Search
Now showing items 11-20 of 48
Quantitative comparison of ultracentrifuged and diluted single walled nanotube
(2009)
We have carried out a quantitative comparison of the dispersion quality for ultracentrifuged and diluted surfactant-stabilised single walled nanotube dispersions. We have characterised these dispersions at a set concentration ...
The free-electron response in reflectance anisotropy spectra
(2006)
Reflectance anisotropy spectra (RAS), extended into the near infrared spectral region, of anisotropic metal islands, metal surfaces, and atomic nanowires are analyzed with respect to anisotropies in the optical response ...
Resonant Soft X-Ray Inelastic Scattering and Soft X-Ray Emission Study of the Electronic Structure of alpha-MoO3
(2009)
The electronic structure of quasi-low-dimensional solids is a topic of enduring interest due to the complex
many-body interactions that exist in such materials and their resulting exotic physical properties. A well ...
Internalization of ferromagnetic nanowires by different living cells
(2006)
The ability of living cells, either adherent or suspended, to internalize nickel nanowires is demonstrated for MC3T3-E1, UMR106-tumour and Marrow-Stromal cells. Nanowires were produced by electrodeposition, 20 mum long and ...
Polarization dependence of a GaAs-based two-photon absorption microcavity photodetector
(2008)
In this paper, the polarization response of a GaAs based twophoton
absorption microcavity photodetector has been studied. The
deviation in the dependence of the detector response from that of bulk GaAs
is shown to be ...
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 ...
Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)
(2007)
The optical anisotropy of Au protected Fe layers grown on a vicinal W(110) surface has been investigated using reflectance anisotropy spectroscopy (RAS). Iron nanostripes formed at submonolayer coverage, as well as Fe ...
Magnetic second-harmonic generation from the terraces and steps of aligned magnetic nanostructures grown on low symmetry interfaces
(2008)
Aligned magnetic nanostructures grown on low symmetry interfaces are generally inhomogeneous, with different magnetic species, such as terrace and step atoms, contributing to the overall magnetic response from the interfacial ...
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 ...