Abstract
We present an experimental and theoretical study of a magnetic single-molecule transistor based on connected to gold electrodes. Particular attention is paid to the regime of intermediate molecule-lead coupling, where cotunneling effects manifest themselves in the Coulomb-blockade regime. The experimental results for the differential conductance as a function of bias, gate voltage, and external magnetic field are in agreement with our analysis of the tunneling rates and provide evidence of magnetic signatures in single- devices arising from an antiferromagnetic exchange interaction between the spin and the nitrogen spin.
- Received 29 December 2010
DOI:https://doi.org/10.1103/PhysRevB.83.081407
©2011 American Physical Society