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Article
Open AccessA data-driven network model of primary myelofibrosis: transcriptional and post-transcriptional alterations in CD34+ cells
microRNAs (miRNAs) are relevant in the pathogenesis of primary myelofibrosis (PMF) but our understanding is limited to specific target genes and the overall systemic scenario islacking. By both knowledge-based...
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Article
Open AccessThird type of domain wall in soft magnetic nanostrips
Magnetic domain walls (DWs) in nanostructures are low-dimensional objects that separate regions with uniform magnetisation. Since they can have different shapes and widths, DWs are an exciting playground for f...
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Article
Radiative recombination processes of thermal donors in silicon
There is a recent, renewed attention on the possible development of optical emitters compatible with silicon microelectronic technology and it has been recently shown that light emitting diodes could be manufa...
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Article
Characterization of Nanocrystalline Silicon Film grown by LEPECVD for Photovoltaic Applications
This work deals with the structural properties of nanocrystalline (nc) silicon films for solar cell applications, grown using a new PECVD process based on an arc discharge plasma characterized by low ion energ...
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Article
Phenomenological model of nanocrystalline silicon film formation by plasma-enhanced chemical vapor deposition
A combined theoretical and experimental analysis of the crystalline phase fraction in nanocrystalline films grown by low-energy plasma-enhanced chemical vapor deposition is presented. The effect of the key par...
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Article
Bulk solar grade silicon: how chemistry and physics play to get a benevolent microstructured material
The availability of low-cost alternatives to electronic grade silicon has been and still is the condition for the extensive use of photovoltaics as an efficient sun harvesting system. The first step towards th...
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Article
Domain wall dynamics and interlayer interactions in magnetic trilayer systems studied by XMCD-PEEM
We have used time-resolved x-ray magnetic circular dichroism combined with photoemission electron microscopy (XMCD-PEEM) to investigate the layer-resolved microscopic magnetization reversal in FeNi/X/Co (with ...
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Chapter and Conference Paper
Structural Characterization of Nanocrystalline Silicon Layers Grown by LEPECVD for Optoelectronic Applications
Structural analysis of nanocrystalline silicon layers deposited on oxidized and non-oxidized silicon substrates and on glass substrates by low-energy plasma-enhanced chemical vapour deposition was carried out ...
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Chapter and Conference Paper
Hydrogenated Nanocrystalline Silicon Investigated by Conductive Atomic Force Microscopy
Hydrogenated nanocrystalline silicon for photovoltaic applications has been investigated by using scanning force microscopy. Morphological properties as well as electrical properties have been investigated wit...
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Article
Micro-and nano-structures in silicon studied by DLTS and scanning probe methods
Presently, there is a high interest in silicon-based optical devices that would render possible the development of fully silicon-based optoelectronics. Being an indirect-gap semiconductor, silicon is poorly ef...
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Article
Magnetic relaxation measurements of exchange biased (Pt/Co) multilayers with perpendicular anisotropy
Magnetic relaxation measurements were carried out by magneto-optical Kerr effect on exchange biased (Pt/Co)5/Pt/FeMn multilayers with perpendicular anisotropy. In these films the coercivity and the exchange bi...
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Article
Efficient silicon light-emitting diode with temperature-stable spectral characteristics
The influence of temperature on the parameters of the band-to-band emission spectrum of a light-emitting diode based on single-crystal silicon was investigated; the unprecedentedly high stability against varia...
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Article
Effect of pressure-enhanced single step annealing on the silicon photoluminescence
The effect of single-step annealing under GPa hydrostatic pressures on the photoluminescence of Cz silicon samples has been investigated at 450, 650 and 1000°C. It has been demonstrated that the effect of appl...
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Article
Effect of surface state density on room temperature photoluminescence from Si-SiO2 structures in the range of band-to-band recombination in silicon
The relation between the intensity of band-to-band photoluminescence in single-crystal silicon and the surface state density at the interface between silicon and silicon dioxide in Si-SiO2 structures fabricated b...
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Article
Magnetic interface polarization of the La-5d states in Fe/LaHx multilayers
For rare-earth (RE)-hydrides (REHx), a metal-to-insulator transition is observed if the hydrogen concentration is increased from the dihydride (x=2) towards the trihydride (x=3). This transition provides an ob...
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Article
X-ray absorption analysis of sputter-grown Co/Pt stackings before and after helium irradiation
We have studied the local order around cobalt atoms in Pt/Co/Pt layered systems gradually modified by irradiation using 30 keV helium ions. Using X-ray diffraction and X-ray Absorption Fine Structure, we have ...
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Chapter
X-ray Magnetic Circular Dichroism in the Investigation of Magnetisation Dynamics in the Nanosecond Time Scale
We have used the single bunch filling mode of the ESRF synchrotron to study the magnetisation reversal dynamics. It is a pump-probe type of experiment in the time scale ranging from 1 ns to 1000 ns. In the pre...
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Article
Study of the Radiative and Non-Radiative Recombination Processes at Dislocations in Silicon by Photoluminescence and LBIC Measurements
It is well known that the sharp, room temperature luminescence emission at 1.54 μm from dislocated silicon has set off a great interest for this material in view of its applications in the third window of opti...
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Article
Element-Specific Magnetization Reversal in Fe/Ce Multilayers
Fe/Ce multilayers are magnetically soft with coercive fields of a few Oersteds. In these structures the Ce-5d states are magnetically polarized by hybridization with the 3d states of Fe. The element selectivit...
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Article
Erbium-doped silicon epilayers grown by liquid-phase epitaxy
A careful analysis of the features of the spectroscopic properties of Er-doped and undoped epitaxial silicon films grown by liquid-phase epitaxy at 950 °C in silicon-saturated indium melts shows that threading...
