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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2014, Volume 99, Issue 10, Pages 687–703
DOI: https://doi.org/10.7868/S0370274X14100099
(Mi jetpl3743)
 

This article is cited in 24 scientific papers (total in 24 papers)

SCIENTIFIC SUMMARIES

Electronic structure of new iron-based superconductors: From pnictides to chalcogenides and other similar systems

I. A. Nekrasova, M. V. Sadovskiib

a Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
b Institute of Metal Physics, Ural Division of the Russian Academy of Sciences
References:
Abstract: The electronic spectra of new iron-based high-temperature superconductors and a number of other chemically similar compounds have been discussed and compared with the focus on iron chalcogenide K$_{1-x}$Fe$_{2-y}$Se$_2$ and isostructural pnictide BaFe$_2$As$_2$ (122). It has been shown that the Fermi surfaces in K$_{1-x}$Fe$_{2-y}$Se$_2$ are significantly different from those in pnictides. The LDA + DMFT and LDA’ + DMFT calculations have demonstrated that the effect of electron correlations in K$_{1-x}$Fe$_{2-y}$Se$_2$ on the electronic structure is much stronger than that in the most studied 122 system. The electronic structure of several multiband superconductors similar in chemical composition to iron-based high-temperature superconductors, but having a relatively low $T_c$ value (such as SrPt$_{2}$As$_{2}$, APt$_{3}$P (A = Sr, Ca, La), and (Sr, Ca)Pd$_2$As$_2$), and the non-superconducting compound BaFe$_2$Se$_3$ has also been discussed. It has been shown that the electronic structure of these systems is significantly different from previously studied iron pnictides and chalcogenides. The $T_c$ value in these systems can be understood within the simple Bardeen–Cooper–Schrieffer model.
Received: 21.04.2014
English version:
Journal of Experimental and Theoretical Physics Letters, 2014, Volume 99, Issue 10, Pages 598–612
DOI: https://doi.org/10.1134/S0021364014100075
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: I. A. Nekrasov, M. V. Sadovskii, “Electronic structure of new iron-based superconductors: From pnictides to chalcogenides and other similar systems”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:10 (2014), 687–703; JETP Letters, 99:10 (2014), 598–612
Citation in format AMSBIB
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\paper Electronic structure of new iron-based superconductors: From pnictides to chalcogenides and other similar systems
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\pages 687--703
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  • This publication is cited in the following 24 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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