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Now showing items 1221-1230 of 2111
Evolution of magnetic nanophases of Ni embedded in Al2O3 (001) matrix by xray magnetic circular dichroism
(Elsevier, 2010)
We report on the element-specific magnetic characterization of Ni nanoparticles (NPs) embedded in Al2O3(001) matrix prepared by ion-implantation (Ni:5?1016-2?1017 ions cm-2) technique. The x-ray diffraction studies reveal ...
Instrumentation and techniques in confocal microscopy
(Trinity College (Dublin, Ireland). School of Physics, 2007)
Liquid crystal variable focal length microlenses are designed, fabricated and tested for
inclusion into the confocal system. Their emerging light fields are imaged and examined. This
proves a novel, efficient and thorough ...
Growth and ordering of Ni(II) diphenylporphyrin monolayers on Ag(111) and Ag/Si(111) studied by STM and LEED
(2012)
The room temperature self-assembly and ordering of (5,15-diphenylporphyrinato)nickel(II) (NiDPP) on the Ag(111) and Ag/Si(111)-(?3 ? ?3)R30? surfaces have been investigated using scanning tunnelling microscopy and low-energy ...
Magnetoresistance of Co-doped ZnO thin films
(2006)
Longitudinal, transverse, and perpendicular magnetoresistances were investigated at temperatures
1.2 T 300 K in fields of up to 20 T for four ZnO films: one undoped, two with 4% Co one
paramagnetic, the other exhibiting ...
Dynamic RKKY interaction in graphene
(2012)
The growing interest in carbon-based spintronics has stimulated a number of recent theoretical studies on the
Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in graphene, based on which the energetically favorable
alignment ...
Two-dimensional Model of Self-Pulsation in AlGaAs Laser Diodes
(SPIE, 2004)
The use of a fully two-dimensional waveguide analysis of the optical modes in a self-pulsating laser is described. We
show that there is a need for such an analysis as the effective index model often used for modeling ...
Nonlinear reflectivity of semiconductor microcavities in the weak- and strong-coupling regimes: Experiment and theory
(1998)
We use an entirely classical model to describe the nonlinear properties of semiconductor microcavities in both the weak- and strong-coupling regimes, as measured in a series of spectrally and temporally resolved pump-probe ...
Self-assembled Fe nanodots on Ge (001)
(2006)
The initial nucleation of Fe onto the (2x1) reconstructed Ge(001) surface is studied. Uniformly sized two-dimensional Fe dots are shown to nucleate. They have an apparent corrugation height similar to 1.1 A and lateral ...
Emergence of local magnetic moments in doped graphene-related materials
(2009)
Motivated by recent studies reporting the formation of localized magnetic moments in doped graphene, we
investigate the energetic cost for spin polarizing isolated impurities embedded in this material. When a wellknown
criterion ...
Comparative Imaging Study in Ultrasound, MRI, CT and DSA using a Multi-Modality Renal Artery Phantom
(2011)
Purpose: A range of anatomically-realistic multi-modality renal artery phantoms consisting of vessels with varying degrees of stenosis was developed and evaluated using four imaging techniques currently used to detect renal ...