Charge Dynamics from Copper Oxide Materials

TL;DR

This paper investigates the charge dynamics in copper oxide materials across different doping levels using fermion-spin theory, revealing non-Drude conductivity, midinfrared peaks, and linear temperature-dependent resistivity, aligning with experimental observations.

Contribution

It applies fermion-spin theory to explain charge dynamics in copper oxides, highlighting non-Drude behavior and midinfrared peaks not fully understood before.

Findings

Non-Drude behavior in conductivity spectrum

Presence of midinfrared peak in spectra

Linear temperature dependence of resistivity

Abstract

The charge dynamics of the copper oxide materials in the underdoped and optimal doped regimes is studied within the framework of the fermion-spin theory. The conductivity spectrum shows the non-Drude behavior at low energies and unusual midinfrared peak, and the resistivity exhibits a linear behavior in the temperature, which are consistent with experiments and numerical simulations.