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Related papers: Anisotropic spin-current spectroscopy of ferromagn…

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We present a theoretical investigation of anisotropic superconducting spin transport at a magnetic interface between a p-wave superconductor and a ferromagnetic insulator. Our formulation describes the ferromagnetic resonance modulations…

Superconductivity · Physics 2022-10-18 Yuya Ominato , Ai Yamakage , Mamoru Matsuo

Approaching a two-component tip made of a superconductor (S) and a ferromagnet (F) from a magnetic sample allows for two distinct tunneling processes between the ferromagnets, through S: i) Charge and spin are conserved; ii) Charge and spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. Feinberg , G. Deutscher

We theoretically investigate spin transport at the interface between the ferromagnetic insulator(FI) and a superconductor(SC). Considering a simple FI-SC interface model, we derive formulas for the spin current and spin-current noise…

Mesoscale and Nanoscale Physics · Physics 2019-04-24 T. Kato , Y. Ohnuma , M. Matsuo , J. Rech , T. Jonckheere , T. Martin

We present a microscopic theory of coherent quantum transport through a superconducting film between two ferromagnetic electrodes. The scattering problem is solved for the general case of ferromagnet/superconductor/ferromagnet (FSF)…

Superconductivity · Physics 2015-06-24 Milos Bozovic , Zoran Radovic

We address the tunneling conductance and spin inelastic tunneling spectroscopy of localized paramagnetic moments in a superconducting environment, pertaining to recent measurements on Fe-octaethylporphyrin-chloride using superconducting…

Mesoscale and Nanoscale Physics · Physics 2015-05-29 P. Berggren , J. Fransson

In this work, we study the spin transport at the Ferromagnet$|$Noncentrosymmetric Superconductor (F$|$NCSC) junction of a Ferromagnet$|$Noncentrosymmetric Superconductor$|$Ferromagnet (F$|$NCSC$|$F) spin valve. We investigate the Tunnelling…

Superconductivity · Physics 2019-10-15 Saumen Acharjee , Umananda Dev Goswami

A theoretical proposal for realizing and detecting spin supercurrent in an isotropic antiferromagnetic insulator is reported. Superfluid spin transport is achieved by inserting the antiferromagnet between two metallic reservoirs and…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 So Takei , Bertrand I. Halperin , Amir Yacoby , Yaroslav Tserkovnyak

Superfluid spin transport $-$ dissipationless transport of spin $-$ is theoretically studied in a ferromagnetic insulator with easy-plane anisotropy. We consider an open geometry where spin current is injected into the ferromagnet from one…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 So Takei , Yaroslav Tserkovnyak

At the interface between a ferromagnetic insulator and a superconductor there is a coupling between the spins of the two materials. We show that when a supercurrent carried by triplet Cooper pairs flows through the superconductor, the…

Mesoscale and Nanoscale Physics · Physics 2021-11-16 Lina G. Johnsen , Haakon T. Simensen , Arne Brataas , Jacob Linder

We report transport studies of hybrid Josephson junctions based on semiconducting InAs nanowires with fully overlapping epitaxial ferromagnetic insulator EuS and superconducting Al partial shells. Current-biased measurements reveal a…

Mesoscale and Nanoscale Physics · Physics 2026-03-05 J. Zhao , A. Mazanik , D. Razmadze , Y. Liu , P. Krogstrup , F. S. Bergeret , S. Vaitiekėnas

Cooper pairs in superconductors are normally spin singlet. Nevertheless, recent studies suggest that spin-triplet Cooper pairs can be created at carefully engineered superconductor-ferromagnet interfaces. If Cooper pairs are spin-polarized…

Superconductivity · Physics 2020-09-01 Lailai Li , Yuelei Zhao , Xixiang Zhang , Young Sun

We investigate transport properties of junctions between two spin-split superconductors linked by a spin-polarized tunneling barrier. The spin-splitting fields in the superconductors (S) are induced by adjacent ferromagnetic insulating (FI)…

We study tunneling currents in a model consisting of two non-unitary ferromagnetic spin-triplet superconductors separated by a thin insulating layer. We find a novel interplay between ferromagnetism and superconductivity, manifested in the…

Superconductivity · Physics 2007-05-23 M. S. Gronsleth , J. Linder , J. -M. Borven , A. Sudbo

We study tunneling currents in a model consisting of two non-unitary ferromagnetic spin-triplet superconductors separated by a thin insulating layer. We find a novel interplay between ferromagnetism and superconductivity, manifested in the…

Superconductivity · Physics 2007-05-23 M. Gronsleth , J. Linder , J. -M-Borven , A. Sudbo

A conventional superconductor sandwiched between two ferromagnets can maintain coherent equilibrium spin current. This spin supercurrent results from the rotation of odd-frequency spin correlations induced in the superconductor by the…

Superconductivity · Physics 2025-02-10 Risto Ojajärvi , F. S. Bergeret , M. A. Silaev , Tero T. Heikkilä

Equal-spin Cooper pairs are pivotal building blocks for superconducting spintronics devices. In recent experiments, unusual behavior was observed in ferromagnet/ferromagnet/superconductor devices when a precession of the magnetization was…

Superconductivity · Physics 2023-01-19 X. Montiel , M. Eschrig

Spin-triplet Cooper pairs induced in ferromagnets form the centrepiece of the emerging field of superconducting spintronics [1,2]. Usually the focus of research is on the spin polarization of the triplets, potentially enabling…

Mesoscale and Nanoscale Physics · Physics 2018-02-07 Kaveh Lahabi , Morten Amundsen , Jabir Ali Ouassou , Ewout Beukers , Menno Pleijster , Jacob Linder , Paul Alkemade , Jan Aarts

We investigate spin-dependent quasiparticle and Cooper-pair transport through a central node interfaced with two superconductors and two ferromagnets. We demonstrate that voltage biasing of the ferromagnetic contacts induces superconducting…

Superconductivity · Physics 2020-09-04 Ali Rezaei , Robert Hussein , Akashdeep Kamra , Wolfgang Belzig

We study tunneling conductance in normal metal / insulator / ferromagnetic superconductor junctions. The tunneling spectra show a clear difference between spin-singlet s-wave pairing, spin-triplet opposite spin pairing and spin-triplet…

Superconductivity · Physics 2015-05-13 T. Yokoyama , Y. Tanaka

We study the Josephson effect in a triplet superconductor--ferromagnet--singlet superconductor junction. We show that the interaction of tunneling Cooper pairs with the interface magnetization can permit a Josephson current at the lowest…

Superconductivity · Physics 2013-08-22 P. M. R. Brydon , Wei Chen , Yasuhiro Asano , Dirk Manske
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