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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Krztoń-Maziopa, Anna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2020Electrocrystallization of nanostructured iron-selenide films for potential application in dye sensitized solar cellscitations
- 2020Bismuth and oxygen valencies and superconducting state properties in Ba<inf>1-x</inf>K<inf>x</inf>BiO<inf>3</inf> superconductorcitations
- 2018Thermally induced structural transformations of linear coordination polymers based on aluminum tris(diorganophosphates)citations
- 2018Magnetic imaging of antiferromagnetic and superconducting phases in RbxFe2-ySe2 crystalscitations
- 2016Structural disorder in Lix(C5H5N)yFe2-zSe2 and CsxFe2-zSe2 superconductors studied by Mössbauer spectroscopycitations
- 2016Superconductivity in alkali metal intercalated iron selenidescitations
- 2014Compressibility and pressure-induced disorder in superconducting phase-separated Cs0.72Fe1.57Se2citations
- 2013Photoemission and muon spin relaxation spectroscopy of the iron-based Rb0.77Fe1.61Se2 superconductor: Crucial role of the cigar-shaped Fermi surfacecitations
- 2012Intrinsic crystal phase separation in the antiferromagnetic superconductor RbyFe2-xSe2: a diffraction studycitations
- 2012Single crystal growth of novel alkali metal intercalated iron chalcogenide superconductorscitations
- 2012ER suspensions of composite core-shell microspheres with improved sedimentation stabilitycitations
- 2011Room temperature antiferromagnetic order in superconducting XyFe2−xSe2 (X = Rb, K): a neutron powder diffraction studycitations
- 2011Synthesis and crystal growth of Cs 0.8 (FeSe 0.98 ) 2 : a new iron-based superconductor with T c = 27 Kcitations
- 2011Iron-vacancy superstructure and possible room temperature antiferromagnetic order in superconducting CsyFe2-xSe2citations
- 2011The synthesis, and crystal and magnetic structure of the iron selenide BaFe2Se3 with possible superconductivity at Tc = 11 Kcitations
- 2009Ionically conductive polymers for ER fluid preparation
- 2009Electrorheological fluids containing phosphorylated polystyrene-co-divinylbenzenecitations
- 2006Electrorheological effect in hybrid fluids with liquid crystalline additivescitations
- 2005Electrorheological fluids based on polymer electrolytescitations
- 2005Electrorheological fluids based on modified polyacrylonitrilecitations
- 2005Study of electrorheological properties of poly (p -phenylene) dispersionscitations
Places of action
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article
Photoemission and muon spin relaxation spectroscopy of the iron-based Rb0.77Fe1.61Se2 superconductor: Crucial role of the cigar-shaped Fermi surface
Abstract
In this study, we investigate the electronic and magnetic properties of Rb0.77Fe1.61Se2 (Tc = 32.6 K) in normal and superconducting states by means of photoemission and μSR spectroscopies as well as band-structure calculations.We demonstrate that the unusual behavior of these materials is the result of separation into metallic (∼12%) and insulating (∼88%) phases. Only the former becomes superconducting and has a usual electronic structure of electron-doped FeSe slabs. Our results thus imply that the antiferromagnetic insulating phase is just a by-product of Rb intercalation and its magnetic properties have no direct relation to the superconductivity. Instead, we find that also in this class of iron-based compounds, the key ingredient for superconductivity is a certain proximity of a Van Hove singularity to the Fermi level.