Matches in SemOpenAlex for { <https://semopenalex.org/work/W2479969129> ?p ?o ?g. }
- W2479969129 abstract "The surprising discovery of tripling the superconducting critical temperature of ${mathrm{KFe}}_{2}{mathrm{As}}_{2}$ at high pressures has led to an intriguing question of how the superconductivity in the collapsed tetragonal phase differs from that in the noncollapsed phases of Fe-based superconductors. Here we report a $^{89}mathrm{Y}$ nuclear magnetic resonance study of ${mathrm{YFe}}_{2}{mathrm{Ge}}_{x}{mathrm{Si}}_{2ensuremath{-}x}$ compounds whose electronic structure is similar to that of iron-pnictide collapsed tetragonal phases already at ambient pressure. We find that Fe(Ge,Si) layers show ferromagnetic spin fluctuations, whereas the layers are coupled antiferromagnetically. Furthermore, localized moments attributed either to Fe interstitial or antisite defects may account for magnetic impurity pair-breaking effects, thus explaining the substantial variation of superconductivity among different ${mathrm{YFe}}_{2}{mathrm{Ge}}_{2}$ samples." @default.
- W2479969129 created "2016-08-23" @default.
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- W2479969129 date "2017-11-22" @default.
- W2479969129 modified "2023-10-16" @default.
- W2479969129 title "Y89 NMR observation of ferromagnetic and antiferromagnetic spin fluctuations in the collapsed tetragonal phase of YFe2 (Ge,Si) 2" @default.
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- W2479969129 doi "https://doi.org/10.1103/physrevb.96.174430" @default.
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