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Transversal magneto-resistance in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased system
(2012)
We have investigated transversal magneto-resistance (MR) in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased systems. It was found that the magnetic field dependence and the magnitude of the transversal MR in both systems ...
Quantum corrections to the Ising interactions in LiYxHo1-xF4
(Springer, 2008)
We systematically derive an effective Hamiltonian for the dipolar magnet LiY1?xHoxF4, including
quantum corrections which arise from the transverse dipolar and hyperfine interactions. These
corrections are derived using ...
Simple setup for rapid testing of third-order nonlinear optical materials
(1990)
A relatively inexpensive and versatile degenerate four-wave mixing setup is described utilizing a nitrogen laser pumped dye laser. Samples can be screened rapidly, which is demonstrated with the example of a semiconductor ...
How can Sodium MRI techniques help us understand acute stroke?
(2012)
This article addresses the potential usefulness of sodium MRI in the acute phase of stroke, asking whether the additional time required to acquire high quality sodium images is justified in the time-critical minutes following ...
Bose condensation of cavity polaritons beyond the linear regime: The thermal equilibrium of a model microcavity
(2001)
We consider a generalization of the Dicke model. This model describes localized, physically separated,
saturable excitations, such as excitons bound on impurities, coupled to a single long-lived mode of an optical
cavity. ...
Experimental Investigation of Polarization Effects in Semiconductor Optical Amplifiers and Implications for All-Optical Switching
(2008)
A free-space contra-propagation configuration is
implemented and pump-probe studies are undertaken in order
to study polarization-dependent gain dynamics in bulk semiconductor
optical amplifiers (SOAs) and their application ...
The HST absorption line key project. IX. Emission line studies of PG 2251+113
(American Astronomical Society, 1994)
We present Hubble Space Telescope (HST) and quasi-simultaneous ground-based observations of the z = 0.3252 QSO PG 2251113. We find a correlation between line widths and the critical density for de-excitation of the forbidden ...
Spin-dependent photoconductivity in CVD- and MBE-grown silicon-on-sapphire
(1995)
Spin-dependent photoconductivity is observed in (100) silicon films grown on sapphire by CVD and MBE. The CVD films are either in their as-grown state or have undergone single or double solid-phase epitaxial regrowth. For ...
Serial Post-mortem Relaxometry in the Normal Rat Brain and Following Stroke
(2008)
Purpose: Investigation of MRI for non-invasive autopsy via measurements of serial changes in relaxation parameters of the rat brain during the post-mortem interval.
Materials and Methods: Post-mortem relaxometry ...
On the 3-D reconstruction of Coronal Mass Ejections using coronagraph data
(Copernicus Publications, 2010)
Coronal Mass ejections (CMEs) are enormous eruptions of magnetized plasma expelled from the Sun into the interplanetary space, over the course of hours to days. They can create major disturbances in the interplanetary ...