Electronic Structure ofYbB6: Is it a Topological Insulator or Not?

Interface electronic structure at the topological insulator-ferrimagnetic insulator junction.

An interface electron state at the junction between a three-dimensional topological insulator film, Bi2Se3, and a ferrimagnetic insulator film, Y3Fe5O12 (YIG), was investigated by measurements of angle-resolved photoelectron spectroscopy and x-ray absorption magnetic circular dichroism. The surface state of the Bi2Se3 film was directly observed and localized 3d spin states of the Fe3+ in the YI...

Atomic and electronic structure of an alloyed topological insulator, Bi1.5Sb0.5Te1.7Se1.3

Bi2-xSbxTe3-ySey has been argued to exhibit both topological surface states and insulating bulk states, but has not yet been studied with local probes on the atomic scale. Here we report on the atomic and electronic structures of Bi1.5Sb0.5Te1.7Se1.3 studied using scanning tunnelling microscopy (STM) and spectroscopy (STS). Although there is significant surface disorder due to alloying of const...

Topological insulator thin films of Bi2Te3 with controlled electronic structure.

Figure 1 . −K band structure evolution with T Si : a) 560 K (DP = 0.34 eV), b) 580 K (DP = 0.27 eV), c) 600 K (DP = 0.23 eV), d) 625 K (DP = 0.14 eV), and e) 630 K (DP = 0.12 eV). Upper panels show the ARPES intensity maps and lower panels show the corresponding MDC, measured at an interval of 10 meV. Red, purple, and green curves mark E F , VBM, and conduction band minimum (CBM), respectively....

Is it or is it not a pathogenic mutation? Is it or is it not the podocyte?

The EFL Pre-Service Teacher Training in Iran: Is it Adequate or not?

Teacher training programs should provide evidence that they are preparing teacher trainees for their teaching career. However, the literature contains few evaluation reports of the layout of the pre-service EFL teacher training program in Iranian EFL context, a gap which this study tries to fill. The participants of the study were high school EFL teachers (n = 346), teacher trainees (n = 97) an...