@article{f52e0e3b552f49969f6b89b2e1425fef,
title = "Scanning tunneling microscopy of superconducting topological surface states in Bi2Se3",
abstract = "In this Rapid Communication we present scanning tunneling microscopy of a large Bi2Se3 crystal with superconducting PbBi islands deposited on the surface. Local density of states measurements are consistent with induced superconductivity in the topological surface state with a coherence length of order 540 nm. At energies above the gap the density of states exhibits oscillations due to scattering caused by a nonuniform order parameter. Strikingly, the spectra taken on islands also display similar oscillations along with traces of the Dirac cone, suggesting an inverse topological proximity effect.",
author = "Dayton, {Ian M.} and Nicholas Sedlmayr and Victor Ramirez and Chasapis, {Thomas C.} and Reza Loloee and Kanatzidis, {Mercouri G.} and Alex Levchenko and Tessmer, {Stuart H.}",
note = "Funding Information: This work at University of Wisconsin-Madison (A.L.) was financially supported in part by NSF Grants No. DMR-1606517, No. ECCS-1560732, and BSF Grant No. 2014107, and the Wisconsin Alumni Research Foundation. The work at Northwestern University was supported by the Department of Energy, Office of Science Basic Energy Sciences Grant No. DE-SC0014520. I.M.D. acknowledges fellowship support from the Department of Education through GAANN Award No. USDE P200A140215 and from the Peter Schroeder Endowment. Sample and tip preparations were carried out in the Keck Microfabrication Facility at Michigan State University. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = jun,
day = "20",
doi = "10.1103/PhysRevB.93.220506",
language = "English",
volume = "93",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "22",
}