thin superconducting films
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2020 ◽  
Vol 42 (8) ◽  
pp. 1043-1054
Author(s):  
A. A. Kalenyuk ◽  
◽  
S. I. Futimsky ◽  
V. S. Flis ◽  
V. O. Moskaliuk ◽  
...  

2020 ◽  
Vol 33 (7) ◽  
pp. 1911-1916
Author(s):  
Antonio Leo ◽  
Gaia Grimaldi ◽  
Nadia Martucciello ◽  
Francesco Avitabile ◽  
Sandro Pace ◽  
...  

2019 ◽  
Vol 61 (9) ◽  
pp. 1722
Author(s):  
С.С. Уставщиков ◽  
А.Ю. Аладышкин ◽  
В.В. Курин ◽  
В.А. Маркелов ◽  
А.И. Елькина ◽  
...  

Temperature dependence of linear electrodynamic response of thin-film hybrid structures superconductor (MoN) — normal metal (Al) with large ratio of normal-state conductivities was studied theoretically and experimentally. Low-frequency measurements of the mutual inductance of two coils with a sample placed between them indicated an increase in magnetic screening ability of the superconductor – normal metal (SN) hybrid structures at liquid helium temperatures as $d_Al$ increases, where $d_Al$ is the thickness of the Al layer. Measurements of the frequency shift $\delta f$ of the microwave dielectric resonator, which was in contact with the SN samples as a function of temperature and $d_Al$ demonstrated that (i) type of the $\delta f(T)$ dependence depends significantly on $d_Al$ and (ii) the shift of resonant frequency of the SN structures at temperatures close to the critical temperature Tc cannot be approximated by a functional dependence $const/(1–T/T_c)$, which is typical for thin superconducting films. Numerical calculations performed within the Usadel model describe the observed effects quite well. Thus, the mentioned anomalies of the electrodynamic properties of the SN hybrid structures can be explained by an appearance of a mini-gap in the spectrum of quasi-particle excitation caused by the proximity effect in the normal metal layer, which depends on $d_Al$ as well as by the high conductivity of the Al layer.


Author(s):  
B.A. Gurovich ◽  
K.E. Prikhodko ◽  
D.A. Komarov ◽  
M.M. Dement'eva ◽  
L.V. Kutuzov

2018 ◽  
Vol 20 (8) ◽  
pp. 083049 ◽  
Author(s):  
E C Marino ◽  
D Niemeyer ◽  
Van Sérgio Alves ◽  
T H Hansson ◽  
Sergej Moroz

2017 ◽  
Vol 86 (8) ◽  
pp. 083701 ◽  
Author(s):  
Gertrud Zwicknagl ◽  
Simon Jahns ◽  
Peter Fulde

2017 ◽  
Vol 27 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Yuliya Korneeva ◽  
Irina Florya ◽  
Sergey Vdovichev ◽  
Mariya Moshkova ◽  
Nikita Simonov ◽  
...  

2016 ◽  
Vol 30 (25) ◽  
pp. 1650183 ◽  
Author(s):  
Yu. N. Ovchinnikov

The effect of spin-orbit (SO) interaction on the formation of the critical states in thin superconducting films in magnetic field oriented along the film is investigated. Hereby, the case of interband pairing is considered. It was found that eight branches exist in the plane of two parameters [Formula: see text] determined by the value of magnetic field and SO interaction. Six modes leads to inhomogeneous states with different values of the impulse [Formula: see text]. Each state is doubly degenerate over direction of impulse [Formula: see text]. The parameter values at critical point are found for all eight branches in explicit form for zero temperature. The optimal two branches are estimated, corresponding to largest critical magnetic field value for given SO interaction.


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