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We used angle-resolved photoemission spectroscopy (ARPES) and densityfunctional theory calculations to study the electronic structure ofBa(Fe1-x-yCoxMny)2As2 for x=0.06 and 0<=y <=0.07. From ARPES we derive that thesubstitution of Fe by Mn does not lead to hole doping, indicating alocalization of the induced holes. An evaluation of the measured spectralfunction does not indicate a diverging effective mass or scattering rate nearoptimal doping. Thus the present ARPES results indicate a continuous evolutionof the quasiparticle interaction and therefore question previous quantumcritical scenarios.

Electronic structure and quantum criticality in Ba(Fe$_{1-x-y}$Co$_{x}$Mn$_{y}$)$_{2}$As$_{2}$, an ARPES study