Universität zu Köln

Sanna, A., Fedorov, A. V., Verbitskiy, N. I., Fink, J., Krellner, C., Petaccia, L., Chikina, A., Usachov, D. Yu., Grüneis, A. and Profeta, G. (2016). First-principles and angle-resolved photoemission study of lithium doped metallic black phosphorous. 2D Materials, 3 (2). 025031. IOP Publishing. ISSN 2053-1583

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Abstract

First principles calculations demonstrate the metallization of phosphorene by means of Li doping filling the unoccupied antibonding pz states. The electron–phonon coupling in the metallic phase is strong enough to eventually lead to a superconducting phase at Tc= 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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sanna, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fedorov, A. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Verbitskiy, N. I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fink, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Krellner, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Petaccia, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chikina, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Usachov, D. Yu. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grüneis, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Profeta, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-81506
DOI:	10.1088/2053-1583/3/2/025031
Journal or Publication Title:	2D Materials
Volume:	3
Number:	2
Page Range:	025031
Date:	8 June 2016
Publisher:	IOP Publishing
ISSN:	2053-1583
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects:	Natural sciences and mathematics Physics
Funders:	European Community Seventh Framework Program (FP7/2007–2013) under grant agreement n.312284 (CALIPSO), ERC grant no. 648589 SUPER-2D, DFG project GR 3708-2/1, EU-Japan project (No. 283204 SUPER-IRON), Saint Petersburg State University (research Grant No. 15.61.202.2015)
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/8150