Suppression of superconductivity in Mn-substituted MgCNi3
A. Das, R. K. Kremer
DOI 10.1103/PhysRevB.68.064503 · Physical Review B
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Abstract
We report the effect of doping Mn in the isostructural MgCNi3−xMnx (x=0–0.05) compounds. Magnetic susceptibility, resistivity, magnetoresistance, and specific heat studies show evidence of localized moments and Kondo effect in samples with x≠0. The rapid suppression of superconductivity (∼−21K/at.% Mn) in these compounds is a consequence of pair breaking effects due to moment formation on Mn.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| MgCNi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure not reported | unknown |
| MgC0.96Ni3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure not reported | unknown |
| MgCNi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.6 | Pressure not reported | onset |
| MgCNi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.8 | Pressure not reported | onset |
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