Resonant photoemission spectra of the O 2p-derived valence band of insulating ThO2 are compared to linear muffin-tin orbital (LMTO) density-of-state (DOS) and XPS intensity calculations. At Th 5d corelevel threshold energies (85 ~< hv <<. 120eV), resonance is greatest at the bottom of the O 2p band where calculated p/d hybrid states are greatest; p / f hybrid content is weak by comparison. We c...

In this paper, we have presented a heterojunction gate all around nanowiretunneling field effect transistor (GAA NW TFET) and have explained its characteristicsin details. The proposed device has been structured using Germanium for source regionand Silicon for channel and drain regions. Kane's band-to-band tunneling model hasbeen used to account for the amount of band-to...

Magneto-transmission measurements were carried out on a series of ZnMnSe/ZnBeSe quantum wells (QWs) in order to determine the band o!set of ZnBeSe relative to ZnSe. We observed strong transitions from the ground state of the valence band to that of the conduction band in this system. The transition energy was observed to systematically increase with increasing Be concentration in the ZnBeSe bar...

Mn3Ta2O8, a stable targeted material with an unusual and complex cation topology in the complicated Mn-Ta-O phase space, has been grown as a ≈3-cm-long single crystal via the optical floating-zone technique. Single-crystal absorbance studies determine the band gap as 1.89 eV, which agrees with the value obtained from density functional theory electronic-band-structure calculations. The valence ...

The dispersion of the valence band within the electron accumulation layer of n-type InN(0001̄) has been directly measured using angle-resolved photoemission spectroscopy. Intermixing between the heavy-hole and light-hole valence bands in the intrinsic quantum well potential associated with the near-surface electron accumulation layer results in an inverted band structure, with the valence band m...

In this talk, I will propose that the mix valence phenomena in some of the rare earth compounds will naturally lead to non-trivial topology in band structure.One of the typical example is SmB6, where the intermediate valence of Sm generates band inversion at the X point and the non-trivial Z2 index. Other than SmB6, YbB6 and YbB12 are both mix valence compounds. By applying LDA+Gutzwiller to th...

Calculation of Ni 2p photoelectron spectra for NiO has been performed within a picture which takes into full account the itinerant character of valence electrons and the localized many-body interaction between core and valence electrons. The results of an ab initio band-structure calculation are used as an input for the calculation of self-energy correction and spectral function according to a ...

The electronic structures of CuTe2 and Cu7Te4 were determined from first principles. The band structures, densities of states and projected contributions of atomic states were calculated with DFT ASWand FP-LAPW codes. Both compounds stabilize by establishing metallic instead of ionic systems. This behaviour is explained in terms of partly occupied valence bands that result from a range of Cu–Te...

The magnetic linear dichroism (MLD) was used to study the magnetic properties of Ni-ultrathin film grown on ferromagnetic substrate Co(001). The MLD in photoemission has been measured for either the valence Ni3d states around the Ni3p threshold or 3p core level. Our dichroism measurements of the valence Ni3d states conclude that the resonance effect is present on MLD for ‘6 eV-satellite’ in the...