Seminars

20/03/2019
  • Tim Wehling, Bremen

    20/03/2019  4:00 pm - 5:00 pm
    Niels Bohr Common Room, 97 Brunswick St, Manchester M13 9SR, UK

    Electronic Correlations and Pseudodoping in Two-Dimensional Materials

    Two-Dimensional materials are in most cases not isolated but in direct contact to a substrate or part of vertical heterostructures. In this talk, we discuss how vertical coupling affects the electronic system of correlated two-dimensional materials. We firstly explain the effect of “pseudodoping”, i.e. apparent doping of metallic 2d materials without actual charge transfer, which occurs due to coupling to supporting substrates [1]. We then address the question of how electronic correlations and coupling to substrates can be exploited to switch 2d materials between conductive and insulating states. Examples of 2d Mott insulators [2], twisted bilayer graphene and impurities in 2d semiconductors will be considered.

    References
    [1] B. Shao et al., “Pseudodoping of a metallic two-dimensional material by the supporting substrate”, Nature Comm. 10, 180 (2019).
    [2] E. Kamil et al., “Electronic structure of single layer 1T-NbSe2: interplay of lattice distortions, non-local exchange, and Mott–Hubbard correlations”, JPCM 30 325601 (2018).

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27/03/2019
  • Theory Seminar

    27/03/2019  4:00 pm - 5:00 pm
    Niels Bohr Common Room, 97 Brunswick St, Manchester M13 9SR, UK

    t.b.c.

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03/04/2019
  • No Theory Seminar

    03/04/2019  3:00 pm - 4:00 pm
    Niels Bohr Common Room, 97 Brunswick St, Manchester M13 9SR, UK

    colloquium today

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10/04/2019
  • Ahsan Nazir, Manchester

    10/04/2019  3:00 pm - 4:00 pm
    Niels Bohr Common Room, 97 Brunswick St, Manchester M13 9SR, UK

    t.b.c.

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17/04/2019
  • Theory Seminar

    17/04/2019  3:00 pm - 4:00 pm
    Niels Bohr Common Room, 97 Brunswick St, Manchester M13 9SR, UK

    t.b.c.

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