TC suppression in Pr-doped 123-systems: Hole clustering

TL;DR

This paper explains the suppression of the critical temperature in Pr-doped 123-systems by modifying hole localization theory with a geometrical band percolation model that emphasizes hole clustering effects, supported by experimental evidence.

Contribution

It introduces a geometrical modeling approach based on band percolation theory to explain TC suppression across all Pr-doping levels, highlighting the role of hole clustering.

Findings

Model aligns well with experimental data

Hole clustering significantly impacts TC suppression

Simulation results support the proposed theory

Abstract

Doping Pr in 123-systems gives rise to some anomalies, such as TC suppression. Here, we show that a modification of hole localization theory based on a geometrical modeling by band percolation theory can put forward a good explanations for TC suppression for whole range of Pr-doping value. In this model the central effect of hole clustering is introduced. Also we have provided some experimental evidences which manifest an agreement between simulation based on hole clustering effect and the experimental data.