Low-field transport measurements in superconducting Co/Nb/Co trilayers
G. Carapella, F. Russo, G. Costabile
DOI 10.1103/PhysRevB.78.104529 · 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
We report transport measurements in a superconducting Co/Nb/Co trilayer based on elemental ferromagnetic Co and elemental superconducting Nb. The trilayer behaves as a superconducting valve, can be operated at liquid-helium temperature, and can switch from superconductive to normal state in weak applied in-plane magnetic fields. Current-voltage curves, critical currents as a function of temperature and magnetic field, as well as preparation of superconductive or resistive state are addressed here. Data analysis suggests that the superconducting valve behavior can be accounted for by a glassy vortex phase induced in the superconductor by the stray fields from domain walls proliferating around the coercive fields of the ferromagnetic electrodes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.63 | Pressure not reported | midpoint |
Similar papers
Interplay between superconductivity and ferromagnetism in epitaxial Nb(110)/Au(111)/Co(0001) trilayers
similarity 0.96Hiroki Yamazaki et al.
Source status unknown — claims are unverified
Magnetism and superconductivity of Fe/Nb/Fe trilayers
similarity 0.95Th. Mühge et al.
Source status unknown — claims are unverified
Signatures of superconducting exchange coupling revealed through magnetic switching experiments
similarity 0.94Biswajit Dutta et al.
Source status unknown — claims are unverified
Interplay between superconductivity and ferromagnetism in epitaxial Nb(110)∕Au(111)∕Fe(110) trilayers
similarity 0.94Hiroki Yamazaki et al.
Source status unknown — claims are unverified
Superconductivity and electrical properties in single-crystalline ultrathin Nb films grown by molecular-beam epitaxy
similarity 0.94K. Yoshii et al.
Source status unknown — claims are unverified
Magnetization-Dependent Tc Shift in Ferromagnet/Superconductor/Ferromagnet Trilayers with a Strong Ferromagnet
similarity 0.94Ion C. Moraru et al.
Source status unknown — claims are unverified