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    Pressure-Induced Two-Color Photoluminescence in MnF2 at Room Temperature

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    PRL-MnF2.pdf (640.4Kb)
    Identificadores
    URI: http://hdl.handle.net/10902/506
    DOI: 10.1103/PhysRevLett.99.027403
    ISSN: 0031-9007
    ISSN: 1079-7114
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    Author
    Hernández Campo, IgnacioAutoridad Unican; Rodríguez González, FernandoAutoridad Unican; Hochheimer, Hans D.
    Date
    2007-07
    Derechos
    © The American Physical Society
    Publicado en
    Physical Review Letters, Vol. 99, article number 027403, 2007
    Publisher
    American Physical Society
    Enlace a la publicación
    http://dx.doi.org/10.1103/PhysRevLett.99.027403
    Abstract:
    A novel two-color photoluminescence (PL) is found in MnF2 at room temperature under high pressure. Contrary to low-temperature PL, PL at room temperature is unusual in transition-metal concentrated materials like MnF2, since the deexcitation process at room temperature is fully governed by energy transfer to nonradiative centers. We show that room-temperature PL in MnF2 originates from two distinct Mn2 emissions in the high-pressure cotunnite phase. The electronic structure and the excited-state dynamics are investigated by time-resolved emission and excitation spectroscopy at high pressure.
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    UNIVERSIDAD DE CANTABRIA

    Repositorio realizado por la Biblioteca Universitaria utilizando DSpace software
    Contact Us | Send Feedback
    Metadatos sujetos a:licencia de Creative Commons Reconocimiento 3.0 España