### 抄録

We have investigated the low-frequency Cu-spin dynamics of partially Fe-substituted La_{2-x}SrxCu_{1-y}FeyO4 with x = 0.06-0.235 and y = 0.01 from zero-field muon-spin-relaxation measurements. We find that the magnetic transition temperature, T^{mid} _{N}, is enhanced through the 1% Fe substitution in a wide range of hole concentration per Cu, N p, where superconductivity appears in La_{2-x}Sr_{x}CuO_{4}. The T^{mid} _{N} exhibits a local maximum at p ∼ 0.115 and exists even in the overdoped regime of p > 0.15. To the surprise, T^{mid} _{N} in the overdoped regime of 0.15 < p ≤ 0.225 is larger than in the underdoped regime of 0.05 ≤ p ≤ 0.09. These results suggest that the substitution of Fe as a magnetic impurity is effective for the stabilization of the so-called stripe order in high-T_{c} cuprates in the underdoped regime and that the nature of the magnetic order induced through the Fe substitution in the overdoped regime might be different from that in the underdoped regime.

元の言語 | English |
---|---|

ページ（範囲） | 275-278 |

ページ数 | 4 |

ジャーナル | Unknown Journal |

巻 | 30 |

DOI | |

出版物ステータス | Published - 2012 |

外部発表 | Yes |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### これを引用

_{2-x}Sr

_{x}Cu

_{1-y}Fe

_{y}O

_{4}Studied by Muon Spin Relaxation.

*Unknown Journal*,

*30*, 275-278. https://doi.org/10.1016/j.phpro.2012.04.090

**Fe-substitution Effects on the Cu-spin Correlation in La _{2-x}Sr_{x}Cu_{1-y}Fe_{y}O_{4} Studied by Muon Spin Relaxation.** / Suzuki, K.; Adachi, T.; Tanabe, Y.; Sato, H.; Risdiana, ; Ishii, Yasuyuki; Suzuki, Takao; Watanabe, I.; Koike, Y.

研究成果: Article

_{2-x}Sr

_{x}Cu

_{1-y}Fe

_{y}O

_{4}Studied by Muon Spin Relaxation',

*Unknown Journal*, 巻. 30, pp. 275-278. https://doi.org/10.1016/j.phpro.2012.04.090

_{2-x}Sr

_{x}Cu

_{1-y}Fe

_{y}O

_{4}Studied by Muon Spin Relaxation. Unknown Journal. 2012;30:275-278. https://doi.org/10.1016/j.phpro.2012.04.090

}

TY - JOUR

T1 - Fe-substitution Effects on the Cu-spin Correlation in La2-xSrxCu1-yFeyO4 Studied by Muon Spin Relaxation

AU - Suzuki, K.

AU - Adachi, T.

AU - Tanabe, Y.

AU - Sato, H.

AU - Risdiana,

AU - Ishii, Yasuyuki

AU - Suzuki, Takao

AU - Watanabe, I.

AU - Koike, Y.

PY - 2012

Y1 - 2012

N2 - We have investigated the low-frequency Cu-spin dynamics of partially Fe-substituted La2-xSrxCu1-yFeyO4 with x = 0.06-0.235 and y = 0.01 from zero-field muon-spin-relaxation measurements. We find that the magnetic transition temperature, Tmid N, is enhanced through the 1% Fe substitution in a wide range of hole concentration per Cu, N p, where superconductivity appears in La2-xSrxCuO4. The Tmid N exhibits a local maximum at p ∼ 0.115 and exists even in the overdoped regime of p > 0.15. To the surprise, Tmid N in the overdoped regime of 0.15 < p ≤ 0.225 is larger than in the underdoped regime of 0.05 ≤ p ≤ 0.09. These results suggest that the substitution of Fe as a magnetic impurity is effective for the stabilization of the so-called stripe order in high-Tc cuprates in the underdoped regime and that the nature of the magnetic order induced through the Fe substitution in the overdoped regime might be different from that in the underdoped regime.

AB - We have investigated the low-frequency Cu-spin dynamics of partially Fe-substituted La2-xSrxCu1-yFeyO4 with x = 0.06-0.235 and y = 0.01 from zero-field muon-spin-relaxation measurements. We find that the magnetic transition temperature, Tmid N, is enhanced through the 1% Fe substitution in a wide range of hole concentration per Cu, N p, where superconductivity appears in La2-xSrxCuO4. The Tmid N exhibits a local maximum at p ∼ 0.115 and exists even in the overdoped regime of p > 0.15. To the surprise, Tmid N in the overdoped regime of 0.15 < p ≤ 0.225 is larger than in the underdoped regime of 0.05 ≤ p ≤ 0.09. These results suggest that the substitution of Fe as a magnetic impurity is effective for the stabilization of the so-called stripe order in high-Tc cuprates in the underdoped regime and that the nature of the magnetic order induced through the Fe substitution in the overdoped regime might be different from that in the underdoped regime.

KW - Fe-substitution effect

KW - LaSrCuFeO

KW - muon spin relaxation

UR - http://www.scopus.com/inward/record.url?scp=84978513759&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978513759&partnerID=8YFLogxK

U2 - 10.1016/j.phpro.2012.04.090

DO - 10.1016/j.phpro.2012.04.090

M3 - Article

AN - SCOPUS:84978513759

VL - 30

SP - 275

EP - 278

JO - Unknown Journal

JF - Unknown Journal

ER -