Quantum size effects in Pb layers with absorbed Kondo adatoms: Determination of the exchange coupling constant
arXiv:0906.2940 · doi:10.1103/PhysRevB.80.033101
Abstract
We consider the magnetic interaction of manganese phtalocyanine (MnPc) absorbed on Pb layers which were grown on a Si substrate. We perform an ab-initio calculation of the density of states and Kondo temperature as function of the number of Pb monolayers. Comparison to experimental data [Phys. Rev. Lett. 99, 256601 (2007)] then allows us to determine the exchange coupling constant J between the spins of the adsorbed molecules and those of the Pb host. This approach gives rise to a general and reliable method for obtaining J, by combining experimental and numerical results.
Accepted for publication in Phys. Rev. B as Brief Report
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