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  • 1
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    Theory of electronic and spin-orbit proximity effects in graphene on Cu(111) (2016)
    American Physical Society (APS)
    Details
    Publication Date: 2016-04-23
    Description: Author(s): Tobias Frank, Martin Gmitra, and Jaroslav Fabian We study orbital and spin-orbit proximity effects in graphene adsorbed to the Cu(111) surface by means of density functional theory (DFT). The proximity effects are caused mainly by the hybridization of graphene π and copper d orbitals. Our electronic structure calculations agree well with the exper… [Phys. Rev. B 93, 155142] Published Fri Apr 22, 2016
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Excitonic Stark effect in MoS_{2} monolayers (2016)
    American Physical Society (APS)
    Details
    Publication Date: 2016-12-28
    Description: Author(s): Benedikt Scharf, Tobias Frank, Martin Gmitra, Jaroslav Fabian, Igor Žutić, and Vasili Perebeinos We theoretically investigate excitons in MoS 2 monolayers in an applied in-plane electric field. Tight-binding and Bethe-Salpeter equation calculations predict a quadratic Stark shift, of the order of a few meV for fields of 10 V/ μ m , in the linear absorption spectra. The spectral weight of the main e… [Phys. Rev. B 94, 245434] Published Tue Dec 27, 2016
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 3
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    ESA DUE Permafrost: An Earth observation (EO) permafrost monitoring system (2011)
    EARSeL-logo EARSeL European Association of Remote Sensing Laboratories
    In:  EPIC3EARSeL eProceedings, EARSeL-logo EARSeL European Association of Remote Sensing Laboratories, 10(2), pp. 73-82, ISSN: 1729-3782
    Details
    Publication Date: 2019-07-16
    Description: The task of the ESA Data User Element (DUE) Permafrost project is to build up an Earth Observation service for permafrost applications with extensive involvement of the permafrost research community. The DUE Permafrost remote sensing products are ‘Land Surface Temperature’ (LST), ‘Surface Soil Moisture’ (SSM), ‘Frozen/ Thawed Surface Status’ (Freeze/Thaw), ‘Terrain’, ‘Land Cover’ (LC), and ‘Surface Waters’. A major component is the evaluation of the DUE Permafrost products to test their scientific validity for high-latitude permafrost landscapes. There are no standard evaluation methods for this range of remote sensing products, specifically not for these latitudes. Evaluation experiments and inter-comparison is done on a case-by-case basis, adding value and experience in validating products for these regions. A significant challenge in the evaluation of remote sensing products for high-latitude permafrost landscapes are the very sparse ground data. We rely on ground data provided by the Users and by international programmes. The primary international programme is the Global Terrestrial Network for Permafrost (GTN-P) initiated by the International Permafrost Association (IPA). Leading projects are the networks of the ‘Circumpolar Active Layer Monitoring’ (CALM) and the ‘Thermal State of Permafrost’ (TSP). Prime sites for testing methods and scaling are the long-term Russian-German Samoylov Station in the Lena River Delta (Arctic Siberia), and the tundra and taiga-tundra transition regions in Western Siberia (RU). The results of the first evaluations of LST, SSM and Freeze/ Thaw using GTN-P and User’s data show the usability of the DUE Perma-frost products for high-latitude permafrost landscapes. The DUE Permafrost remote sensing products will be adapted as drivers, validation data and as newly available external input data for permafrost and climate models.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
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