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Berlin 2018 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 6: Quantum Magnets and Molecular Magnets (joint session TT/MA)

TT 6.12: Talk

Monday, March 12, 2018, 12:30–12:45, H 3010

Manifestations of a coherent Kondo lattice formed in adatoms — •Richard Korytár1, María Moro Lagares2, and David Serrate31Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic — 2Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic — 3Institute of Nanoscience of Aragon (INA), University of Zaragoza, Spain

In a recent experiment, chains of magnetic adatoms were constructed on a pristine metallic surface. A careful analysis by scanning-tunneling spectroscopy demonstrates that the Kondo screening overtakes magnetic interactions at all accessible chain lengths. A comparison with many-body calculations allows to address diverse real space aspects of the coherent Kondo lattice, such as: overlapping Kondo clouds, long-range mediated hybridization and Fermi surface effects. The phenomenology of the onset of heavy fermions in these systems can be discussed.

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