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Suzuki, Kensuke; Adachi, Tadashi; Tanabe, Yasuhiro; Sato, Hidetaka; Koike, Yasuhiro; Risdiana, Risdiana; Ishii, Yasuyuki; Suzuki, Takao; Watanabe, Isao

doi:10.1103/physrevb.86.014522

Cited by 11 publications

(19 citation statements)

References 55 publications

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“…Figure 5 shows the obtained phase diagram of LSCFO together with the data of LSCO 8,9,34 and 1% Fesubstituted LSCFO. 20 The T N for LSCO and 1% Fesubstituted LSCFO was obtained in our former µSR measurements. 20 For 5% Fe-substituted LSCFO, the static magnetic state at low temperatures below T g2 in the overdoped regime is related to localized Cu 2+ spins observed in the underdoped regime, suggesting that the stripe correlations continue up to p ∼ 0.28.…”

Section: B Hole-concentration Dependence Of the Magnetic Susceptibilmentioning

confidence: 99%

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Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

et al. 2016

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In order to investigate the relationship between the so-called stripe correlations and the high-Tc superconductivity, we have carried out magnetic susceptibility and zero-field muon-spin-relaxation measurements in partially Fe-substituted La2−xSrxCu1−yFeyO4 (LSCFO). It has been found that the Fe substitution induces successive magnetic transitions in the overdoped regime, namely, a spin-glass transition of Fe 3+ spins due to the RKKY interaction based on itinerant spins at higher temperatures and a stripe-order transition of localized Cu 2+ spins at lower temperatures. The stripeorder transition disappears at the hole concentration of ∼ 0.28 per Cu which coincides with the endpoint of the superconductivity in pristine La2−xSrxCuO4, suggesting that the stripe correlations are closely related to the high-Tc superconductivity in the overdoped regime as well as in the underdoped regime. As for the spin-glass state, it has been found that the contribution of polarized itinerant spins to the muon-spin depolarization is not negligible. Taking into account neutronscattering results by R.-H. He et al. [Phys. Rev. Lett. 107, 127002 (2011)] that a spin-density-wave (SDW) order has been observed in overdoped LSCFO, the present results demonstrate the presence of a novel coexistent state of a SDW order and a spin-glass state.

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Section: B Hole-concentration Dependence Of the Magnetic Susceptibilmentioning

confidence: 99%

“…The arrows represent Tg1 or Tg2 defined as the temperature at which the ZFC data show a local maximum. (b) Fe-concentration dependences of Tg1, Tg2, T λ and the superconducting transition temperature, Tc, for LSCFO with p = 0.20 20,24. Error bars represent the inflection temperature below which the ZFC magnetic susceptibility begins to be suppressed downward.…”

mentioning

confidence: 99%

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

et al. 2016

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“…Thereupon, μSR measurements have been performed in partially Fe-substituted La 2Àx Sr x Cu 1Ày Fe y O 4 (0:06 x 0:30; 0 y 0:10) polycrystals. 48,49) As shown in Fig. 10, it has turned out that a magnetic order occurs at low temperatures through only 1% Fe substitution in a wide range of x.…”

Section: =8 Anomaly and Stripesmentioning

confidence: 98%

μSR Studies on Magnetism in High-T_c Cuprates

Koike

Adachi

2016

J. Phys. Soc. Jpn.

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Since the discovery of high-T c superconductivity in cuprates, muon spin relaxation (μSR) measurements have greatly contributed to the understanding of high-T c superconductivity. In this paper, μSR studies on the magnetism in high-T c cuprates obtained these past three decades are reviewed. Antiferromagnetic long-range order, 1=8 anomaly, stripes of Cu spins and holes, impurity-induced magnetism, magnetic-field-induced magnetism, pseudogap, ferromagnetism in the heavily overdoped regime, and undoped superconductivity in TA-type cuprates are discussed. Moreover, the fundamentals of μSR measurements for the study of magnetism are described for μSR beginners.

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“…Electronic states in pristine cuprates have been studied intensively through impurity substitution effects on magnetic correlations [30][31][32][33][34][35][36][37][38][39][40] . In LESCO, nonmagnetic Zn (Zn 2+ , S = 0) substitution effectively enhances the magnetic order in the pristine sample with p 0.14, and induces weak static magnetism, even for p 0.14 [31][32][33] .…”

Section: Introductionmentioning

confidence: 99%

“…In LESCO, nonmagnetic Zn (Zn 2+ , S = 0) substitution effectively enhances the magnetic order in the pristine sample with p 0.14, and induces weak static magnetism, even for p 0.14 [31][32][33] . In addition, the substitution of magnetic impurity Fe (Fe 3+ , S = 5/2) strongly stabilizes the magnetic order over the entire SC phase [34][35][36][37] . It is worth noting that the magnetic properties stabilized in the underdoped (UD) and overdoped (OD) regions are different.…”

Section: Introductionmentioning

confidence: 99%

Fermi-liquid state in $T$*-type La$_{1-x/2}$Eu$_{1-x/2}$Sr$_x$CuO$_4$ revealed via element substitution effects on magnetism

Taniguchi,

Kudo,

Asano

et al. 2020

Preprint

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Despite its unique structural features, the magnetism of single-layered cuprate with five oxygen coordination (T *-type structure) has not been investigated thus far. Here, we report the results of muon spin relaxation and magnetic susceptibility measurements to elucidate the magnetism of T *-type La 1−x/2 Eu 1−x/2 SrxCuO4 (LESCO) via magnetic Fe-and non-magnetic Zn-substitution. We clarified the inducement of the spin-glass (SG)-like magnetically ordered state in La 1−x/2 Eu 1−x/2 SrxCuyFe1−yO4 with x = 0.24 + y, and the non-magnetic state in La 1−x/2 Eu 1−x/2 SrxCuyZn1−yO4 with x = 0.24 after the suppression of superconductivity for y ≥ 0.025. The SG state lies below ∼7 K in a wide Sr concentration range between 0.19 and 0.34 in 5% Fe-substituted LESCO. The short-range SG state is consistent with that originating from the Ruderman-Kittel-Kasuya-Yosida interaction in a metallic state. Thus, the results provide the first evidence for Fermi liquid (FL) state in the pristine T *-type LESCO. Taking into account the results of an oxygen K-edge X-ray absorption spectroscopy measurement [J. Phys. Soc. Jpn. 89, 075002 (2020)] reporting the actual hole concentrations in LESCO, our results demonstrate the existence of the FL state in a lower hole-concentration region, compared to that in T -type La2−xSrxCuO4. The emergence of the FL state in a lower hole-concentration region is possibly associated with a smaller charge transfer gap energy in the parent material with five oxygen coordination.

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Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La2−xSrxCu<

Cited by 11 publications

References 55 publications

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

μSR Studies on Magnetism in High-T_c Cuprates

Fermi-liquid state in $T$*-type La$_{1-x/2}$Eu$_{1-x/2}$Sr$_x$CuO$_4$ revealed via element substitution effects on magnetism

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Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La2−xSrxCu<

Cited by 11 publications

References 55 publications

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La2−xSrxCu1−yFeyO4: Possible Existence of Stripe Correlations in the Overdoped Regime

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La2−xSrxCu1−yFeyO4: Possible Existence of Stripe Correlations in the Overdoped Regime

μSR Studies on Magnetism in High-Tc Cuprates

Fermi-liquid state in $T$*-type La$_{1-x/2}$Eu$_{1-x/2}$Sr$_x$CuO$_4$ revealed via element substitution effects on magnetism

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Product

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Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

Successive Magnetic Transitions Relating to Itinerant Spins and Localized Cu Spins in La₂₋_xSr_xCu₁₋_yFe_yO₄: Possible Existence of Stripe Correlations in the Overdoped Regime

μSR Studies on Magnetism in High-T_c Cuprates