### 抜粋

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 |

### フィンガープリント

### 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