Competition between Magnetic Order and Superconductivity in CeCu2.2Si2
G. M. Luke, A. Keren, K. Kojima, L. P. Le, B. J. Sternlieb, W. D. Wu, Y. J. Uemura, Y. Ōnuki, T. Komatsubara
DOI 10.1103/PhysRevLett.73.1853 · Physical Review Letters
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Abstract
We describe muon spin relaxation measurements of the magnetic heavy fermion compound CeCu2.2Si2. Static magnetic order appears below about 1 K, most likely of spin glass nature. We find that the superconducting transition onsetting at 0.6 K partially destroys the magnetic state and that the magnetic volume fraction decreases within the superconducting state. This observation supports the idea that in CeCu2.2Si2, magnetic order and superconductivity compete with each other rather than coexist.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeCu2.2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.73 | Pressure unresolved | onset |
| CeCu2.2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.62 | Pressure unresolved | zero_resistance |
| CeCu2.2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.6 | Pressure unresolved | onset |
| CeCu2Ge2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.64 | 10.1 GPa | unknown |
| CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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