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Persistent URL
http://purl.org/net/epubs/work/54089503
Record Status
Checked
Record Id
54089503
Title
Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La 2 − x Sr x Cu 1 − y Fe y O 4 revealed by muon spin relaxation
Contributors
KM Suzuki
,
T Adachi
,
Y Tanabe
,
H Sato
,
Y Koike
,
R Risdiana
,
Y Ishii
,
T Suzuki
,
I Watanabe
Abstract
Zero-field and longitudinal-field muon-spin-relaxation measurements have been performed in partially Fe-substituted La2−xSrxCu1−yFeyO4 in a wide range of hole concentration to investigate the magnetic state induced by the Fe substitution recently suggested from the neutron-scattering measurements [R.-H. He et al., Phys. Rev. Lett. 107, 127002 (2011)]. It has been found that the magnetic transition temperature is notably enhanced through the 1% Fe substitution in a wide range of hole concentration where superconductivity appears in Fe-free La2−xSrxCuO4. In the underdoped regime, the Fe-induced magnetic order can be understood in terms of the concept of stripe pinning by Fe as in the case of the Zn-induced one in La2−xSrxCu1−yZnyO4. In the overdoped regime, on the other hand, the Fe-induced magnetic order is short-ranged, which is distinct from the stripes. It is plausible that a spin-glass state of Fe spins derived from the Ruderman-Kittel-Kasuya-Yosida interaction is realized in the overdoped regime, suggesting a change of the ground state from the strongly correlated state to the Fermi-liquid state with hole doping in La-214 high-Tc cuprates.
Organisation
ISIS
,
ISIS-RIKEN
,
ISIS-MUONS
,
STFC
Keywords
Funding Information
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Language
English (EN)
Type
Details
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Year
Journal Article
Phys Rev B
86 (2012): 014522.
https://doi.org/1…3/PhysRevB.86.014522
2012
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