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Valley polarization of singlet and triplet trions in a WS(2)monolayer in magnetic fields

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10415420" target="_blank" >RIV/00216208:11320/20:10415420 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26620/20:PU138189

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=g_RQhgCcz6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=g_RQhgCcz6</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1039/d0cp02737e" target="_blank" >10.1039/d0cp02737e</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Valley polarization of singlet and triplet trions in a WS(2)monolayer in magnetic fields

  • Original language description

    The spectral signatures associated with different negatively charged exciton complexes (trions) in a WS(2)monolayer encapsulated in hBN are analyzed from low temperature and polarization resolved reflectance contrast (RC) and photoluminescence (PL) experiments, with an applied magnetic field. Based on results obtained from the RC experiment, we show that the valley Zeeman effect affects the optical response of both the singlet and the triplet trion species through the evolution of their energy and of their relative intensity, when applying an external magnetic field. Our analysis allows us to estimate a free electron concentration of similar to 1.3 x 10(11)cm(-2). The observed evolutions based on PL experiments on the same sample are different and can hardly be understood within the same simple frame, highlighting the complexity of relaxation processes involved in the PL response.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    <a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Chemistry Chemical Physics

  • ISSN

    1463-9076

  • e-ISSN

  • Volume of the periodical

    22

  • Issue of the periodical within the volume

    34

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    7

  • Pages from-to

    19155-19161

  • UT code for WoS article

    000567772700035

  • EID of the result in the Scopus database

    2-s2.0-85090870318