Spectrum of constrained electronic states in heterostructures formed with superconductor and ferromagnetic metals

V. Boylo; M. A. Belogolovskiy; T. A. Hachaturova; S. Yu. Larkin; V. Ye. Shaternik

doi:10.3103/S0735272709010075

Authors

V. Boylo State Scientific Research Center "Fonon", Ukraine
M. A. Belogolovskiy Kharkiv Institute of Physics and Technology, Ukraine
T. A. Hachaturova Kharkiv Institute of Physics and Technology, Ukraine
S. Yu. Larkin Scientific and Industrial Concern "Nauka", Ukraine
V. Ye. Shaternik Scientific Research Institute of Metal Physics of NAS of Ukraine, Ukraine

DOI:

https://doi.org/10.3103/S0735272709010075

Abstract

The dependence of ballistic Josephson’s current though heterostructures superconductor– ferromagnetic metal–isolator–ferromagnetic metal–superconductor (SF₁–I–F₂S) on the heterostructure’s parameters is calculated. The conditions, under which a significant increase in the considered Josephson’s current may be observed, are suggested.

References

A. I. Buzdin, Rev. Mod. Phys. 77, 935 (2005).

L. D. Landau and E. M. Lifshitz, Quantum Mechanics. Non-Relative Theory (Nauka, Moscow, 1974).

P. G. de Gennes, Superconductivity of Metals and Alloys (Benjamin, New York, 1966).

Yu. S. Barash, I. V. Bobkova, “Interplay of spin-discriminated Andreev bound states forming the 0-transition in superconductor–ferromagnet–superconductor junctions,” Preprint cond–mat/0108200 (2001).

A. I. Buzdin, L. N. Bulayevskiy, and S. V. Panyukov, “Critical current oscillations depending on the exchange field and thickness of ferromagnetic metal (F) in the Josephson’s contacts S–F–S,” Pisma v ZhTF 35, No. 4, 147 (1982).

N. M. Chtchelkatchev, W. Belzig, Yu. V. Nazarov, C. Bruder, “0 transition in superconductor–ferromagnetic–superconductor junctions,” Pisma v ZhTF 74, No. 6, 357 (2001).

A. A. Golubov, M. Yu. Kupriyanov, Ya. V. Fominov, “Critical current in SFIFS junctions,” Preprint cond–mat/0201249 (2002).