Critical current behavior in Josephson junctions with the weak ferromagnet PdNi
Trupti S. Khaire, W. P. Pratt, Jr., Norman O. Birge
DOI 10.1103/PhysRevB.79.094523 · 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 have studied the variation in critical current in superconductor/ferromagnet/superconductor Josephson Junctions as a function of ferromagnet thickness using a weakly ferromagnetic alloy Pd82Ni12. Measurements were performed for the thickness range 32–100 nm, over which the critical current density decreases by 5 orders of magnitude. The critical current density oscillates with a period of π×(4.4±0.1) nm, and decays over a characteristic length of 7.7±0.5 nm. There is no evidence of a crossover to a slower decay, which might indicate the presence of long-range spin-triplet pair correlations. We discuss possible reasons for their absence, including the possibility of strong spin-flip scattering in PdNi.
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. | 9.2 | Pressure not reported | unknown |
Similar papers
Josephson junctions with ferromagnetic barriers for digital superconducting electronics: A review
similarity 0.95A. Mitrovic & M. Bocko
Source status unknown — claims are unverified
Solitonic thermal transport in a current-biased long Josephson junction
similarity 0.95Claudio Guarcello et al.
Source status unknown — claims are unverified
Tailoring Josephson Coupling through Superconductivity-Induced Nonequilibrium
similarity 0.94F. Giazotto et al.
Source status unknown — claims are unverified
Optimization of Spin-Triplet Supercurrent in Ferromagnetic Josephson Junctions
similarity 0.94Carolin Klose et al.
Source status unknown — claims are unverified
Backbending current-voltage characteristic for an annular Josephson junction in a magnetic field
similarity 0.93Alexey V. Ustinov et al.
Source status unknown — claims are unverified
Critical Current Behavior in Josephson Junctions with the Weak Ferromagnet PdNi
similarity 0.93Trupti S. Khaire et al. · 2009 · arXiv:0901.1321
Source status unknown — claims are unverified