Correlated decrease between the superconducting volume fraction and T c and possible phase separation in the overdoped regime of La 2-xSrxCuO4

Y. Tanabe; T. Adachi; T. Noji; H. Sato; Y. Koike

doi:10.1063/1.2354764

Correlated decrease between the superconducting volume fraction and T _c and possible phase separation in the overdoped regime of La _2-xSr_xCuO₄

Y. Tanabe, T. Adachi, T. Noji, H. Sato, Y. Koike

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Citations (Scopus)

Abstract

In order to prove the possible phase separation in the overdoped high-T_c superconductors, suggested from the muon-spin-relaxation measurements, the superconducting (SC) volume fraction has been investigated in detail in the overdoped regime of La_2-xSr_xCuO₄. From measurements of the magnetic susceptibility, χ, using a single crystal in which the Sr concentration, x, continuously changes in the overdoped regime, both the absolute value of χ at 2 K, χ_2K, on field cooling reflecting the SC volume fraction and T_c have been found to decrease with increasing x. Moreover, it appears that χ_2K has a roughly linear relation to T_c. It has been concluded that phase separation into SC and normal-state regions takes place in the overdoped regime of La _2-xSr_xCuO₄.

Original language	English
Title of host publication	LOW TEMPERATURE PHYSICS
Subtitle of host publication	24th International Conference on Low Temperature Physics - LT24
Pages	419-420
Number of pages	2
DOIs	https://doi.org/10.1063/1.2354764
Publication status	Published - 2006 Dec 1
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 2006 Aug 10 → 2006 Oct 17

Publication series

Name	AIP Conference Proceedings
Volume	850
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/Territory	United States
City	Orlando, FL
Period	06/8/10 → 06/10/17

Keywords

LaSr CuO
Magnetic susceptibility
Overdoped regime
Phase separation

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.2354764

Cite this

Tanabe, Y., Adachi, T., Noji, T., Sato, H., & Koike, Y. (2006). Correlated decrease between the superconducting volume fraction and T _c and possible phase separation in the overdoped regime of La _2-xSr_xCuO₄. In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 (pp. 419-420). (AIP Conference Proceedings; Vol. 850). https://doi.org/10.1063/1.2354764

Correlated decrease between the superconducting volume fraction and T _c and possible phase separation in the overdoped regime of La _2-xSr_xCuO₄. / Tanabe, Y.; Adachi, T.; Noji, T. et al.
LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. 2006. p. 419-420 (AIP Conference Proceedings; Vol. 850).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tanabe, Y, Adachi, T, Noji, T, Sato, H & Koike, Y 2006, Correlated decrease between the superconducting volume fraction and T _c and possible phase separation in the overdoped regime of La _2-xSr_xCuO₄. in LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, vol. 850, pp. 419-420, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 06/8/10. https://doi.org/10.1063/1.2354764

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abstract = "In order to prove the possible phase separation in the overdoped high-Tc superconductors, suggested from the muon-spin-relaxation measurements, the superconducting (SC) volume fraction has been investigated in detail in the overdoped regime of La2-xSrxCuO4. From measurements of the magnetic susceptibility, χ, using a single crystal in which the Sr concentration, x, continuously changes in the overdoped regime, both the absolute value of χ at 2 K, χ2K, on field cooling reflecting the SC volume fraction and Tc have been found to decrease with increasing x. Moreover, it appears that χ2K has a roughly linear relation to Tc. It has been concluded that phase separation into SC and normal-state regions takes place in the overdoped regime of La 2-xSrxCuO4.",

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AU - Koike, Y.

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