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- W4362471902 abstract "We compute the electronic properties of the normal state of uncollapsed $mathrm{La}{mathrm{Fe}}_{2}{mathrm{As}}_{2}$, taking into account local dynamical correlations by means of slave-spin mean-field$+$density-functional theory. Assuming the same local interaction strength used to model the whole electron- and hole-doped $mathrm{Ba}{mathrm{Fe}}_{2}{mathrm{As}}_{2}$ family, our calculations reproduce the experimental Sommerfeld specific heat coefficient, which is twice the value predicted by uncorrelated band theory. We find that $mathrm{La}{mathrm{Fe}}_{2}{mathrm{As}}_{2}$ has a reduced bare bandwidth and this solves the apparent paradox of its sizable correlations despite its nominal valence ${mathrm{d}}^{6.5}$, which would imply extreme overdoping and uncorrelated behavior in $mathrm{Ba}{mathrm{Fe}}_{2}{mathrm{As}}_{2}$. Our results yield a consistent picture of the whole 122 family and point at the importance of the correlation strength, rather than sheer doping, in the interpretation of the phase diagram of iron-based superconductors" @default.
- W4362471902 created "2023-04-05" @default.
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- W4362471902 date "2023-03-31" @default.
- W4362471902 modified "2023-09-27" @default.
- W4362471902 title "Rationalizing doping and electronic correlations in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mrow><mml:mi>LaFe</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi>As</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>" @default.
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- W4362471902 doi "https://doi.org/10.1103/physrevb.107.125166" @default.
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