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Pis'ma v Zh. Èksper. Teoret. Fiz., 2015, Volume 101, Issue 1, Pages 50–53 (Mi jetpl4518)  

This article is cited in 6 scientific papers (total in 6 papers)

CONDENSED MATTER

Electronic and magnetic properties of the new iron-based superconductor [Li$_{1-x}$Fe$_x$OH]FeSe

I. A. Nekrasova, M. V. Sadovskiiba

a Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
b Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg

Abstract: We present the results of paramagnetic LDA band structure calculations: band dispersions, densities of states and Fermi surfaces, for the new iron based high-temperature superconductor LiOHFeSe. Main structural motif providing bands in the vicinity of the Fermi level is FeSe layer which is isostructural to the bulk FeSe prototype superconductor. The bands crossing the Fermi level and Fermi surfaces of the new compound are typical for other iron based superconductors. Experimentally it was shown that introduction of Fe ions into LiOH layer gives rise to ferromagnetic ordering of the Fe ions at $T_{C}=10$ K. To study magnetic properties of [Li$_{0.8}$Fe$_{0.2}$OH]FeSe system we have performed LSDA calculations for $\sqrt 5 \times \sqrt 5$ superlattice and found ferromagnetism within the Li$_4$Fe(OH) layer. To estimate the Curie temperature we obtained Fe–Fe exchange interaction parameters for Heisenberg model from our LSDA calculations, leading to theoretical value of Curie temperature $10.4$ K in close agreement with experiment.

DOI: https://doi.org/10.7868/S0370274X15010105

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English version:
Journal of Experimental and Theoretical Physics Letters, 2015, 101:1, 47–50

Bibliographic databases:

Document Type: Article
Received: 26.11.2014
Language: English

Citation: I. A. Nekrasov, M. V. Sadovskii, “Electronic and magnetic properties of the new iron-based superconductor [Li$_{1-x}$Fe$_x$OH]FeSe”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:1 (2015), 50–53; JETP Letters, 101:1 (2015), 47–50

Citation in format AMSBIB
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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. Nejadsattari F., Stadnik Z.M., “Search For FE Magnetic Ordering in the 40 K Superconductor (Li-0.8 FE-0.2)Ohfese”, J. Alloy. Compd., 652 (2015), 470–478  crossref  isi  scopus
    2. Lynn J.W., Zhou X., Borg Ch.K.H., Saha Sh.R., Paglione J., Rodriguez E.E., “Neutron Investigation of the Magnetic Scattering in An Iron-Based Ferromagnetic Superconductor”, Phys. Rev. B, 92:6 (2015), 060510  crossref  adsnasa  isi  elib  scopus
    3. M. V. Sadovskii, “High-temperature superconductivity in FeSe monolayers”, Phys. Usp., 59:10 (2016), 947–967  mathnet  crossref  crossref  adsnasa  isi  elib
    4. Nekrasov I.A. Pavlov N.S. Sadovskii M.V. Slobodchikov A.A., “Electronic structure of FeSe monolayer superconductors”, Low Temp. Phys., 42:10 (2016), 891–899  crossref  isi  elib  scopus
    5. Woodruff D.N., Schild F., Topping C.V., Cassidy S.J., Blandy J.N., Blundell S.J., Thompson A.L., Clarket S.J., “The Parent Li(OH)FeSe Phase of Lithium Iron Hydroxide Selenide Superconductors”, Inorg. Chem., 55:19 (2016), 9886–9891  crossref  isi  elib  scopus
    6. M. X. Chen, W. Chen, Zh. Zhang, M. Weinert, “Effects of magnetic dopants in (Li0.8M0.2OH)FeSe (M=Fe, Mn, Co): Density functional theory study using a band unfolding technique”, Phys. Rev. B, 96:24 (2017), 245111  crossref  isi  scopus
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