This paper presents a single-element microstrip spade-shaped patch antennas with partial ground plane, integrated an electromagnetic band-gap (EBG) structure, and fed feedline to achieve wideband, dual-band band-notched characteristic. Two similar mushroom-like EBG structures built into the wideband antenna were used suppress specific band, resulting in dual-band. The wide-band achieved broad b...

Thin La12zYzHx films, in the composition range 0,z,1 and 0,x,3, are studied using x-ray diffraction, dc resistivity measurements, reflectance-transmittance measurements, and ellipsometry in the visible and nearinfrared spectral range. For x50 the structural phase diagram is similar to that of the bulk system. Upon hydrogen absorption and desorption, the La12zYzHx films do not disproportionate. ...

Ground-state properties of the attractive Hubbard model in one dimension are studied by means of both the exact Bethe-ansatz formalism and the self-consistent field ~SCF! approach with renormalized chemical potential for general band fillings n and a wide range of coupling strength U/t . The energy, the concentration of double occupied sites, the kinetic energy and the chemical potential of the...

Band structure parameters, such as the band gap, can be estimated using electrical transport properties. In many thermoelectric studies, the temperature dependent Seebeck coefficient is used to estimate the band gap using the Goldsmid–Sharp band gap formula: Eg 1⁄4 2eSmaxTmax. This important, fundamental parameter is useful for characterizing and understanding any semiconductor, but it is parti...