Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Ferromagnetic Fluctuations in the Heavily Overdoped Regime of Single-Layer High-TC Cuprate Superconductors

Tadashi Adachi
* ORCID logo ,
Koshi Kurashima
,
Takayuki Kawamata
,
Takashi Noji
,
Satoru Nakajima
,
Yoji Koike
Version 1 : Received: 7 July 2023 / Approved: 10 July 2023 / Online: 10 July 2023 (04:10:37 CEST)

A peer-reviewed article of this Preprint also exists.

Adachi, T.; Kurashima, K.; Kawamata, T.; Noji, T.; Nakajima, S.; Koike, Y. Ferromagnetic Fluctuations in the Heavily Overdoped Regime of Single-Layer High-Tc Cuprate Superconductors. Materials 2023, 16, 7048, doi:10.3390/ma16217048. Adachi, T.; Kurashima, K.; Kawamata, T.; Noji, T.; Nakajima, S.; Koike, Y. Ferromagnetic Fluctuations in the Heavily Overdoped Regime of Single-Layer High-Tc Cuprate Superconductors. Materials 2023, 16, 7048, doi:10.3390/ma16217048.

Abstract

To investigate proposed ferromagnetic fluctuations in the single-layer Bi-2201 and La-214 high-Tc cuprates, we performed magnetization and electrical-resistivity measurements using single-layer Tl-2201 cuprates Tl2Ba2CuO6+d as well as La-214 La2-xSrxCuO4 in the heavily overdoped regime. Magnetization of Tl-2201 exhibited the tendency to be saturated in high magnetic fields at low temperatures, suggesting the precursor behavior toward the formation of a ferromagnetic order. It was found that the power of temperature n obtained from the temperature dependence of the electrical resistivity is ~ 4/3 and ~5/3 for Bi-2201 and La-214, respectively, and is ~ 4/3 at high temperatures and ~5/3 at low temperatures in Tl-2201. These results suggest that two-dimensional ferromagnetic fluctuations exist in Tl-2201 at high temperatures and Bi-2201 and that three-dimensional ferromagnetic fluctuations exist in Tl-2201 at low temperatures and La-214. The dimensionality of ferromagnetic fluctuations is understood in terms of the dimensionality of the crystal structure and the bonding of atoms in the blocking layer.

Keywords

ferromagnetic fluctuation; Tl-2201 cuprate; La-214 cuprate; Bi-2201 cuprate; electrical resistivity; magnetization

Subject

Physical Sciences, Condensed Matter Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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