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相关论文: Proximity effect gaps in S/N/FI structures

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We investigate spin dependent transport in hybrid superconductor(S)--normal-metal(N)--ferromagnet(F) structures under conditions of proximity effect. We demonstrate the feasibility of the absolute spin-valve effect for a certain interval of…

介观与纳米尺度物理 · 物理学 2009-11-07 Daniel Huertas-Hernando , Yu. V. Nazarov , W. Belzig

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…

超导电性 · 物理学 2015-11-30 S. Mironov , A. Buzdin

Proximity effect in thin-film superconductor (S)/magnet heterostructures with different types of magnets including ferromagnets, antiferromagnets and altermagnets is widely considered in the framework of an effective model, where the…

超导电性 · 物理学 2026-02-16 V. A. Bobkov , G. A. Bobkov , I. V. Bobkova

Resonant proximity effect in the normal metal / insulator / diffusive ferromagnet / insulator / $s$- and d-wave superconductor (N/I/DF/I/S) junctions is studied for various regimes by solving the Usadel equation with the generalized…

超导电性 · 物理学 2009-11-11 T. Yokoyama , Y. Tanaka , A. A. Golubov

We study the superconducting proximity effect in a superconductor-ferromagnet-superconductor (SFS) heterostructure, containing a domain wall in the ferromagnetic region. For the ferromagnet we assume an alloy with an exchange splitting of…

超导电性 · 物理学 2009-11-11 Alexander Konstandin , Juha Kopu , Matthias Eschrig

We consider the proximity effect in multiterminal ferromagnet superconductor (FSF) hybrid structures in which two or three electrodes are connected to a superconductor. We show that two competing effects take place in these systems: (i)…

介观与纳米尺度物理 · 物理学 2009-11-07 H. Jirari , R. Mélin , N. Stefanakis

The very special characteristic of the proximity effect in superconductor-ferromagnet systems is the damped oscillatory behavior of the Cooper pair wave function in a ferromagnet. In some sense, this is analogous to the inhomogeneous…

超导电性 · 物理学 2009-11-11 A. I. Buzdin

The spatial variations of the pair amplitude, and the local density of states in d-wave or s-wave superconductor-ferromagnet hybrid structures are calculated self consistently using the Bogoliubov-deGennes formalism within the two…

介观与纳米尺度物理 · 物理学 2007-05-23 N. Stefanakis , R. Mélin

We present an analytical study of the proximity effect in ferromagnet/superconductor (F/S) heterostructures, allowing for an arbitrary magnetic exchange energy as well as arbitrary impurity and spin-flip scattering rates within a…

超导电性 · 物理学 2009-11-13 Jacob Linder , Malek Zareyan , Asle Sudbø

We present an extensive theoretical investigation of the proximity effects that occur in Ferromagnet/Superconductor ($F/S$) systems. We use a numerical method to solve self consistently the Bogoliubov-de Gennes equations in the continuum.…

超导电性 · 物理学 2009-11-07 Klaus Halterman , Oriol T. Valls

We theoretically study self-consistent proximity effects in finite-sized systems consisting of ferromagnet ($\rm F$) layers coupled to an $s$-wave superconductor ($\rm S$). We consider both $\rm SF_1F_2$ and $\rm SH$ nanostructures, where…

超导电性 · 物理学 2018-10-30 Klaus Halterman , Mohammad Alidoust

A strong mutual influence of superconductors (S) and ferromagnetic (F) conductors in hybrid F/S (Ni/Al) nanostructures is observed. The magnitude of a proximity-induced conductance on the F-side is more than two orders larger than that…

超导电性 · 物理学 2009-10-31 V. T. Petrashov , I. A. Sosnin , I. Cox , A. Parsons , C. Troadec

We consider the proximity effects in hybrid superconductor (S) - ferromagnet (F) structures drawing attention to the induced ferromagnetism of the S metal. The analysis is based on a quasiclassical theory of proximity effect for metals in…

超导电性 · 物理学 2007-05-23 V. N. Krivoruchko , V. N. Varyukhin

We theoretically study the magnetic proximity effect in the three dimensional (3D) topological insulator/ferromagnetic insulator (TI/FMI) structures in the context of possibility to manage the Dirac helical state in TI. Within continual…

材料科学 · 物理学 2014-06-30 V. N. Men'shov , V. V. Tugushev , S. V. Eremeev , P. M. Echenique , E. V. Chulkov

Heterostructures consisting of a cuprate superconductor YBa2Cu3O7x and a ruthenate/manganite (SrRuO3/La0.7Sr0.3MnO3) spin valve have been studied by SQUID magnetometry, ferromagnetic resonances and neutron reflectometry. It was shown that…

Magnetic proximity effect between topological insulator (TI) and ferromagnetic insulator (FMI) is considered to have great potential in spintronics. However, a complete determination of interfacial magnetic structure has been highly…

介观与纳米尺度物理 · 物理学 2015-04-13 Mingda Li , Wenping Cui , Jin Yu , Zuyang Dai , Zhe Wang , Ferhat Katmis , Wanlin Guo , Jagadeesh Moodera

A ferromagnetic insulator (FI) attached to a conventional superconductor (S) changes drastically the properties of the latter. Specifically, the exchange field at the FI/S interface leads to a splitting of the superconducting density of…

超导电性 · 物理学 2020-09-21 Tero T Heikkilä , Mikhail Silaev , Pauli Virtanen , F. Sebastian Bergeret

We study the electronic density of states in a mesoscopic superconductor near a transparent interface with a ferromagnetic metal. In our tunnel spectroscopy experiment, a substantial density of states is observed at sub-gap energies close…

介观与纳米尺度物理 · 物理学 2015-06-24 M. A. Sillanpaa , T. T. Heikkila , R. K. Lindell , P. J. Hakonen

The spin-triplet correlations in superconducting spin valve structures arising in the presence of noncollinear textures of magnetic moment are shown to enhance strongly the electromagnetic proximity effect, i. e. the long-range leakage of…

超导电性 · 物理学 2019-08-19 Zh. Devizorova , S. V. Mironov , A. S. Mel'nikov , A. Buzdin

We investigate the effect of an inhomogeneous exchange field on the proximity effect in superconductor-ferromagnet hybrid structures within the quasi-classical theory of superconductivity. As an example we study the proximity effect in a…

超导电性 · 物理学 2007-05-23 T. Champel , M. Eschrig
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