Absence of effect of paramagnetic impurities on flux quantization in superconductors
Dragomir Davidović, M. Tinkham
DOI 10.1103/PhysRevB.56.5132 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
In this work we investigate flux quantization effects in uniform superconducting rings doped with paramagnetic impurities. Several theories predicted that the impurity spins in weak links affect superconductivity by inducing phase shifts, which might result in half-integral fluxoid quantization. We tested whether these ideas could be extended to the case of uniform Mo rings doped with Fe, which is paramagnetic, but did not observe any such effects. We explain the absence of such effects within the de Gennes version of the Abrikosov-Gorkov theory of pair breaking.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Mo Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.6 | Pressure not reported | onset |
| MoFe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Quasiperiodic metallic multilayers: Growth and superconductivity
similarity 0.93M. G. Karkut et al.
Source status unknown — claims are unverified
Disorder and superconductivity in Mo/Si multilayers
similarity 0.92N. Ya. Fogel et al.
Source status unknown — claims are unverified
Finite quasiparticle lifetime in disordered superconductors
similarity 0.91M. Žemlička et al.
Source status unknown — claims are unverified
Anomalous behavior of the superconducting critical temperature of Mo-V superlattices
similarity 0.91J.-M. Triscone et al.
Source status unknown — claims are unverified
Depairing currents in superconducting films of Nb and amorphous MoGe
similarity 0.91A. Yu. Rusanov et al.
Source status unknown — claims are unverified
Critical sheet resistance for the suppression of superconductivity in thin Mo-C films
similarity 0.91S. J. Lee & J. B. Ketterson
Source status unknown — claims are unverified