Now showing items 21-30 of 116
The effects of clumping and substructure on intracluster medium mass measurements
(Univ Chicago Press, 1999-07-20)
We examine an ensemble of 48 simulated clusters to determine the effects of small-scale density fluctuations and large-scale substructure on X-ray measurements of the intracluster medium (ICM) mass. We measure rms density ...
Microstructure characterization of amorphous thin solid films in a fringe-free environment
(The American Institute of Physics, 1999-01-01)
We have comprehensively analyzed the influence of the probe beam’s polarization state and incident angle on the vibrational absorption spectra of thin solid films such as hydrogenated amorphous silicon nitride and hydrogenated ...
Rheological and molecular characterization of linear backbone flexible polymers with the Cole-Cole model relaxation spectrum
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-05)
The empirical Cole-Cole distribution is an analytical three parameter model of the relaxation spectra that provides accurate fits to experimental dynamic viscosity data for many systems of commercial linear backbone flexible ...
Charge control and mobility studies for an AlGaN/GaN high electron mobility transistor
(The American Institute of Physics, 1999-01-01)
A charge control model and a mobility model are developed for the Al–GaN/GaN high electron mobility transistor (HEMT) device. The model addresses issues of how piezoelectric effect and interface roughness influence device ...
Single optical cycle laser pulse in the visible and near-infrared spectral range
(Springer-Verlag, 1999-09)
Since the inception of the laser, pulse duration has been continuously decreased by the use of a variety of techniques: Q-switching, mode-locking, and pulse compression. We would like to present a new technique based on ...
57Fe57Fe Mössbauer spectroscopic investigation of complex magnetic structures in Ga, Sc, and In substituted M-type hexagonal ferrites
(The American Institute of Physics, 1999-04-15)
Investigation of preliminary evidence that Ga, Sc, and In influence the bulk and dynamic magnetic properties of hexagonal ferrites by means other than those supported in existing models has been undertaken. In SrFe12−xMx ...
Molecular dynamics study of isobaric and isochoric glass transitions in a model amorphous polymer
(The American Institute of Physics, 1999-04-08)
We perform molecular dynamics simulations of the glass transition through isobaric and isochoric cooling of a model polymeric material. In general, excellent agreement between the simulation results and the existing ...
Determination of diffusion in polycrystalline platinum thin films
(The American Institute of Physics, 1999-11-01)
Grain boundary diffusion of titanium through platinum thin films has been carried out in the temperature range from 200 to 600 °C. Five different platinum/titanium bilayer thicknesses, from 35 to 800 Å Pt, were annealed ...
The piezoresistance of aluminum alloy interconnect structures
(The American Institute of Physics, 1999-02-01)
The effects of applied strain on the resistivity of Al thin film metallization interconnects have been measured with a novel methodology that uses thermal expansion mismatch to produce the strain. The interconnect volumetric ...
The effects of chemical composition on electron delocalization and magnetic ordering in ilvaite, Ca[Fe2+, Fe3+][Fe2+]Si2O7O(OH)Ca[Fe2+,Fe3+][Fe2+]Si2O7O(OH)
(The American Institute of Physics, 1999-04-15)
Substitutional impurities are expected to have significant influences on long-range, order–disorder phenomena associated with magnetic ordering and electron delocalization in mixed-valence solids. These influences have ...