Phys. Rev. B 81, 104512 (2010) [7 pages]Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2−xCoxAs2 from angle-resolved photoemission spectroscopyReceived 30 September 2009; revised 15 February 2010; published 12 March 2010 From a combination of high resolution angle-resolved photoemission spectroscopy and density functional calculations, we derive information on the dimensionality and the orbital character of the electronic states of BaFe2−xCoxAs2. Upon increasing Co doping, the electronic states in the vicinity of the Fermi level take on increasingly three-dimensional character. Both the orbital variation with kz and the more three-dimensional nature of the doped compounds have important consequences for the nesting conditions and thus possibly also for the appearance of antiferromagnetic and superconducting phases. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.81.104512
DOI:
10.1103/PhysRevB.81.104512
PACS:
74.70.-b, 74.25.Jb, 79.60.-i, 71.20.-b
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