Enhanced magnetization at the Cr/MgO(001) interface

Refraction at the Interface of a Lossy Metamaterial

The refraction phenomenon at the interface of an ordinary material and a lossy metamaterial has been investigated. For oblique incidence on the lossy metamaterial, the planes of constant amplitude of the refracted wave are parallel to the interface and the plane of constant phases make a real angle with the interface (real refraction angle). The real refraction angle and hence, the real refract...

Observation of periodic oscillations in magnetization-induced second harmonic generation at the Mn/Co interface

LOW-ENERGY-ION ENHANCED DIFFUSION AT THE SURFACE OF METALS

Radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. The displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials toward the surface and also into the solid. The mechanism has been studied here by a specia...

The Distribution of Magnetization for a Stepped Ferro-antiferromagnet Interface

Multilayer systems with alternating layers of ferromagnets (FM) and antiferromagnets (AFM) [1] have been drawing a special attention. In experiments some interlayers are often wedge-shaped with a small divergence angle [2] and the interface has a stepped form with a large separation between steps. The presence of a step at the boundary of a layered AFM leads to local variation of the magnetic s...

Crossing the coexistence line at constant magnetization

Using Monte Carlo histogram methods, the microcanonical caloric curve is computed for the Ising model in two and three dimensions with fixed magnetization. Whereas the signatures of a possible first order phase transition are clearly visible for large systems, intriguing finite size effects are revealed for smaller system sizes. The behaviour of the caloric curve is studied in a systematic way....