Nonlocal impedance boundary conditions for p- and s-polarized electromagnetic fields at the curved interface between vacuum and a metal, defined by the equation x3 = ζ(x1), when the plane of incidence is the x1x3-plane, are derived. The conditions for the validity of a local impedance boundary...

We report a study on thermodynamic properties of a two-dimensional electron gas confined in a sector of a circular cylinder immersed in a dc magnetic field perpendicular to its axis. This field configuration produces on the electrons in the curved surface, effects similar to a non-homogeneous...