%0 Journal Article
%T Temperature dependence of electronic transport through molecular magnets in the Kondo regime
%A Maciej Misiorny
%A Ireneusz Weymann
%A J¨®zef Barna£¿
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevB.86.035417
%X The effects of finite temperature in transport through nanoscopic systems exhibiting uniaxial magnetic anisotropy D, such as molecular magnets, adatoms, or quantum dots side-coupled to a large spin are analyzed in the Kondo regime. The linear-response conductance is calculated by means of the full density-matrix numerical renormalization group method as a function of temperature T, magnetic anisotropy D, and exchange coupling J between the molecule's core spin and the orbital level. It is shown that such system displays a two-stage Kondo effect as a function of temperature and a quantum phase transition as a function of the exchange coupling J. Moreover, additional peaks are found in the linear conductance for temperatures of the order of T\sim|J| and T\simD. It is also shown that the conductance variation with T remarkably depends on the sign of the exchange coupling J.
%U http://arxiv.org/abs/1206.6069v2