Surface dominated magnetotransport in Bi<inf>2</inf>Te<inf>2.15</inf>Se 0.85 topological insulator
Artikel i vetenskaplig tidskrift, 2018

Topological insulators (TIs) represent a new state of matter possessing an attractive surface spin texture with possible applications in quantum computation and spintronics. The growth of prototypical TIs such as Bi 2Te 3 and Bi 2Se 3 still remains a major challenge, because of vacancies and defects leading to an unintentional doping of the crystals creating a parallel conduction channel in the bulk. Here, we synthesized the Bi 2Te 2.15Se 0.85 (BTS) TI using a modified Bridgeman technique. Magnetotransport studies at different angles and temperatures of the device made on thin (BTS) flakes reveal the 2D nature of the weak antilocalization signal and surface dominated transport properties at low temperatures.

Författare

Bushra Irfan

Indian Institute of Technology Delhi

Aligarh Muslim University

André Dankert

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Priyamvada Bhasker

Chalmers, Mikroteknologi och nanovetenskap (MC2)

Dmitrii Khokhriakov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Saroj Prasad Dash

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Ratnamala Chatterjee

Indian Institute of Technology Delhi

Journal of Applied Physics

0021-8979 (ISSN) 1089-7550 (eISSN)

Vol. 124 21 5051478

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1063/1.5051478

Mer information

Senast uppdaterat

2019-01-07