Growth of Antimony Telluride and Bismuth Selenide Topological Insulator Nanowires

Production and Characterization of Topological Insulators

Topological insulators (TIs) represent a novel category of material whose bulk insulates, but whose surface conducts. The ability to produce topological insulators would be of great interest, because electron states can cross the insulating band gap, as well as surface conduction and spin-locking properties [1]. Bismuth selenide (Bi2Se3) is one of the best candidates for three dimensional (3D) ...

Thermoelectric power factor of ternary single-crystalline Sb2Te3- and Bi2Te3-based nanowires.

Nanowires of bismuth antimony telluride and bismuth telluride selenide (Bi15Sb29Te56 and Bi38Te55Se7) were grown by template-based pulsed electrodeposition. The composition and the crystallinity of the nanowires were determined by high-resolution transmission electron microscopy. The thermoelectric properties (Seebeck coefficient and electrical conductivity) of single p- and n-type nanowires, w...

Structural properties of Bi2Te3 and Bi2Se3 topological insulators grown by molecular beam epitaxy on GaAs(001) substrates

Crystal growth and anomalous transport properties of CuxBi2Se3

Topological insulators (TIs) have received considerable attention due to their potential to offer new platforms for the realization of novel states of quantum maters. TIs are characterized by their fully insulating gap in the bulk but necessarily gapless edge or surface states protected by time-reversal symmetry. Recently, the three-dimensional (3D) TIs were theoretically predicted and discover...

The quantum spin Hall effect and topological insulators

form many different states of matter, such as crystalline solids, magnets, and superconductors. Those different states can be classified by the symmetries they spontaneously break— translational, rotational, and gauge symmetries, respectively, for the examples above. Before 1980 all states of matter in condensed-matter systems could be classified by the principle of broken symmetry. The quantum...