Resolving ambiguity of the Kondo temperature determination in mechanically tunable single-molecule Kondo systems

0549100 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Žonda, M. - Stetsovych, Oleksandr - Korytár, R. - Ternes, M. - Temirov, R. - Raccanelli, A. - Tautz, F.S. - Jelínek, Pavel - Novotný, T. - Švec, Martin
Resolving ambiguity of the Kondo temperature determination in mechanically tunable single-molecule Kondo systems.
Journal of Physical Chemistry Letters. Roč. 12, č. 27 (2021), s. 6320-6325. ISSN 1948-7185
Grant CEP: GA ČR GJ17-24210Y; GA ČR(CZ) GX20-13692X; GA MŠMT LM2018110
Grant ostatní: AV ČR(CZ) AP1601
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378271
Klíčová slova: SPM * Kondo * magnetic properties * NRG
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 6.888, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1021/acs.jpclett.1c01544

We show how this ambiguity can be resolved if additional control parameters are present, such as magnetic field and mechanical gating. We record the evolution of the differential conductance by lifting an individual molecule from the metal surface with the tip of a scanning tunneling microscope. By fitting the measured conductance spectra with the single impurity Anderson model we are able to demonstrate that the lifting tunes the junction continuously from the strongly correlated Kondo-singlet to the free spin-1/2 ground state.
Trvalý link: http://hdl.handle.net/11104/0325120