6 papers
Kondo-transport spectroscopy of single molecule magnets
C. Romeike, M. R. Wegewijs, W. Hofstetter +1
We demonstrate that in a single molecule magnet (SMM) strongly coupled to electrodes the Kondo effect involves all magnetic excitations. This Kondo effect is induced by the quantum…
Quantum tunneling induced Kondo effect in single molecular magnets
C. Romeike, M. R. Wegewijs, W. Hofstetter +1
We consider transport through a single-molecule magnet strongly coupled to metallic electrodes. We demonstrate that for half-integer spin of the molecule electron- and spin-tunneli…
Spin quantum tunneling in single molecular magnets: fingerprints in transport spectroscopy of current and noise
C. Romeike, M. R. Wegewijs, H. Schoeller
We demonstrate that transport spectroscopy of single molecular magnets shows signatures of quantum tunneling at low temperatures. We find current and noise oscillations as function…
Electron transport through single Mn12 molecular magnets
H. B. Heersche, Z. de Groot, J. A. Folk +7
We report transport measurements through a single-molecule magnet, the Mn12 derivative [Mn12O12(O2C-C6H4-SAc)16(H2O)4], in a single-molecule transistor geometry. Thiol groups conne…
Charge-induced maximal spin states of a polynuclear transition-metal complex
C. Romeike, M. R. Wegewijs, M. Ruben +2
We theoretically investigate the ground state spin of a polynuclear transition-metal complex as a function of the number of added electrons taking into account strong electron corr…
Spin blockade in a charge-switchable molecular magnet
C. Romeike, M. R. Wegewijs, H. Schoeller
We consider the effect of adding electrons to a single molecule on its magnetic properties and the resulting transport fingerprints. We analyze a generic model for a metal-organic…