Analysis of optical data using extended Drude model and generalized Allen's formulas.

Area of Science:

• Condensed matter physics
• Materials science
• Superconductivity

Background:

• Extended Drude model and generalized Allen's formulas are key for optical spectra analysis.
• Strongly correlated electron systems, including cuprates, exhibit complex electronic behaviors.
• Understanding electron-boson interactions is crucial for high-temperature superconductivity.

Purpose of the Study:

• To apply a reverse process using model electron-boson spectral density functions.
• To obtain optical quantities for normal, pseudogap, and superconducting phases in cuprates.
• To compare calculated optical spectra with experimental data for Bi-2212.

Main Methods:

• Utilized two model electron-boson spectral density functions.
• Calculated optical quantities for different cuprate phases.
• Assigned results to the phase diagram and compared with Bi-2212 optical spectra.

Main Results:

• Successfully obtained optical quantities from model functions.
• Correlated calculated optical spectra with experimental data for Bi-2212.
• Demonstrated the method's applicability across various cuprate phases.

Conclusions:

• The reverse optical data analysis is effective for studying correlated electrons.
• This approach provides insights into cuprate superconductors.
• The method shows promise for analyzing other superconducting systems.