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Title: Possibility of periodically reentrant superconductivity in ferromagnet/superconductor layered structures

Abstract

We develop the theory of the proximity effect in layered ferromagnetic metal/superconductor (F/S) structures taking into account finite transparency of the F/S interface as well as depression of the Cooper pairing and diffusionlike motion of conduction electrons by a strong exchange field of the ferromagnet. It is shown that the oscillatory dependence of the critical temperature on the F-layer thickness is due to a periodic modulation of the F/S boundary transparency by the oscillations of pair amplitude within the F layer. It is possible not only in the F/S multilayers, but in the F/S bilayers as well. The phenomena of reentrant and periodically reentrant superconductivity in the F/S contacts and superlattices are predicted. The competition between the {open_quotes}0{close_quotes} phase and {open_quotes}{pi}{close_quotes} phase types of superconductivity in the F/S multilayers is also discussed. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
;  [1]
  1. Kazan State University, 420008 Kazan (Russia)
Publication Date:
OSTI Identifier:
550559
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 56; Journal Issue: 22; Other Information: PBD: Dec 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; FERROMAGNETIC MATERIALS; SUPERCONDUCTIVITY; COOPER PAIRS; PROXIMITY EFFECT; SUPERCONDUCTING FILMS; SUPERLATTICES; FERROMAGNETISM; TRANSITION TEMPERATURE; EXCHANGE INTERACTIONS

Citation Formats

Khusainov, M G, and Proshin, Y N. Possibility of periodically reentrant superconductivity in ferromagnet/superconductor layered structures. United States: N. p., 1997. Web. doi:10.1103/PhysRevB.56.R14283.
Khusainov, M G, & Proshin, Y N. Possibility of periodically reentrant superconductivity in ferromagnet/superconductor layered structures. United States. https://doi.org/10.1103/PhysRevB.56.R14283
Khusainov, M G, and Proshin, Y N. 1997. "Possibility of periodically reentrant superconductivity in ferromagnet/superconductor layered structures". United States. https://doi.org/10.1103/PhysRevB.56.R14283.
@article{osti_550559,
title = {Possibility of periodically reentrant superconductivity in ferromagnet/superconductor layered structures},
author = {Khusainov, M G and Proshin, Y N},
abstractNote = {We develop the theory of the proximity effect in layered ferromagnetic metal/superconductor (F/S) structures taking into account finite transparency of the F/S interface as well as depression of the Cooper pairing and diffusionlike motion of conduction electrons by a strong exchange field of the ferromagnet. It is shown that the oscillatory dependence of the critical temperature on the F-layer thickness is due to a periodic modulation of the F/S boundary transparency by the oscillations of pair amplitude within the F layer. It is possible not only in the F/S multilayers, but in the F/S bilayers as well. The phenomena of reentrant and periodically reentrant superconductivity in the F/S contacts and superlattices are predicted. The competition between the {open_quotes}0{close_quotes} phase and {open_quotes}{pi}{close_quotes} phase types of superconductivity in the F/S multilayers is also discussed. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.56.R14283},
url = {https://www.osti.gov/biblio/550559}, journal = {Physical Review, B: Condensed Matter},
number = 22,
volume = 56,
place = {United States},
year = {Mon Dec 01 00:00:00 EST 1997},
month = {Mon Dec 01 00:00:00 EST 1997}
}