Browsing Physics (Scholarly Publications) by Title
Now showing items 777-796 of 1691
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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 ... -
Interplay of bulk and interface effects in the electric-field-driven transition in magnetite
(2010)Contact effects in devices incorporating strongly correlated electronic materials are comparatively unexplored. We have investigated the electrically driven phase transition in magnetite 100 thin films by fourterminal methods. ... -
Intrinsic decoherence mechanisms in the microcavity polariton condensate
(American Physical Society, 2008)The fundamental mechanisms which control the phase coherence of the polariton Bose-Einstein condensate (BEC) are determined. It is shown that the combination of number fluctuations and interactions leads to decoherence ... -
Inverted magnetoresistance in dual spin valve structures with a synthetic antiferromagnetic free layer
(2009)We report an oscillation of the giant magnetoresistance GMR ratio as a function of Ru layer thickness in the CoFe/Cu/ CoFe/Ru/CoFe SAF/Cu/CoFe/IrMn dual spin valve SV structure. A normal GMR with a positive sign is ... -
Investigating the driving mechanisms of coronal mass ejections
(ESO, 2010)Aims. The objective of this study was to examine the kinematics of coronal mass ejections (CMEs) using EUV and coronagraph images, and to make a quantitative comparison with a number of theoretical models. One particular ... -
Investigation of different synthetic routes to and structure-property relationships of poly(m-phenylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene)
(2003)The synthesis of poly(m-phenylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene) by Horner?Emmons and Wittig condensation polymerisation in three different solvents is described. The chemical and optical properties of the ... -
Investigation of optimum wavelength converter based on nonlinear polarization rotation in a bulk SOA
(2007)This work is focused on understanding and optimising the physical mechanisms responsible for wavelength conversion based on cross-polarisation modulation (XPolM) in a bulk semiconductor optical amplifier. A comparison is ... -
Investigation of polarization dependent gain in a bulk SOA
(2007)The polarization dependence of the gain dynamics in a bulk semiconductor optical amplifier is examined using two experimental setups. The first experimental investigation is based on four-wave mixing. Using a low-pass ... -
Investigation of the physical mechanisms of shear-force imaging
(American Institute of Physics, 1996)It is shown that shear-force imaging, as is commonly used for distance regulation in scanning near-field optical microscopy, is not a reliable technique for accurate topographic measurements. This is because different ... -
Investigation on the origin of the magnetic moment of BiFeO3 thin films by advanced x-ray characterizations
(2006)Single phase 001 -oriented BiFeO 3 BFO thin films grown by pulsed laser deposition can only be obtained in a narrow window of deposition pressure and temperature and have a low magnetic moment. Out of ... -
IrMn as exchange-biasing material in systems with perpendicular magnetic anisotropy
(American Institute of Physics, 2005)Contact between a Co/Pt multilayer and an IrMn film leads to perpendicular exchange bias. The exchange bias field does not depend on the degree of (111) film texture and for Co/Pt multilayers with IrMn at the bottom it can ... -
Is the activity level of HD80606 influenced by its eccentric planet?
(2016)Aims. Several studies suggest that the activity level of a planet-host star can be influenced by the presence of a close-by orbiting planet. Moreover, the interaction mechanisms that have been proposed, magnetic interaction ... -
The kinematics of coronal mass ejections using multiscale methods
(2009)Aims. The diffuse morphology and transient nature of coronal mass ejections (CMEs) make them difficult to identify and track using traditional image processing techniques. We apply multiscale methods to enhance the visibility ... -
Kohlraush thermal relaxation in a random magnet
(American Physical Society, 1987)Specific-heat measurements on amorphous FexZr100-x (x=90 and 92) by a thermal relaxation method reveal a temperature decay of the form T(t)=T0+T exp[-(t/)] below 20 K, where the alloys are asperomagnetically ordered. 0.5 ... -
Label-free screening of biochemical changes in macrophage-like cells following MoS2 exposure using Raman micro-spectroscopy
(2021)The emergence of large scale production techniques for 2D particulate materials has dramatically increased their applications potential. Understanding the interactions of biological cells with such particulate material is ... -
Langmuir probe characterization of laser ablation plasmas
(Elsevier, 2009)For laser ablation plumes that are significantly ionized, Langmuir probes have proved to be a useful tool for measuring the plume shape, ion energy distribution, and electron temperature. Typically in laser ablation plasmas ...
