TY - JOUR
T1 - Magnetic impurity effects on ferromagnetic fluctuations in heavily overdoped (bi,pb)2sr2cu1-yfeyo6+δ cuprates
AU - Komiyama, Yota
AU - Onishi, Shusei
AU - Harada, Mayuko
AU - Kuwahara, Hideki
AU - Kuroe, Haruhiko
AU - Kurashima, a. Koshi
AU - Kawamata, Takayuki
AU - Koike, Yoji
AU - Watanabe, Isao
AU - Adachi, Tadashi
N1 - Funding Information:
Acknowledgment We thank S. Takahashi of the Technical Division, School of Engineering, Tohoku University, for his aid in the ICP analysis. This work was partially supported by JSPS KAKENHI (Grant No. 19H01841) from JSPS.
Publisher Copyright:
© 2021 Physical Society of Japan. All rights reserved.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - We investigated the effects of Fe substitution on ferromagnetic fluctuations in the superconducting overdoped and non-superconducting heavily overdoped regimes of Bi-2201 cuprates by magnetization and electrical resistivity measurements. It was found that the spin-glass state was induced at low temperatures by the Fe substitution. The Curie constant and the effective Bohr magneton, estimated from magnetic susceptibility, as well as the dimensionality of the ferromagnetic fluctuations from the resistivity, suggest the enhancement of the ferromagnetic fluctuations caused by the Fe substitution. A ferromagnetic spin-cluster model is proposed for the heavily overdoped regime of Bi-2201, whereas an antiferromagnetic spin-cluster model has been proposed for the overdoped regime of Bi-2201 [Hiraka et al., Phys. Rev. B 81, 144501 (2010)].
AB - We investigated the effects of Fe substitution on ferromagnetic fluctuations in the superconducting overdoped and non-superconducting heavily overdoped regimes of Bi-2201 cuprates by magnetization and electrical resistivity measurements. It was found that the spin-glass state was induced at low temperatures by the Fe substitution. The Curie constant and the effective Bohr magneton, estimated from magnetic susceptibility, as well as the dimensionality of the ferromagnetic fluctuations from the resistivity, suggest the enhancement of the ferromagnetic fluctuations caused by the Fe substitution. A ferromagnetic spin-cluster model is proposed for the heavily overdoped regime of Bi-2201, whereas an antiferromagnetic spin-cluster model has been proposed for the overdoped regime of Bi-2201 [Hiraka et al., Phys. Rev. B 81, 144501 (2010)].
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U2 - 10.7566/JPSJ.90.084701
DO - 10.7566/JPSJ.90.084701
M3 - Article
AN - SCOPUS:85109457435
VL - 90
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 8
M1 - 084701
ER -