Documents in process

The investigation focuses on the reduction of cobalt oxide-containing multilayers to metallic cobalt (Co) through a systematic thermal annealing process and the subsequent changes in the structural and magnetic properties. The reduced structures show a significant change in the electron density profile, confirming the reduction of cobalt oxide. [...]

In this paper, we present a design of a high-efficiency high-gain free-electron laser oscillator based on the use of a strongly tapered undulator for extracting energy from high-brightness electron beams. We provide an analytical model of the setup followed by numerical simulations for lasing at the wavelength of 13.5 nm. [...]

In metals and alloys, solute segregation at grain boundaries typically undermines cohesion and ductility. Here, we overturn this paradigm by showing that solvent Fe atoms can preferentially enrich low-angle grain boundaries (LAGBs) in a ferrous alloy, dramatically enhancing ductility. [...]

The development of pulsed intense x-ray sources, such as free electron laser, offers new avenues for high pressure experiments. Here, we study the feasibility and metrology of x-ray heating in diamond anvil cells at the European x-ray free electron laser. [...]

The quality of organic semiconductor [tris(8-hydroxyquinoline)aluminum] Alq3 films and interface of Alq3-Co heterostructure plays a crucial role in the performance of organic spintronic devices. Four Alq3 thin films were deposited at four different substrate temperatures ranging from 30 °C to 90 °C to study the effects of deposition temperature on its structure using x-ray reflectivity (XRR) and Grazing-incidence small-angle x-ray scattering (GI-SAXS) studies. [...]