La0.67Ca0.33MnO3 thin films were epitaxially grown on miscut MgO(001) substrates by pulsed laser ablation. Electrical transport properties were studied by using an ultra high vacuum, four-probe STM system at different temperatures. Anomalous resistivity behavior and metal-insulator transition temperatures were found, both of which are highly dependent upon the miscut angle (1, 3, and 5°). These...

OBJECTIVE To evaluate the clinical, radiological, and histopathological features, treatment, and outcome of a series of orbital venous flow malformations (OVMs) with the aim of delineating a more systematic approach for treatment. METHODS A 38-year retrospective review of 22 patients with OVMs followed up at 1 institute. RESULTS Eighteen of 22 patients (13 women and 9 men) showed clinical o...

We characterize spatial dispersion in longitudinally invariant drawn metamaterials with a magnetic response at terahertz frequencies, whereby a change in the angle of the incident field produces a shift in the resonant frequency. We present a simple analytical model to predict this shift. We also demonstrate that the spatial dispersion is eliminated by breaking the longitudinal invariance using...

conclusions radiofrequency ablation may be used successfully in the treatment of parathyroid adenoma when a patient cannot tolerate surgery. case presentation a 47-year-old patient was referred to our hospital (namazi hospital, shiraz, iran) in april, 2015 with intracranial hemorrhage, as well as high serum calcium and pth (parathyroid hormone) levels (12.1 mg/dl and 1062 pg/ml, respectively), ...

Physical mechanisms of UV-laser ablation of polyimide (Kapton H) are discussed for different laser pulse duration from long (p,s) to ultra-short (ps) laser pulses. Theoretical analysis of experimental data suggests that with long laser pulses the mechanism appears to be thermal. The activation energies for ablation are about 1.5 eV, and typical temperatures lie in the range 1400-1800 K. With ns...

Multiscale computational approach that combines different methods to study laser ablation phenomenon is presented. The methods include the molecular dynamics (MD) breathing sphere model for simulation of the initial stage of laser ablation, a combined MD finite element method (FEM) approach for simulation of propagation of the laser-induced pressure waves out from the MD computational cell, and...

As a materials processing technique, laser ablation was utilized for the first time in the 1960's, after the first commercial ruby laser was invented. Nevertheless, as a thin film growth method it did not attract much research interest until the late 1980 ́s, when it has been used for growing high temperature superconductor films. Since then, the development of the pulsed laser deposition (PLD) ...