title: Quantum Electronic Transport of Topological Surface States in β-Ag2Se Nanowire.
abstract: Single-crystalline β-Ag2Se nanostructures, a new class of 3D topological insulators (TIs), were synthesized using the chemical vapor transport method. The topological surface states were verified by measuring electronic transport properties including the weak antilocalization effect, Aharonov-Bohm oscillations, and Shubnikov-de Haas oscillations. First-principles band calculations revealed that the band inversion in β-Ag2Se is caused by strong spin-orbit coupling and Ag-Se bonding hybridization. These investigations provide evidence of nontrivial surface state about β-Ag2Se TIs that have anisotropic Dirac cones.
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Korea.
authors.forename: Jihwan
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Korea.
authors.forename: Ahreum
authors.initials: A
authors.lastname: Hwang
authors.affiliation: Department of Physics, Pohang University of Science and Technology , Pohang 37673, Korea.
authors.forename: Sang-Hoon
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Department of Physics, Pohang University of Science and Technology , Pohang 37673, Korea.
authors.forename: Seung-Hoon
authors.initials: SH
authors.lastname: Jhi
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Korea.
authors.forename: Sunghun
authors.initials: S
authors.lastname: Lee
authors.affiliation: Department of Measurement and Analysis, National Nanofab Center , Daejeon 34141, Korea.
authors.forename: Yun Chang
authors.initials: YC
authors.lastname: Park
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Korea.
authors.forename: Si-In
authors.initials: SI
authors.lastname: Kim
authors.affiliation: Department of Physics and Photon Science, School of Physics and Chemistry, Gwangju Institute of Science and Technology (GIST) , Gwangju 61005, Korea.
authors.forename: Hong-Seok
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Physics and Photon Science, School of Physics and Chemistry, Gwangju Institute of Science and Technology (GIST) , Gwangju 61005, Korea.
authors.forename: Yong-Joo
authors.initials: YJ
authors.lastname: Doh
authors.affiliation: Korea Research Institute of Standards and Science , Daejeon 34113, Korea.
authors.forename: Jinhee
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Korea.
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Kim
keywords: Aharonov−Bohm oscillation; Shubnikov−de Haas oscillation; anisotropic topological insulator; band inversion; weak antilocalization; β-Ag2Se nanowire