Universal electrical resistivity in iron-based high-temperature superconductors
Abstract
Temperature-dependent electrical resistivity ρ(T) in cuprate, iron-based, and nickelate superconductors represents one of unresolved problems in modern solid-state physics, because of the high absolute value of ρ(T), which, in many cases, exceeds the Ioffe-Rigel criterion, and a large difference in the ρ(T) shape for samples with different doping. Here I show that the nearest neighbors parallel resistivity model (arXiv: 2607.23484) can well describe the in-plane resistivity ρab(T) in iron-based superconductors (IBS) of type 11, 111, 122, 1111, 1144 and 42214 in which the spin density wave phase or nematic order is suppressed by doping. The model is based on the postulate that ρab(T) is a sum of two parallel conduction channels, where one channel is described by the Bloch-Grüneisen equation and the other by the Arrhenius hopping equation. Consequently, the variety of ρab(T) in the IBS is explained as a variation of the Debye temperature ΘD and the hopping activation energy Ea. The derived Debye temperatures were used to estimate the electron-phonon coupling constant λe−phin the studied IBS.
Related
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BibTeX
@misc{talantsev2026universal,
title = {{Universal electrical resistivity in iron-based high-temperature superconductors}},
author = {E. F. Talantsev},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.23865},
eprint = {2610.23865},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.23865},
}
RIS
TY - UNPB
TI - Universal electrical resistivity in iron-based high-temperature superconductors
AU - E. F. Talantsev
PY - 2026
DA - 2026/10/20
PB - arXiv
DO - 10.48550/arxiv.2610.23865
UR - https://arxiv.org/abs/2610.23865
AB - Temperature-dependent electrical resistivity ρ(T) in cuprate, iron-based, and nickelate superconductors represents one of unresolved problems in modern solid-state physics, because of the high absolute value of ρ(T), which, in many cases, exceeds the Ioffe-Rigel criterion, and a large difference in the ρ(T) shape for samples with different doping. Here I show that the nearest neighbors parallel resistivity model (arXiv: 2607.23484) can well describe the in-plane resistivity ρ_ab(T) in iron-based superconductors (IBS) of type 11, 111, 122, 1111, 1144 and 42214 in which the spin density wave phase or nematic order is suppressed by doping. The model is based on the postulate that ρ_ab(T) is a sum of two parallel conduction channels, where one channel is described by the Bloch-Grüneisen equation and the other by the Arrhenius hopping equation. Consequently, the variety of ρ_ab(T) in the IBS is explained as a variation of the Debye temperature Θ_D and the hopping activation energy E_a. The derived Debye temperatures were used to estimate the electron-phonon coupling constant λ_e−phin the studied IBS.
ER -