Anomalous behavior in the superconducting state of CeCo2

J.-G. Park; K. A. McEwen; P. C. Canfield; Seok-Hoon Lee

doi:10.1103/PhysRevB.65.014514

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Anomalous behavior in the superconducting state of CeCo2

J.-G. Park, K. A. McEwen, P. C. Canfield, Seok-Hoon Lee

DOI 10.1103/PhysRevB.65.014514 · Physical Review B

T1

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Abstract

We present experimental evidence of abnormal behavior in the mixed state of CeCo2. The temperature dependence of the magnetic anomaly just below Hc2 compares very well with that of the superconducting order parameter, which we consider as experimental evidence for a strong correlation between the two quantities. From the sample dependence of the anomaly and an electron probe microanalysis of each sample, we conclude that it is likely to be due to impurities present in the samples.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeCo2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.82	Pressure not reported	onset
CeCo2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.29	Pressure not reported	onset
CeCo1.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.87	Pressure not reported	onset
CeCo1.85 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.86	Pressure not reported	onset
CeRu2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	6	Pressure not reported	unknown