Localization and Directionality of Surface Transport in Bi₂Te₃ Ordered 3D Nanonetworks.

ABSTRACT: The resistance of an ordered 3D-Bi₂Te₃ nanowire nanonetwork was studied at low temperatures. Below 50 K the increase in resistance was found to be compatible with the Anderson model for localization, considering that conduction takes place in individual parallel channels across the whole sample. Angle-dependent magnetoresistance measurements showed a distinctive weak antilocalization characteristic with a double feature that we could associate with transport along two perpendicular directions, dictated by the spatial arrangement of the nanowires. The coherence length obtained from the Hikami-Larkin-Nagaoka model was about 700 nm across transversal nanowires, which corresponded to approximately 10 nanowire junctions. Along the individual nanowires, the coherence length

SUBMITTER: Ruiz-Clavijo A 

PROVIDER: S-EPMC10510701 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature