Now showing items 21-30 of 97
Cooperative optical bistability in the dimer system Cs3Y2Br9:10% Yb3+
(The American Institute of Physics, 1996-01-22)
In single crystals of the dimer compound Cs3Y2Br9:10% Yb3+ below 31 K, both visible (VIS) and near‐infrared (NIR) luminescence intensities were found to exhibit hysteresis as a function of incident NIR intensity and ...
Charge fluctuations in the slave fermion representation of the t - J model - evidence for phase separation from loop corrections
(IOP Publishing Ltd, 1996-06-17)
We investigate the charge density correlation function in the slave fermion representation of the two-dimensional t - J model using the self-consistent perturbation approach developed for that model by Li et al (1992 ...
Inference of ground surface temperature history from subsurface temperature data: Interpreting ensembles of borehole logs
(Birkhäuser-Verlag; Birkhäuser Verlag ; Springer Science+Business Media, 1996-08)
Ground surface temperature histories (GSTHs) inferred from borehole temperaturedepth ( T-z ) data are often degraded, to a various extent, by random or systematic noise in the T-z data and in the measurements of thermophysical ...
The Euler-Poincaré equations and double bracket dissipation
(Springer-Verlag, 1996-01)
This paper studies the perturbation of a Lie-Poisson (or, equivalently an Euler-Poincaré) system by a special dissipation term that has Brockett's double bracket form. We show that a formally unstable equilibrium of the ...
Void formation during film growth: A molecular dynamics simulation study
(The American Institute of Physics, 1996-02-01)
Two‐dimensional, nonequilibrium molecular dynamics simulations have been applied to study the structure of thin films grown on single‐crystal Lennard‐Jones substrates. The principal microstructural features to develop ...
A spin polarized disc. II
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1996-03)
We present a solution to the gravitational field equations which describes either a static disc in general relativity or a spin polarized rotating disc in a Riemann-Cartan spacetime. The disc has infinite radius and finite ...
Computer simulation of impact induced fracture and fragmentation in brittle solids
(The American Institute of Physics, 1996-05-05)
A modified molecular dynamics method is used to describe the dynamic fracture of impact loaded brittle solids with realistic microstructural features. This model is based upon the traditional molecular dynamics procedure ...
Laser for wakefield plasma accelerator
(The American Institute of Physics, 1996-02-05)
The recent development of the technology to build tabletop high power (terawatt) short pulse (picosecond) lasers has enabled the realization of the wakefield accelerator. The characteristics of a Nd:glasses laser for use ...
Initial stages of GaN/GaAs(100) growth by metalorganic chemical vapor deposition
(The American Institute of Physics, 1996-08-01)
A study of GaN buffers grown by metalorganic chemical vapor deposition on (001) GaAs substrates was performed. Nucleation images obtained by atomic force microscopy (AFM) were employed to investigate the growth temperature, ...
Temperature effects in the collisional deactivation of highly vibrationally excited pyrazine by unexcited pyrazine
(The American Institute of Physics, 1996-08-22)
Time‐dependent infrared fluorescence (IRF) from the C–H fundamental and overtone bands was used to monitor the vibrational deactivation (by unexcited pyrazine) of pyrazine excited at 308 nm with a pulsed laser. The 1‐color ...