Interaction of superconductivity and itinerant-electron magnetism: Critical fields of Ni/V superlattices

H. Homma; C. S. L. Chun; G.-G. Zheng; Ivan K. Schuller

doi:10.1103/PhysRevB.33.3562

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Interaction of superconductivity and itinerant-electron magnetism: Critical fields of Ni/V superlattices

H. Homma, C. S. L. Chun, G.-G. Zheng, Ivan K. Schuller

DOI 10.1103/PhysRevB.33.3562 · Physical Review B

T1

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Abstract

We present experimental results showing an anomalous behavior in the critical fields of superconductor/magnet superlattices. Close to the superconducting transition temperature the critical-field anisotropy is reversed (i.e., the parallel critical field is smaller than the perpendicular critical field). As the temperature is reduced the anisotropy reverts to the normal behavior. This effect is attributed to the competing interaction between the itinerant magnetism in the magnetic (Ni) layer and the superconducting (V) layers.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
ErRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
SmRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown