Competition between superconductivity and antiferromagnetism in Cu(2) layers of Y1−xPrxBa2Cu3−yMyOz, M=Fe,Co,Zn

I. Felner; I. Nowik; E. R. Bauminger; D. Hechel; U. Yaron

doi:10.1103/PhysRevLett.65.1945

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Competition between superconductivity and antiferromagnetism in Cu(2) layers of Y1−xPrxBa2Cu3−yMyOz, M=Fe,Co,Zn

I. Felner, I. Nowik, E. R. Bauminger, D. Hechel, U. Yaron

DOI 10.1103/PhysRevLett.65.1945 · Physical Review Letters

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Abstract

The antiferromagnetic (AFM) and superconducting (SC) phase-transition temperatures of Y1−xPrxBa2Cu3−yMyOz, M=Fe,Co,Zn, were studied by magnetometry and Fe57 Mössbauer spectroscopy. For z∼7, substitutions at all sites except those in the CuO2 planes (Pr,Fe,Co) cause superconductivity to disappear at xc=0.5 or yc=0.4 and antiferromagnetism to appear above xc and yc. For z∼6, antiferromagnetism persists for all x and y values. On the other hand, substitution in the Cu(2) planes (Zn) suppresses both superconductivity at yc=0.24 for z∼7 and antiferromagnetism for z∼6. No antiferromagnetism is seen for z∼7.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	unknown
Y1-xPrxBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3-yFeyO7+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3-yZnyOz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown