{ "id": "1301.4365", "version": "v2", "published": "2013-01-18T12:32:32.000Z", "updated": "2013-06-28T14:55:37.000Z", "title": "Electronic structure and quantum criticality in Ba(Fe$_{1-x-y}$Co$_{x}$Mn$_{y}$)$_{2}$As$_{2}$, an ARPES study", "authors": [ "E. D. L. Rienks", "T. Wolf", "K. Koepernik", "I. Avigo", "P. Hlawenka", "C. Lupulescu", "T. Arion", "F. Roth", "W. Eberhardt", "U. Bovensiepen", "J. Fink" ], "comment": "Revised version 5 pages, 3 figures", "journal": "EPL 103, 47004 (2013)", "doi": "10.1209/0295-5075/103/47004", "categories": [ "cond-mat.supr-con", "cond-mat.str-el" ], "abstract": "We used angle-resolved photoemission spectroscopy (ARPES) and density functional theory calculations to study the electronic structure of Ba(Fe1-x-yCoxMny)2As2 for x=0.06 and 0<=y <=0.07. From ARPES we derive that the substitution of Fe by Mn does not lead to hole doping, indicating a localization of the induced holes. An evaluation of the measured spectral function does not indicate a diverging effective mass or scattering rate near optimal doping. Thus the present ARPES results indicate a continuous evolution of the quasiparticle interaction and therefore question previous quantum critical scenarios.", "revisions": [ { "version": "v2", "updated": "2013-06-28T14:55:37.000Z" } ], "analyses": { "keywords": [ "electronic structure", "quantum criticality", "arpes study", "density functional theory calculations", "quantum critical scenarios" ], "tags": [ "journal article" ], "publication": { "journal": "EPL (Europhysics Letters)", "year": 2013, "month": "Aug", "volume": 103, "number": 4, "pages": 47004 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013EL....10347004R" } } }