Inhomogeneity of superconductivity and stripe correlations at x ∼ 0.21 in La2-xSrxCuO4

M. Miyazaki, T. Adachi, Y. Tanabe, H. Sato, T. Nishizaki, Kazutaka Kudo, T. Sasaki, N. Kobayashi, Y. Koike

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Abstract

With the aim at investigating the relationship between the anomalous decrease in Tc, the development of the Cu-spin correlation and the inhomogeneity of superconductivity at x ∼ 0.21 in the overdoped regime of La2-xSrxCuO4, we have performed the in-plane electrical-resistivity, ρab and magnetization measurements. Measurements of the temperature dependence of ρab in magnetic fields have revealed that the superconducting (SC) transition curve shifts to the low-temperature side almost in parallel with increasing field above ∼ 9 T at x ∼ 0.21, which is similar to that observed for stripe-ordered La-214 systems with the hole concentration of ∼ 1/8 per Cu. On the other hand, it has been found that the magnetization curve shows the so-called second peak in the SC state at x ∼ 0.21, which is due to the strong vortex pinning in normal-state regions in the nano-scale inhomogeneous SC state. Accordingly, it is likely that the stripe correlations are developed in the nano-scale inhomogeneous SC state at x ∼ 0.21.

Original languageEnglish
Article number022074
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 2
DOIs
Publication statusPublished - 2012

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inhomogeneity
superconductivity
magnetization
curves
vortices
temperature dependence
electrical resistivity
shift
magnetic fields

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  • Physics and Astronomy(all)

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Inhomogeneity of superconductivity and stripe correlations at x ∼ 0.21 in La2-xSrxCuO4 . / Miyazaki, M.; Adachi, T.; Tanabe, Y.; Sato, H.; Nishizaki, T.; Kudo, Kazutaka; Sasaki, T.; Kobayashi, N.; Koike, Y.

In: Journal of Physics: Conference Series, Vol. 400, No. PART 2, 022074, 2012.

Research output: Contribution to journalArticle

Miyazaki, M, Adachi, T, Tanabe, Y, Sato, H, Nishizaki, T, Kudo, K, Sasaki, T, Kobayashi, N & Koike, Y 2012, 'Inhomogeneity of superconductivity and stripe correlations at x ∼ 0.21 in La2-xSrxCuO4 ', Journal of Physics: Conference Series, vol. 400, no. PART 2, 022074. https://doi.org/10.1088/1742-6596/400/2/022074
Miyazaki, M. ; Adachi, T. ; Tanabe, Y. ; Sato, H. ; Nishizaki, T. ; Kudo, Kazutaka ; Sasaki, T. ; Kobayashi, N. ; Koike, Y. / Inhomogeneity of superconductivity and stripe correlations at x ∼ 0.21 in La2-xSrxCuO4 . In: Journal of Physics: Conference Series. 2012 ; Vol. 400, No. PART 2.
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AU - Adachi, T.

AU - Tanabe, Y.

AU - Sato, H.

AU - Nishizaki, T.

AU - Kudo, Kazutaka

AU - Sasaki, T.

AU - Kobayashi, N.

AU - Koike, Y.

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