Now showing items 11-20 of 183
Characteristics of dislocations at strained heteroepitaxial InGaAs/GaAs interfaces
(The American Institute of Physics, 1989-10-01)
The formation, interaction, and propagation of misfit dislocations in molecular‐beam epitaxial InGaAs/GaAs heterointerfaces have been studied by transmission electron microscopy. With the lattice mismatch less than 2%, ...
Valance-Band photoemission intensities in thorium dioxide
(Elsevier, 1989-11)
Resonant photoemission spectra of the O 2p-derived valence band of insulating ThO2 are compared to linear muffin-tin orbital (LMTO) density-of-state (DOS) and XPS intensity calculations. At Th 5d corelevel threshold energies ...
Valley selective tunneling transistor based on valley discontinuities in AlGaAs heterostructures
(The American Institute of Physics, 1989-12-18)
The conduction‐band discontinuities in AlxGa1−xAs/AlyGa1−yAs heterostructure for various valleys (Γ, L, X) are utilized to conceive of a valley selective tunneling transistor. At low temperature, the perpendicular tunneling ...
Streaming flows generated by high‐frequency small‐amplitude oscillations of arbitrarily shaped cylinders
(The American Institute of Physics, 1989-06)
Small‐amplitude harmonic oscillations of arbitrarily shaped cylinders are considered both experimentally and theoretically. For the theoretical model, the flow regime is separated into inner and outer regions. In the inner ...
Parity violation correlations in light muonic atoms
(Springer-Verlag, 1989-12)
The 2 S -1 S transition in light muonic atoms is very sensitive to parity violation correlations induced via neutral currents. Observables depending on these transitions such as the photon polarization and the angular ...
Computational approach to steady-state eutectic growth
(Elsevier, 1989-04)
We formulate a boundary integral approach to the determination of periodic steady-state eutectic growth patterns. The numerical implementation of this method allows us to compute the band of allowed velocities for a given ...
A vortex‐dipole sheet model for a wake
(The American Institute of Physics, 1989-02)
A vortex model for a free shear layer with a wake component is proposed. The layer is represented by a curve which supports both a vortex sheet and a vortex‐dipole sheet. The vortex sheet yields a monotonic velocity profile ...
Random sequential adsorption of unoriented rectangles onto a plane
(The American Institute of Physics, 1989-08-15)
Random sequential adsorption of nonoverlapping rectangles of arbitrary orientation onto a continuous plane was investigated by computer simulation. The approach to the jamming limit was found to obey Feder’s law for a wide ...
Improved indium seal for LiF windows of resonance lamps for use at low temperatures
(The American Institute of Physics, 1989-03)
A method of attaching crystalline LiF windows to glass lamps has been developed. The resulting seals have good vacuum properties and can be cooled to cryogenic temperatures while maintaining their vacuum integrity. The ...