NNN 12 P Quasi-one dimensional FFLO-like state in three-layered structures based on Nb and Cu41Ni59 ALLOY
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ZDRAVKOV, Vladimir; OBERMEIER, Guenter; GARCIA-GARCIA, Jose Maria; KEHRLE, J.-M.; ULLRICH, Aladin; MULLER, C; MORARI, Roman; ANTROPOV, Evgheni; HÖRN, Siegfried; TAGIROV, Lenar; TIDECKS, Reinhard; SIDORENKO, Anatolie. NNN 12 P Quasi-one dimensional FFLO-like state in three-layered structures based on Nb and Cu41Ni59 ALLOY. In: Materials Science and Condensed Matter Physics. Editia a 6-a, 11-14 septembrie 2012, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2012, p. 221. ISBN 978-9975-66-290-1.
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Materials Science and Condensed Matter Physics
Editia a 6-a, 2012
Conferința "Materials Science and Condensed Matter Physics"
Chișinău, Moldova, 11-14 septembrie 2012

NNN 12 P Quasi-one dimensional FFLO-like state in three-layered structures based on Nb and Cu41Ni59 ALLOY


Pag. 221-221

Zdravkov Vladimir12, Obermeier Guenter2, Garcia-Garcia Jose Maria2, Kehrle J.-M.2, Ullrich Aladin2, Muller C2, Morari Roman13, Antropov Evgheni1, Hörn Siegfried2, Tagirov Lenar24, Tidecks Reinhard2, Sidorenko Anatolie51
 
1 Ghitu Institute of Electronic Engineering and Nanotechnology,
2 University of Augsburg,
3 Karlsruhe Institute of Technology (KIT), Physikalisches Institut,
4 Kazan State University,
5 Karlsruher Institut Fuer Technologie
 
Disponibil în IBN: 25 martie 2020


Rezumat

The rapid development of spin-dependent electronics – spintronics, and in the last decade, the appearance of superconducting spintronic devices with extremely high speed of action and practically zero heat dissipation, made the problem of investigation of layered structures based on ferromagnet and superconductor extremely actual either from a practical point of view or a fundamental one. Theoretically predicted phenomenon of reentrant superconducting behavior of heterostructures based on ultra thin layers of superconductor and ferromagnetic should serve as a confirmation of the realization of quantum phenomenon, a quasi-one-dimensional LOFF-like state [1]. Ferromagnet/Superconductor/Ferromagnet (F/S/F) three-layers structure, in which the establishing of a Fulde-Ferrell Larkin-Ovchinnikov (FFLO) like state leads to re-entrance behavior of superconductivity, forms the core structure of the superconducting spin valve [2]. The appearance of pronounced critical temperature oscillations in such three-layers as a function of the ferromagnetic layer thicknesses and the reentrant superconductivity, are the key condition to obtain a large spin valve effect, i.e. a large shift in the critical temperature. Both phenomena have been realized experimentally in the Cu41Ni59/Nb/Cu41Ni59 three-layers, the results of investigation are presented.