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

Autor(en)

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

Abstrakt

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(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Max-Planck-Institut für Mikrostrukturphysik, Universität zu Köln, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Saint Petersburg State University, Lomonosov Moscow State University (MSU), Johann Wolfgang Goethe-Universität Frankfurt am Main, Elettra Sincrotrone Trieste, Technische Universität Dresden, Università degli Studi dell’Aquila

Journal

2D Materials

Band

3

Anzahl der Seiten

6

ISSN

2053-1583

DOI

https://doi.org/10.1088/2053-1583/3/2/025031

Publikationsdatum

06-2016

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Mechanics of Materials, Mechanical Engineering, Allgemeine Chemie, Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a364631a-0625-4992-87f7-c2b2e0e8da95