Phase-controlled proximity effect in ferromagnetic Josephson junctions: Calculation of the density of states and the electronic specific heat
Mohammad Alidoust, Gholamreza Rashedi, Jacob Linder, Asle Sudbø
DOI 10.1103/PhysRevB.82.014532 · 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 study the thermodynamic properties of a dirty ferromagnetic S|F|S Josephson junction with s-wave superconducting leads in the low-temperature regime. We employ a full numerical solution with a set of realistic parameters and boundary conditions, considering both a uniform and nonuniform exchange field in the form of a Bloch domain wall. Our main result is that it is possible to strongly modify the electronic specific heat of the system by changing the phase difference between the two superconducting leads from zero up to nearly π. This is explained in terms of the proximity-altered density of state in the ferromagnetic region, and we discuss possible methods for experimental detection of the predicted effect.
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. | — | Pressure not reported | unknown |
| Y4Co3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y9Co7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| TiBe1.8Cu0.2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Phase Dynamics of Ferromagnetic Josephson Junctions
similarity 0.97I. Petković & M. Aprili
Source status unknown — claims are unverified
Experiments on intrinsic and thermally induced chaos in an rf-driven Josephson junction
similarity 0.95A. Davidson et al.
Source status unknown — claims are unverified
Phase locking of Josephson junctions in a two-dimensional array
similarity 0.95S. G. Lachenmann et al.
Source status unknown — claims are unverified
Analysis of the proximity-induced Josephson effect in superconducting-normal contacts
similarity 0.95A. M. Kadin
Source status unknown — claims are unverified
Temperature Dependence of Coherent Oscillations in Josephson Phase Qubits
similarity 0.95J. Lisenfeld et al.
Source status unknown — claims are unverified
Spatially resolved study of the dynamics of Josephson tunnel junctions
similarity 0.95S. G. Lachenmann et al.
Source status unknown — claims are unverified