First-principles and angle-resolved photoemission study of lithium doped metallic black phosphorous

Author(s)
A. Sanna, A. V. Fedorov, N. I. Verbitskiy, J. Fink, C. Krellner, L. Petaccia, A. Chikina, D. Yu Usachov, A. Grueneis, G. Profeta
Abstract

First principles calculations demonstrate the metallization of phosphorene by means of Li doping filling the unoccupied antibonding p(z) states. The electron-phonon coupling in the metallic phase is strong enough to eventually lead to a superconducting phase at T-c = 17 K for LiP8 stoichiometry. Using angle-resolved photoemission spectroscopy we confirm that the surface of black phosphorus can be chemically functionalized using Li atoms which donate their 2s electron to the conduction band. The combined theoretical and experimental study demonstrates the semiconductor-metal transition indicating a feasible way to induce a superconducting phase in phosphorene and few-layer black phosphorus.

Organisation(s)
Electronic Properties of Materials
External organisation(s)
Max Planck Institute of Microstructure Physics, Universität zu Köln, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Saint Petersburg State University, Anuchin Research Institute and Museum of Anthropology, Johann Wolfgang Goethe-Universität Frankfurt am Main, Elettra─Sincrotrone Trieste, Technische Universität Dresden, Università degli Studi dell’Aquila
Journal
2D Materials
Volume
3
No. of pages
6
ISSN
2053-1583
DOI
https://doi.org/10.1088/2053-1583/3/2/025031
Publication date
06-2016
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Keywords
ASJC Scopus subject areas
Condensed Matter Physics, Mechanics of Materials, Mechanical Engineering, Chemistry(all), Materials Science(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/firstprinciples-and-angleresolved-photoemission-study-of-lithium-doped-metallic-black-phosphorous(a364631a-0625-4992-87f7-c2b2e0e8da95).html