title: Surface-energy engineered Bi-doped SnTe nanoribbons with weak antilocalization effect and linear magnetoresistance.
abstract: The rational design of semiconductor nanocrystals with well-defined surfaces is a crucial step towards the realization of next-generation photodetectors, and thermoelectric and spintronic devices. SnTe nanocrystals, as an example, are particularly attractive as a type of topological crystalline insulator, where surface facets determine their surface states. However, most of the available SnTe nanocrystals are dominated by thermodynamically stable {100} facets, and it is challenging to grow uniform nanocrystals with {111} facets. In this study, guided by surface-energy calculations, we employ a chemical vapour deposition approach to fabricate Bi doped SnTe nanostructures, in which their surface facets are tuned by Bi doping. The obtained Bi doped SnTe nanoribbons with distinct {111} surfaces show a weak antilocalization effect and linear magnetoresistance under high magnetic fields, which demonstrate their great potential for future spintronic applications.
authors.affiliation: Materials Engineering, University of Queensland, Brisbane, QLD 4072, Australia. j.zou@uq.edu.au zhigang.chen@uq.edu.au.
authors.forename: Yi-Chao
authors.initials: YC
authors.lastname: Zou
authors.affiliation: Materials Engineering, University of Queensland, Brisbane, QLD 4072, Australia. j.zou@uq.edu.au zhigang.chen@uq.edu.au and Centre for Future Materials, University of Southern Queensland, Springfield, QLD 4300, Australia.
authors.forename: Zhi-Gang
authors.identifier: http://orcid.org/0000-0002-9309-7993
authors.initials: ZG
authors.lastname: Chen
authors.affiliation: Department of Materials Science & Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA.
authors.forename: Fantai
authors.identifier: http://orcid.org/0000-0003-0001-9193
authors.initials: F
authors.lastname: Kong
authors.affiliation: Key Laboratory of Surface Physics and Department of Physics, and Collaborative Innovation Center of Advanced Microstructures, Fudan University, Shanghai 200433, China.
authors.forename: Enze
authors.initials: E
authors.lastname: Zhang
authors.affiliation: Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia.
authors.forename: John
authors.initials: J
authors.lastname: Drennan
authors.affiliation: Department of Materials Science & Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA.
authors.forename: Kyeongjae
authors.initials: K
authors.lastname: Cho
authors.affiliation: Key Laboratory of Surface Physics and Department of Physics, and Collaborative Innovation Center of Advanced Microstructures, Fudan University, Shanghai 200433, China.
authors.forename: Faxian
authors.initials: F
authors.lastname: Xiu
authors.affiliation: Materials Engineering, University of Queensland, Brisbane, QLD 4072, Australia. j.zou@uq.edu.au zhigang.chen@uq.edu.au and Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia.
authors.forename: Jin
authors.initials: J
authors.lastname: Zou