Correlation effects obtained from optical spectra of Fe-pnictides using an extended Drude-Lorentz model analysis

نویسندگان

چکیده

We introduce an analysis model, extended Drude–Lorentz and apply it to Fe-pnictide systems extract their electron–boson spectral density functions (or correlation spectra). The model consists of Drude mode for describing correlated charge carriers Lorentz modes interband transitions. can be obtained by a reverse process starting from the function extending optical self-energy and, eventually, conductivity. Using we K-doped BaFe2As2 (Ba-122) at four different doping levels. discuss doping-dependent properties Ba-122. also include pseudogap effects in using this approach. Therefore, approach is very helpful understanding analyzing measured spectra strongly electron systems, including high-temperature superconductors (cuprates Fe-pnictides).

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ژورنال

عنوان ژورنال: Current Applied Physics

سال: 2022

ISSN: ['1567-1739', '1878-1675']

DOI: https://doi.org/10.1016/j.cap.2022.04.008