Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La1.6−xNd0.4SrxCuO4

J. M. Tranquada; J. D. Axe; N. Ichikawa; A. R. Moodenbaugh; Y. Nakamura; S. Uchida

doi:10.1103/PhysRevLett.78.338

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Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La1.6−xNd0.4SrxCuO4

J. M. Tranquada, J. D. Axe, N. Ichikawa, A. R. Moodenbaugh, Y. Nakamura, S. Uchida

DOI 10.1103/PhysRevLett.78.338 · Physical Review Letters

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Abstract

Previously we have presented evidence for stripe order of holes and spins in La1.6−xNd0.4SrxCuO4 with x=0.12. Here we show, via neutron diffraction measurements of magnetic scattering, that similar order occurs in crystals with x=0.15 and 0.20. Zero-field-cooled magnetization measurements show that all three compositions are also superconducting, with the superconducting transition temperature increasing as the low-temperature staggered magnetization decreases. These results directly demonstrate an intimate connection between stripe correlations and superconductivity.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La1.6-xNd0.4SrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown