4, no. 3: IEEE, pp. 505–509, 1998.
, "CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES-Microstructure of GaN laterally overgrown by metalorganic chemical vapor deposition", Applied Physics Letters, vol. 73, no. 6: New York [etc.] American Institute of Physics., pp. 747–749, 1998.
, "CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES-Morphology and microstructural evolution in the early stages of hydride vapor phase epitaxy of GaN on sapphire", Applied Physics Letters, vol. 73, no. 21: New York [etc.] American Institute of Physics., pp. 3090–3092, 1998.
, "Cubic and Hexagonal Fractions in GaN Nucleation Layers Measured Using Grazing Incidence X-Ray Scattering", APS March Meeting Abstracts, 1998.
, "Determination of the cubic to hexagonal fraction in GaN nucleation layers using grazing incidence x-ray scattering", Applied physics letters, vol. 72, no. 23: AIP, pp. 2972–2974, 1998.
, "Dislocation generation in GaN heteroepitaxy", Journal of Crystal Growth, vol. 189: North-Holland, pp. 231–243, 1998.
, "Domain pattern formation in epitaxial ferroelectric films", Integrated Ferroelectrics, vol. 20, no. 1-4: Taylor & Francis, pp. 67–68, 1998.
, "Domain pattern formation in epitaxial rhombohedral ferroelectric films. II. Interfacial defects and energetics", Journal of applied physics, vol. 83, no. 5: AIP, pp. 2754–2765, 1998.
, "Domain patterns in epitaxial rhombohedral ferroelectric films. I. Geometry and experiments", Journal of applied physics, vol. 83, no. 5: AIP, pp. 2742–2753, 1998.