The quasiparticle interference of the spectroscopic imaging scanning tunneling microscopy has been investigated for the surface states of the large gap topological insulator Bi2Te3 through the T-matrix formalism. Both the scalar-potential scattering and the spin-orbit scattering on the warped hexagonal isoenergy contour are considered. While backscatterings are forbidden by time-reversal symmet...

topological surface states in metallic Bi2Te3 topological insulator K. Shrestha1,∗ and M. Chou, D. Graf, H. D. Yang, B. Lorenz and C. W. Chu Idaho National Laboratory, 2525 Fremont Ave, Idaho Falls, Idaho, 83402, USA Department of Materials and Optoelectronic Science, National Sun Yat Sen University, Taiwan National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida ...

The state-of-the-art Bismuth-Telluride (Bi2Te3) based systems are promising thermoelectric materials for efficient applications. In this study, the effect of graphene nanosheets (GNS) integrity on properties a p-type Bi0.4Sb1.6Te3 alloy has been studied using high-energy ball milling and SPS sintering techniques. synthesized pristine 0.05wt% GNS/Bi0.4Sb1.6Te3 nanocomposites at different additio...

Bismuth telluride nanowires are of interest for thermoelectric applications because of the predicted enhancement in the thermoelectric figure-of-merit in nanowire structures. In this letter, we carried out temperature-dependent thermal diffusivity characterization of a 40 nm diameter Bi2Te3 nanowires/alumina nanocomposite. Measured thermal diffusivity of the composite decreases from 9.2310−7 m2...

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We developed a water-free atomic layer deposition (ALD) process to homogeneously deposit SbOx using SbCl5 and Sb-Ethoxide as precursors, report it here for the first time. The coating is applied on Bi2Te3 particles synthesized via solvothermal route enhance thermoelectric properties (i.e., Seebeck coefficient, thermal electrical conductivity) interface engineering. amorphous character of was sh...