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Termination-dependent topological surface states of the natural superlattice phase Bi_4Se_3

Gibson, Q. D. and Schoop, L. M. and Weber, A. P. and Ji, Huiwen and Nadj-Perge, S. and Drozdov, I. K. and Beidenkopf, H. and Sadowski, J. T. and Fedorov, A. and Yazdani, A. and Valla, T. and Cava, R. J. (2013) Termination-dependent topological surface states of the natural superlattice phase Bi_4Se_3. Physical Review B, 88 (8). Art. No. 081108. ISSN 1098-0121. doi:10.1103/PhysRevB.88.081108.

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We describe the topological surface states of Bi_4Se_3, a compound in the infinitely adaptive Bi_2-Bi_2Se_3 natural superlattice phase series, determined by a combination of experimental and theoretical methods. Two observable cleavage surfaces, terminating at Bi or Se, are characterized by angle-resolved photoelectron spectroscopy and scanning tunneling microscopy, and modeled by ab initio density functional theory calculations. Topological surface states are observed on both surfaces, but with markedly different dispersions and Kramers point energies. Bi_4Se_3 therefore represents the only known compound with different topological states on differently terminated, easily distinguished and stable surfaces.

Item Type:Article
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URLURL TypeDescription Paper
Nadj-Perge, S.0000-0002-2916-360X
Drozdov, I. K.0000-0002-8185-1194
Additional Information:© 2013 American Physical Society. Received 18 April 2013; published 30 August 2013. The authors acknowledge helpful discussions with B. A. Bernevig and F. Chen. The financial support of the National Science foundation, Grants No. NSF-DMR-0819860 and No. NSF-DMR-1104612, DARPA-SPAWAR Grant No. N6601-11-1-4110, and the ARO MURI program, Grant No. W911NF-12-1-0461, are gratefully acknowledged. The work at Brookhaven was carried out in part at the Center for Functional Nanomaterials and the National Synchrotron Light Source which are supported by the US Department of Energy (DOE), Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. The Advanced Light Source is supported by the US DOE, Office of Basic Energy Sciences, under Contract No.DE-AC02-05CH11231. One of the authors (S.N.-P.) acknowledges support of European Community through the Marie-Curie OEF fellowship.
Funding AgencyGrant Number
Office of Naval Research (ONR)N6601-11-1-4110
Army Research Office (ARO)W911NF-12-1-0461
Department of Energy (DOE)DE-AC02-98CH10886
Department of Energy (DOE)DE-AC02-05CH11231
Marie-Curie FellowshipUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Issue or Number:8
Classification Code:PACS number(s): 71.20.−b, 79.60.Bm, 73.20.−r, 71.70.Ej
Record Number:CaltechAUTHORS:20160113-085622977
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Official Citation:Termination-dependent topological surface states of the natural superlattice phase Bi4Se3 Q. D. Gibson, L. M. Schoop, A. P. Weber, Huiwen Ji, S. Nadj-Perge, I. K. Drozdov, H. Beidenkopf, J. T. Sadowski, A. Fedorov, A. Yazdani, T. Valla, and R. J. Cava Phys. Rev. B 88, 081108(R) (2013) – Published 30 August 2013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63623
Deposited By: Ruth Sustaita
Deposited On:13 Jan 2016 17:20
Last Modified:10 Nov 2021 23:19

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