Magnetic ordering in GbBa2(Cu0.94Fe0.06)3O9−δ below the superconducting transition temperature

H. Tang; Z. Q. Qiu; Y. -w. Du; Gang Xiao; C. L. Chien; J. C. Walker

doi:10.1103/PhysRevB.36.4018

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Magnetic ordering in GbBa2(Cu0.94Fe0.06)3O9−δ below the superconducting transition temperature

H. Tang, Z. Q. Qiu, Y. -w. Du, Gang Xiao, C. L. Chien, J. C. Walker

DOI 10.1103/PhysRevB.36.4018 · Physical Review B

T1

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Abstract

A coexistence of magnetic ordering and superconductivity has been found in GbBa2(Cu0.94Fe0.06)3O9−δ at 4.2 K. The magnetic ordering is seen in the Fe moments using Mössbauer spectroscopy. The small Fe percentage was chosen to enable us to probe the crystalline and magnetic environment of an isolated Fe ion. Possible mechanisms responsible for the establishment of the magnetic order and its nature are discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
GdBa2(Cu0.94Fe0.06)3O9-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	42	Pressure not reported	midpoint
GdBa2(Cu0.94Fe0.06)3O9-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	39	Pressure not reported	onset
YBa2Cu3O9-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2(Cu0.94Fe0.06)3O9-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown