Zobrazeno 1 - 10
of 14
pro vyhledávání: '"H. S. Craft"'
Autor:
Raoul Schlesser, John E. Northrup, Z. Yang, H. S. Craft, G. A. Garrett, Michael Kneissl, N. M. Johnson, Rafael Dalmau, Thomas Wunderer, Baxter Moody, Christopher L. Chua, Zlatko Sitar, H. Shen, M. Wraback
Publikováno v:
physica status solidi c. 9:822-825
Sub-300 nm optically pumped ultraviolet lasers were realized on low-defect-density (0001) AlN substrates fabricated from single crystalline AlN boules. The AlxGa1–xN/AlyGa1–yN hetero-structures were grown by metal-organic vapor phase epitaxy near
Autor:
David A. Muller, Zlatko Sitar, L. Fitting Kourkoutis, Seiji Mita, Mark D. Losego, H. S. Craft, Jon Paul Maria, Ramon Collazo
Publikováno v:
Journal of Crystal Growth. 311:1106-1109
Epitaxial heterostructures incorporating the complex ferroelectric oxide Ba 0.5 Sr 0.5 TiO 3 (BST) and GaN were prepared using a combination of RF magnetron sputtering and metalorganic chemical vapor deposition for the respective layers. The heterost
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 26:1507-1510
The authors report a study comparing the surface reactivities of the alkaline earth oxides MgO and CaO with respect to water vapor under ultrahigh and high vacuum conditions. Using x-ray photoelectron spectroscopy and a series of in vacuo exposures s
Publikováno v:
2008 17th IEEE International Symposium on the Applications of Ferroelectrics.
Integration of functional complex oxides with gallium nitride is attractive for advanced device architectures including smart FETs and high-temperature electronics. Inclusion of large bandgap interfacial oxide layers are of interest for band line-up
Autor:
H. S. Craft, Mark D. Losego, Ramon Collazo, Zlatko Sitar, Elizabeth A. Paisley, Jon Paul Maria, Haidong Lu, Alexei Gruverman
Publikováno v:
Journal of Applied Physics. 114:239901
Autor:
H. S. Craft, Zlatko Sitar, Jon Paul Maria, Haidong Lu, Ramon Collazo, Mark D. Losego, Elizabeth A. Paisley, Alexei Gruverman
Publikováno v:
Journal of Applied Physics. 113:074107
Epitaxial integration of PbxZr1−xTiO3 (PZT) (111) with GaN (0002) presents the possibility of polarity coupling across a functional-oxide/nitride heteropolar interface. This work describes the synthesis and characterization of such thin film hetero
Publikováno v:
Applied Physics Letters. 98:082110
We report on the surface stoichiometry of Ga-polar GaN films grown by metalorganic chemical vapor deposition as studied by x-ray photoelectron spectroscopy. GaN film surfaces are found to be Ga-rich, with Ga:N ratios ranging from 1.3:1 to 3.2:1. In v
Publikováno v:
Journal of Applied Physics. 104:114110
A peak permittivity greater than 10 000 has been achieved for calcium copper titanate (CCT) thin films by engineering a thin film microstructure that maximizes space charge contributions to polarizability. This permittivity is an order of magnitude g
Publikováno v:
Applied Physics Letters. 92:082907
We report an x-ray photoelectron spectroscopy (XPS) study of the CaO∕GaN interface. Epitaxial films of CaO (111) were grown on GaN (0002) and analyzed in situ using XPS. We observe Stranski–Krastanov growth, in which CaO coalesces rapidly, then c
Publikováno v:
Journal of Applied Physics. 102:074104
MgO is a proposed dielectric for use as a tunneling barrier in devices integrating GaN and ferroelectric oxides. In this study, we present data regarding the growth mode and band offsets of MgO grown epitaxially on GaN (0002) surfaces using molecular