We report temperature dependent Andreev reflection measurements of Co/ Y1Ba2Cu3O7−δ (YBCO) heterostructure samples with junction areas of 1 μm diameter. Modelling of the 5-70 K conductivity data according to a modified Blonder-Tinkham-Klapwijk theory yields a spin polarization in Co film amounting to 34% which is almost constant up to 70 K. The YBCO films have been grown by pulsed laser deposit...

A Perrone, F Gontad, A Lorusso, M Di Giulio, Esteban Broitman and M Ferrario, Comparison of the properties of Pb thin films deposited on Nb substrate using thermal evaporation and pulsed laser deposition techniques, 2013, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, (729), 451-455. http://dx.doi.org/10.1016/j.nim...

The influence of epitaxial growth method on surface morphology was explored using a solid-on-solid, rate equation, Ž . Ž . Monte Carlo simulation whose parameters were chosen to approximate 1=1 Si 001 . In simulations corresponding to molecular beam epitaxy, films of 10 monolayer thickness were deposited with a steady-state flux of 0.25 monolayersrs and an adatom energy of 0.3 eV. In simulation...

The effect of substrate temperature and oxygen pressure on the microstructure and magneto-optical (m-0) properties of Sr-ferrite films grown on (001) single crystal sapphire substrates by pulsed laser deposition has been investigated. The results demonstrated that smooth c-axis oriented films, could only be prepared at a narrow operational window of the useful oxygen pressure and at high substr...

We review laser applications in thin-film photovoltaics (thin-film Si, CdTe, and Cu(In,Ga)Se2 solar cells). Lasers are applied in this growing field to manufacture modules, to monitor Si deposition processes, and to characterize opto-electrical properties of thin films. Unlike traditional panels based on crystalline silicon wafers, the individual cells of a thin-film photovoltaic module can be ...

This paper presents a post-packaging tuning process for microresonators by PLD (pulsed laser deposition). The microresonators are first hermetically packaged using a RTP (rapid thermal processing) aluminum-to-silicon nitride bonding process. The resonator mass is then altered by adding materials on the surface of the structure using PLD to achieve the desired resonant frequency. The demonstrate...

The suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. A feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. Physical vapor deposition (PVD) and pulsed plasma-enhanced chemical vapor deposition (PECVD), naturally, form asymmetric na...

Pulsed laser ablation is a simple, but versatile, experimental method that finds use as a means of patterning a very diverse range of materials, and in wide areas of thin film deposition and multi-layer research. Superficially, at least, the technique is conceptually simple also, but this apparent simplicity hides a wealth of fascinating, and still incompletely understood, chemical physics. Thi...