Abstract
For ferromagnet/superconductor (F/S) layered structures, new 3D Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) states are predicted. In most cases, these states are characterized by a higher critical temperature T c than the known 1D LOFF states. It is shown that the nonmonotonic behavior of T c is determined by the oscillations of the Cooper pair flux through the F/S boundary, which occur as a result of the 3D-1D-3D phase transitions at the Lifshits triple points. The appearance of the new 3D LOFF states and the presence of nonmagnetic impurities leads to a strong damping of the 1D oscillations of the LOFF pair amplitude and to a considerable smoothing of the dependence of T c on the F layer thickness d f . An interpretation of the behavior of the experimental dependences T c (d f ) obtained for F/S structures is proposed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
P. Koorevaar, Y. Suzuki, R. Coehoorn, et al., Phys. Rev. B 49, 441 (1994).
C. Strunk, C. Sürgers, U. Paschen, et al., Phys. Rev. B 49, 4053 (1994).
H. K. Wong, B. Y. Jin, H. Q. Yang, et al., J. Low Temp. Phys. 63, 307 (1986).
J. S. Jiang, D. Davidović, D. H. Reich, et al., Phys. Rev. Lett. 74, 314 (1995).
J. S. Jiang, D. Davidović, D. H. Reich, et al., Phys. Rev. B 54, 6119 (1996).
Z. Radović, M. Ledvij, L. Dobrosavljević-Grujić, et al., Phys. Rev. B 44, 759 (1991).
A. I. Buzdin, B. Bujicić, and M. Yu. Kupriyanov, Zh. Éksp. Teor. Fiz. 101, 231 (1992) [Sov. Phys. JETP 74, 124 (1992)].
Th. Mühge, N. N. Garif’yanov, Yu. V. Goryunov, et al., Phys. Rev. Lett. 77, 1857 (1996).
Yu. N. Proshin and M. G. Khusainov, Pis’ma Zh. Éksp. Teor. Fiz. 66, 527 (1997) [JETP Lett. 66, 562 (1997)].
M. G. Khusainov and Yu. N. Proshin, Phys. Rev. B 56, 14283 (1997).
Yu. N. Proshin and M. G. Khusainov, Zh. Éksp. Teor. Fiz. 113, 1708 (1998) [JETP 86, 930 (1998)].
N. N. Garif’yanov, Yu. V. Goryunov, Th. Mühge, et al., Eur. Phys. J. B 1, 405 (1998).
J. Aarts, I. M. E. Geers, E. Brück, et al., Phys. Rev. B 56, 2779 (1997).
Th. Mühge, K. Theis-Bröhl, K. Westerholt, et al., Phys. Rev. B 57, 5071 (1998).
G. Verbank, C. D. Potter, V. Metlushko, et al., Phys. Rev. B 57, 6029 (1998).
Y. Obi, V. Ikebe, T. Kubo, et al., Physica C 317–318, 149 (1999).
A. I. Larkin and Yu. N. Ovchinnikov, Zh. Éksp. Teor. Fiz. 47, 1136 (1965) [Sov. Phys. JETP 20, 762 (1965)].
P. Fulde and R. A. Ferrell, Phys. Rev. A 135, 550 (1964).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 71, No. 4, 2000, pp. 202–209.
Original Russian Text Copyright © 2000 by Izyumov, Proshin, Khusainov.
Rights and permissions
About this article
Cite this article
Izyumov, Y.A., Proshin, Y.N. & Khusainov, M.G. Multicritical behavior of the phase diagrams of ferromagnet/superconductor layered structures. Jetp Lett. 71, 138–143 (2000). https://doi.org/10.1134/1.568299
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.568299