Accueil > Agenda Scientifique

16 juillet 2018: 1 événement

séminaire

  • Conduction and localization in two-dimensional disordered systems

    Lundi 16 juillet 14:00-15:00 - Miguel Ortuño - Universidad de Murcia

    Conduction and localization in two-dimensional disordered systems

    Résumé : We review the properties of disordered systems with enough disorder to have all states localized. In this case, conduction is by variable-range hopping and interactions between carriers are generally very important, affecting the exponent in the variable-range hopping law. Two-dimensional systems are special : the localization length varies exponentially with disorder and interactions can be very long-range, depending logarithmically on distance.
    We present experimental results on finite thickness samples which show an exponential dependence of the localization length with thickness and numerical simulations that fit these results fairly well. Our results can be relevant in the insulating side of the SIT and on delocalization transitions in general.

    Lieu : Grand Amphi RDC @ LPS, bât 510

    En savoir plus : Conduction and localization in two-dimensional disordered systems