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Theoretical study on the anisotropic electronic structure of antiferromagnetic BaFe2As2 and Co-doped Ba(Fe1MINUS SIGN xCox)2As2 as seen by angle-resolved photoemission

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F16%3A43929038" target="_blank" >RIV/49777513:23640/16:43929038 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1103/PhysRevB.93.144513" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.93.144513</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevB.93.144513" target="_blank" >10.1103/PhysRevB.93.144513</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Theoretical study on the anisotropic electronic structure of antiferromagnetic BaFe2As2 and Co-doped Ba(Fe1MINUS SIGN xCox)2As2 as seen by angle-resolved photoemission

  • Original language description

    By means of one-step model calculations the strong in-plane anisotropy seen in angle-resolved photoemission of the well-known iron pnictide prototype compounds BaFe2 As2 and Ba(Fe1MINUS SIGN xCox )2 As2 in their low-temperature antiferromagnetic phases is investigated. The fully relativistic calculations are based on the Korringa-Kohn- Rostoker-Green function approach combined with the coherent potential approximation alloy theory to account for the disorder induced by Co substitution on Fe sites in a reliable way. The results of the calculations can be compared directly to experimental spectra of detwinned single crystals. One finds very good agreement with experiment and can reveal all features of the electronic structure contributing to the in-plane anisotropy. In particular the local density approximation can capture most of the correlation effects for the investigated system without the need for more advanced techniques. In addition, the evolution of the anisotropy for increasing Co concentration x in Ba(Fe1MINUS SIGN x Cox )2 As2 can be tracked almost continuously. The results are also used to discuss surface effects and it is possible to identify clear signatures to make conclusions about different types of surface termination.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review B

  • ISSN

    2469-9950

  • e-ISSN

  • Volume of the periodical

    93

  • Issue of the periodical within the volume

    14

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    '144513-1'-144513-10'

  • UT code for WoS article

    000374943900008

  • EID of the result in the Scopus database

    2-s2.0-84964597407