Effects of nonmagnetic and magnetic impurities in the normal metal layer ofSNS junctions

1979 ◽  
Vol 36 (1) ◽  
pp. 57-66 ◽  
Author(s):  
J. Niemeyer ◽  
G. von Minnigerode
Keyword(s):  
Metal Layer ◽  
Normal Metal ◽  
Magnetic Impurities

scholarly journals Enhanced magnetic damping in La0.7Sr0.3MnO3 capped by normal metal layer

AIP Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 097148 ◽  
Author(s):  
G. Y. Luo ◽  
M. Belmeguenai ◽  
Y. Roussigné ◽  
C. R. Chang ◽  
J. G. Lin ◽  
...  
Keyword(s):  
Metal Layer ◽  
Normal Metal ◽  
Magnetic Damping

scholarly journals Proximity Effect in BSCCO Intrinsic Josephson Junctions Contacted with a Normal Metal Layer

2012 ◽  
Vol 36 ◽  
pp. 205-210
Author(s):  
Minoru Suzuki ◽  
Masayuki Koizumi ◽  
Masayuki Ohmaki ◽  
Itsuhiro Kakeya ◽  
Yu. M. Shukrinov
Keyword(s):  
Proximity Effect ◽  
Josephson Junctions ◽  
Metal Layer ◽  
Normal Metal ◽  
Intrinsic Josephson Junctions

scholarly journals СВЧ-импеданс тонкопленочных гибридных структур сверхпроводник--нормальный металл с большим отношением проводимостей

2019 ◽  
Vol 61 (9) ◽  
pp. 1722
Author(s):  
С.С. Уставщиков ◽  
А.Ю. Аладышкин ◽  
В.В. Курин ◽  
В.А. Маркелов ◽  
А.И. Елькина ◽  
...  
Keyword(s):  
Metal Layer ◽  
Functional Dependence ◽  
Low Frequency ◽  
Normal Metal ◽  
Hybrid Structures ◽  
Quasi Particle ◽  
Microwave Dielectric ◽  
Magnetic Screening ◽  
Critical Temperature Tc ◽  
Thin Superconducting Films

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.

scholarly journals Influence of magnetic impurities on charge transport in diffusive-normal-metal/superconductor junctions

2005 ◽  
Vol 71 (9) ◽  
Author(s):  
T. Yokoyama ◽  
Y. Tanaka ◽  
A. A. Golubov ◽  
J. Inoue ◽  
Y. Asano
Keyword(s):  
Charge Transport ◽  
Normal Metal ◽  
Magnetic Impurities

Numerical Modeling of the Anomalous Low-Temperature Dependence of the Tunneling Conductance of a "Dirty" N-I-N Junction

2021 ◽  
Vol 316 ◽  
pp. 1004-1010
Author(s):  
Natalia V. Kirpichenkova ◽  
Oleg I. Lozin ◽  
Anastasia A. Kosach
Keyword(s):  
Numerical Modeling ◽  
Numerical Analysis ◽  
Low Temperature ◽  
Temperature Dependence ◽  
Numerical Study ◽  
Normal Metal ◽  
Magnetic Impurities ◽  
Tunneling Conductance ◽  
Low Concentrations ◽  
Wide Range

A numerical study of the low-temperature tunneling conductance G(T) of the “dirty” (low concentrations of the same non-magnetic impurities in the I layer) N-I-N junction (N is a normal metal; I is an insulator) with random quantum jumpers penetrating the disordered I-layer is performed. In a wide range of low impurity concentrations, the dependence G(T) anomalously, both qualitatively and quantitatively, differs from the corresponding dependence G0(T) in the “pure” (without impurities in the I layer) N-I-N junction. The numerical analysis of the dependence G(T) shows the possibility of the experimental manifestation of these anomalies.

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