Spin blockade in a charge-switchable molecular magnet
| dc.creator | Romeike, C. | |
| dc.creator | Wegewijs, M. R. | |
| dc.creator | Schoeller, H. | |
| dc.date | 2005-02-03 | |
| dc.date.accessioned | 2026-07-07T03:03:35Z | |
| dc.date.available | 2026-07-07T03:03:35Z | |
| dc.description | 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 complex consisting of orbitals with different Coulomb repulsions. We find that by modulating the charge of the molecule by a single electron the total spin can be switched from zero to the maximal value supported by the added electrons, $S=3/2$. The Nagaoka mechanism is responsible for this charge-sensitivity of the molecular spin. It is shown that fingerprints of these maximal spin states, either as groundstates or low-lying excitations, can be experimentally observed in current-spectroscopy. as either spin blockade at low bias voltage or negative differential conductance and complete current suppression at finite bias. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0502091 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0502091 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/25804 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Spin blockade in a charge-switchable molecular magnet | |
| dc.type | text |