Valley pseudospin relaxation of charged excitons in monolayer MoTe2

Journal of Physics: Condensed Matter Paper Valley pseudospin relaxation of charged excitons in monolayer MoTe2 T Smoleński1,2 , T Kazimierczuk4,1, M Goryca1, K Nogajewski1, M Potemski1,3 and P Kossacki1 Published 13 October 2020 • © 2020 IOP Publishing Ltd Journal of Physics: Condensed Matter, Volume 33, Number 2 Citation T Smoleński et al 2021 J. Phys.: Condens. Matter 33 025701 Download Article PDF Figures References Download PDF 208 Total downloads Article has an altmetric score of 1 Turn on MathJax Get permission to re-use this article Share this article Share this content via email Share on Facebook Share on Twitter Share on Google+ Share on Mendeley Hide article information Author e-mails Tomasz.Kazimierczuk@fuw.edu.pl Author affiliations 1 Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland 2 Institute for Quantum Electronics, ETH Zurich, CH-8093 Zurich, Switzerland 3 Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25 rue des Martyrs, 38042 Grenoble, France Author notes 4 Author to whom any correspondence should be addressed. ORCID iDs T Smoleński https://orcid.org/0000-0002-4706-7777 T Kazimierczuk https://orcid.org/0000-0001-6545-4167 M Goryca https://orcid.org/0000-0001-7582-1880 K Nogajewski https://orcid.org/0000-0001-8839-5032 M Potemski https://orcid.org/0000-0001-8881-6618 P Kossacki https://orcid.org/0000-0002-7558-1044 Dates Received 28 May 2020 Revised 6 August 2020 Accepted 24 August 2020 Published 13 October 2020 Check for updates using Crossmark Peer review information Method: Single-anonymous Revisions: 1 Screened for originality? Yes DOI https://doi.org/10.1088/1361-648X/abb1cb Buy this article in print Journal RSS Sign up for new issue notifications Create citation alert Abstract Zeeman effect induced by the magnetic field introduces a splitting between the two valleys at K+ and K− points of the Brillouin zone in monolayer semiconducting transition metal dichalcogenides. In consequence, the photoluminescence signal exhibits a field dependent degree of circular polarization. We present a comprehensive study of this effect in the case of a trion in monolayer MoTe2, showing that although time integrated data allows us to deduce a g-factor of the trion state, such an analysis cannot be substantiated by the timescales revealed in the time-resolved experiments.