Ferromagnetic proximity effect ina-CoxSi1−x/Nbbilayers: Role of magnetic disorder and interface transparency

2010 ◽  
Vol 82 (18) ◽  
Author(s):  
A. Alija ◽  
D. Pérez de Lara ◽  
E. M. Gonzalez ◽  
G. N. Kakazei ◽  
J. B. Sousa ◽  
...  
Keyword(s):  
Proximity Effect ◽  
Magnetic Disorder ◽  
Interface Transparency

Inhomogeneous Current Distribution in a Bimetal Ferromagnet/Superconductor Film in a Longitudinal Magnetic Field

2009 ◽  
Vol 152-153 ◽  
pp. 462-465 ◽  
Author(s):  
Maxim Avdeev ◽  
Mansur G. Khusainov ◽  
Yurii N. Proshin ◽  
Sergey Tsarevskii
Keyword(s):  
Magnetic Field ◽  
Critical Temperature ◽  
Current Distribution ◽  
Proximity Effect ◽  
Longitudinal Magnetic Field ◽  
Dirty Limit ◽  
Distribution Versus ◽  
Superconductor Film ◽  
Interface Transparency ◽  
Superconducting Current

The proximity effect of the ferromagnetic metal/superconductor (FM/S) bilayers in а external longitudinal magnetic field is considered in the dirty limit. The critical temperature and the superconducting current distribution versus applied magnetic field’s magnitude, film’s thicknesses and a transparency of the contact is calculated, with taking into account аn umklapp processes possibility on the interface of the FM/S contact. It is shown that superconducting current is strictly inhomogeneous and asymmetrical. It is shown also that the current inhomogeneity depends heavily from the FM/S interface transparency.

scholarly journals Proximity effect and interface transparency in Al/InAs-nanowire/Al diffusive junctions

2017 ◽  
Vol 32 (9) ◽  
pp. 094007 ◽  
Author(s):  
A V Bubis ◽  
A O Denisov ◽  
S U Piatrusha ◽  
I E Batov ◽  
V S Khrapai ◽  
...  
Keyword(s):  
Proximity Effect ◽  
Interface Transparency

The relaxation times of an STJ detector: Role of the proximity effect

1994 ◽  
Vol 7 (6) ◽  
pp. 951-958 ◽  
Author(s):  
E. Esposito ◽  
G. Pepe ◽  
U. Scotti di Uccio
Keyword(s):  
Proximity Effect ◽  
Relaxation Times ◽  
Stj Detector

Role of disorder in the superconducting proximity effect in a−NdNi5/Nb bilayers

2021 ◽  
Vol 104 (21) ◽  
Author(s):  
C. Cirillo ◽  
A. Leo ◽  
F. Urban ◽  
H. Bradshaw ◽  
E. Ponticorvo ◽  
...  
Keyword(s):  
Proximity Effect ◽  
Superconducting Proximity Effect

Role of proximity effect in the interpretation of experimental data on high-Tctunnel junctions

1991 ◽  
Vol 44 (21) ◽  
pp. 12026-12028 ◽  
Author(s):  
A. Di Chiara ◽  
F. Fontana ◽  
G. Peluso ◽  
F. Tafuri
Keyword(s):  
Experimental Data ◽  
Proximity Effect

scholarly journals Superconducting proximity effect and interface transparency inNb∕PdNibilayers

2005 ◽  
Vol 72 (14) ◽  
Author(s):  
C. Cirillo ◽  
S. L. Prischepa ◽  
M. Salvato ◽  
C. Attanasio ◽  
M. Hesselberth ◽  
...  
Keyword(s):  
Proximity Effect ◽  
Superconducting Proximity Effect ◽  
Interface Transparency

scholarly journals Role of initial magnetic disorder: A time-dependent ab initio study of ultrafast demagnetization mechanisms

2019 ◽  
Vol 5 (6) ◽  
pp. eaau8000 ◽  
Author(s):  
Zhanghui Chen ◽  
Lin-Wang Wang
Keyword(s):  
Density Functional ◽  
Zeeman Effect ◽  
Time Dependent ◽  
Structure Theory ◽  
Electron Interaction ◽  
Functional Theory ◽  
Spin Disorder ◽  
Magnetic Disorder ◽  
Large Systems

Despite more than 20 years of development, the underlying physics of the laser-induced demagnetization process is still debated. We present a fast, real-time time-dependent density functional theory (rt-TDDFT) algorithm together with the phenomenological atomic Landau-Lifshitz-Gilbert model to investigate this problem. Our Hamiltonian considers noncollinear magnetic moment, spin-orbit coupling (SOC), electron-electron, electron-phonon, and electron-light interactions. The algorithm for time evolution achieves hundreds of times of speedup enabling calculation of large systems. Our simulations yield a demagnetization rate similar to experiments. We found that (i) the angular momentum flow from light to the system is not essential and the spin Zeeman effect is negligible. (ii) The phonon can play a role but is not essential. (iii) The initial spin disorder and the self-consistent update of the electron-electron interaction play dominant roles and enhance the demagnetization to the experimentally observed rate. The spin disorder connects the electronic structure theory with the phenomenological three-temperature model.

scholarly journals Interface transparency and proximity effect in Nb/Cu triple layers realized by sputtering and molecular beam epitaxy

2004 ◽  
Vol 18 (1) ◽  
pp. 1-8 ◽  
Author(s):  
A Tesauro ◽  
A Aurigemma ◽  
C Cirillo ◽  
S L Prischepa ◽  
M Salvato ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Proximity Effect ◽  
Molecular Beam ◽  
Interface Transparency
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