Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La 2-xSr xCu 1-yFe yO 4 revealed by muon spin relaxation

K. M. Suzuki, T. Adachi, Y. Tanabe, H. Sato, Y. Koike, Risdiana, Yasuyuki Ishii, Takao Suzuki, I. Watanabe

Research output: Contribution to journalArticle

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Abstract

Zero-field and longitudinal-field muon-spin-relaxation measurements have been performed in partially Fe-substituted La 2-xSr xCu 1-yFe yO 4 in a wide range of hole concentration to investigate the magnetic state induced by the Fe substitution recently suggested from the neutron-scattering measurements. 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 La 2-xSr xCuO 4. 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 La 2-xSr xCu 1-yZn yO 4. 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-T c cuprates.

Original languageEnglish
Article number014522
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number1
DOIs
Publication statusPublished - 2012 Jul 27

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Hole concentration
muons
Substitution reactions
Fermi liquids
Spin glass
Neutron scattering
Superconductivity
substitutes
Ground state
Superconducting transition temperature
Doping (additives)
spin glass
cuprates
neutron scattering
superconductivity
transition temperature
ground state
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La 2-xSr xCu 1-yFe yO 4 revealed by muon spin relaxation. / Suzuki, K. M.; Adachi, T.; Tanabe, Y.; Sato, H.; Koike, Y.; Risdiana, ; Ishii, Yasuyuki; Suzuki, Takao; Watanabe, I.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 86, No. 1, 014522, 27.07.2012.

Research output: Contribution to journalArticle

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AU - Tanabe, Y.

AU - Sato, H.

AU - Koike, Y.

AU - Risdiana,

AU - Ishii, Yasuyuki

AU - Suzuki, Takao

AU - Watanabe, I.

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