I electrochemistry and photoelectrochemistry, it is most common to refer the voltage to a reference electrode (RE) or in a two-electrode cell with respect to a counterelectrode (CE). However, in a semiconductor film that is composed of several junctions, as in semiconductor nanoheterostructures including catalytic layers, it is convenient to use the energy scale with reference to the vacuum lev...

Due to emergence of serious obstacles by scaling of the transistors dimensions, it has been obviously proved that silicon technology should be replaced by a new one having a high ability to overcome the barriers of scaling to nanometer regime. Among various candidates, carbon nanotube (CNT) field effect transistors are introduced as the most promising devices for substituting the silicon-based ...

Earlier work showed that the track in the X-ray hardness-intensity diagram of Cir X-1 corresponds to a Z track in its color-color diagram. In this paper, we study the cross spectrum of Cir X-1 in different regions of the hardness-intensity diagram with RXTE/PCA data. Comparing the light curves of Cir X-1 for the energy band 1.8-5.1 keV to those for 5.1-13.1 keV, we find that Cir X-1 exhibits a ...

We study the phase diagram of R1−xAxMnO3 (R=La, Pr, Nd, Sm ; A=Ca, Sr, Ba) by taking into account the degeneracy of eg orbitals and the anisotropy of the transfer integral. The electron-electron interaction is treated in the mean field approximation with the optimization of the spin and orbital structures. The global phase diagram is understood in terms of the two interactions, i.e., the super ...

The gapless Bogoliubov-de Gennes (BdG) quasiparticles of a clean three dimensional spinless px + ipy superconductor provide an intriguing example of a thermal Hall semimetal (ThSM) phase of Majorana-Weyl fermions; such a phase can support a large anomalous thermal Hall conductivity and protected surface Majorana-Fermi arcs at zero energy. We study the effects of quenched disorder on such a gapl...

Hofstadter’s diagram, or the energy spectrum against the magnetic field in tight-binding systems, is obtained for the models having flat (dispersionless) one-electron band(s) that have originally been proposed for itinerant spin ferromagnetism. Magnetic fields preserve those flat bands that arise from a topological reason, while dispersions emerge in a singular manner for the flat bands arising...

In this work, efficient solar-blind metal-semiconductor photodetectors grown on Si (111) by molecular beam epitaxy are reported. Growth details are described,the comparison enters the properties electric of InN/Si and AlGaN/Si photodectors with 0.2 μm of AlGaN and InN layers. Modeling and simulation were performed by using ATLAS-TCAD simulator. Energy band diagram, doping profile, conduction cu...

The influence of the chemical composition on band edges and Fermi level Cu2ZnSn(SxSe1-x)4 stoichiometric compounds was investigated. Cu-poor compounds, Cu1.70Zn1.15SnSSe3 Cu1.70Zn1.15SnS2Se2, were also studied according to same approach. As already reported, absorption threshold increases linearly from 1.05 1.48 eV with increasing sulfur content. Simultaneously, conduction moves −4.4 −3.8 respe...