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Evidence for triplet superconductivity in Josephson junctions with ferromagnetic Cu$_{2}$MnAl-Heusler barriers

Autor: Sprungmann, D., Westerholt, K., Zabel, H., Weides, M., Kohlstedt, H.

We have studied Josephson junctions with barriers prepared from the Heusler compound Cu$_2$MnAl. In the as-prepared state the Cu$_2$MnAl layers are non ferromagnetic and the critical Josephson current density $j_{c}$ decreases exponentially with the

Externí odkaz: http://arxiv.org/abs/1003.2082

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Akademický článek

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Akademický článek

Classical analogy for the deflection of flux avalanches by a metallic layer

Autor: J Brisbois, B Vanderheyden, F Colauto, M Motta, W A Ortiz, J Fritzsche, N D Nguyen, B Hackens, O-A Adami, A V Silhanek

Publikováno v: New Journal of Physics, Vol 16, Iss 10, p 103003 (2014)

Sudden avalanches of magnetic flux bursting into a superconducting sample undergo deflections of their trajectories when encountering a conductive layer deposited on top of the superconductor. Remarkably, in some cases the flux is totally excluded fr

Externí odkaz: https://doaj.org/article/711fc02e1736428d84180f215ec921e5

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Non-equilibrium Majorana fluctuations

Autor: Smirnov, Sergey

Non-equilibrium physics of random events, or fluctuations, is a unique fingerprint of a given system. Here we demonstrate that in non-interacting systems with dynamics driven essentially by Majorana states the effective charge e*, characterizing the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0a36152c9cf2ef744e407ecf37ccefd
https://epub.uni-regensburg.de/35785/

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Majoranas with and without a 'character': hybridization, braiding and chiral Majorana number

Autor: P. Simon, Nicholas Sedlmayr, M. Guigou, C. Bena

Publikováno v: Journal of Physics C: Solid State Physics
Journal of Physics C: Solid State Physics, Institute of Physics (IOP), 2015, 27 (45), pp.455601. ⟨10.1088/0953-8984/27/45/455601⟩
Journal of Physics C: Solid State Physics, 2015, 27 (45), pp.455601. ⟨10.1088/0953-8984/27/45/455601⟩

In this paper we demonstrate under what conditions a pseudo-spin degree of freedom or character can be ascribed to the Majorana bound states (MBS) which can be created at the end of one dimensional non-interacting systems, corresponding to D, DIII an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a9462ede45e4ba250b03ff41204ea87
https://pubmed.ncbi.nlm.nih.gov/26490497

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Triplet proximity effect in superconducting heterostructures with a half-metallic layer

Autor: Alexandre I. Buzdin, Sergei V. Mironov

Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 92 (18), pp.184506 (1-11). ⟨10.1103/PhysRevB.92.184506⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 92 (18), pp.184506 (1-11). ⟨10.1103/PhysRevB.92.184506⟩

We present the Usadel theory describing the superconducting proximity effect in heterostructures with a half-metallic layer. It is shown that the full spin polarization inside the half-metals gives rise to the giant triplet spin-valve effect in super

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d07edeb67e39e9ef1c80559f781d18
http://arxiv.org/abs/1507.02429

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Influence of s–d scattering on the electron density of states in ferromagnet/superconductor bilayer

Autor: Alexandre I. Buzdin, A.V. Vedyayev, D. Gusakova, N. Ryzhanova, O. A. Kotel’nikova

Publikováno v: Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2005, 290-291, pp.74-77. ⟨10.1016/j.jmmm.2004.11.215⟩

We study the dependence of the electronic density of states (DOS) on the distance from the boundary for a ferromagnet/superconductor bilayer. We calculate the electron density of states in such structure taking into account the two-band model of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eaa2438c063409900550e9008b69175
https://doi.org/10.1016/j.jmmm.2004.11.215

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