Berlin 2018 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 53: Quantum Impurities and Kondo Physics

TT 53.6: Vortrag

Mittwoch, 14. März 2018, 10:45–11:00, HFT-FT 131

Dimensional crossover in molecular Kondo systems — •Marcin Raczkowski and Fakher Assaad — Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany

Advances in scanning tunneling microscopy allow nowadays for the atomically precise engineering of Kondo nanosystems ranging from a single impurity to lattice Kondo situations with a dominant Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction between the individual magnetic atoms. Here, starting with a single magnetic impurity deposited on the metallic surface, we perform auxiliary-field quantum Monte Carlo simulations of the Kondo lattice model and elucidate necessary conditions for the emergence of the Kondo lattice behavior in a nanosystem composed of a few magnetic atoms only.