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We present a theoretical study of a ferromagnet/s-wave superconductor junction to investigate the signatures of induced triplet correlations in the system. We apply the extended BTK-formalism and allow for an arbitrary magnetization…

Superconductivity · Physics 2007-05-23 J. Linder , A. Sudbø

We investigate the behavior of magnetic impurities placed on the surface of superconductor thin films with spin-orbit coupling. Our study reveals long-range interactions between the impurities, which decay according to a power law, mediated…

Superconductivity · Physics 2023-07-26 Yao Lu , I. V. Tokatly , F. Sebastian Bergeret

We study graphene ferromagnet/superconductor/ferromagnet (F/S/F) nanostructures via a microscopic self-consistent Dirac Bogoliubov-de Gennes formalism. We show that as a result of proximity effects, experimentally accessible spin switching…

Superconductivity · Physics 2014-03-05 Klaus Halterman , Oriol T. Valls , Mohammad Alidoust

We discuss the possibility of coexistence of spin density wave (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We…

Superconductivity · Physics 2009-11-11 Wei Zhang , C. A. R. Sa de Melo

We investigate theoretically how the proximity effect in superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling manifests in the density of states and critical temperature. To describe a general scenario, we allow…

Superconductivity · Physics 2015-08-04 Sol H. Jacobsen , Jabir Ali Ouassou , Jacob Linder

We predict that long-range triplet correlations (LRTC) in superconductor/ferromagnet (S/F) hybrids with extrinsic impurity spin-orbit coupling (SOC) can be generated and manipulated by supercurrent flowing in the superconducting leads along…

Superconductivity · Physics 2022-04-11 A. A. Mazanik , I. V. Bobkova

The close interplay between superconductivity and antiferromagnetism in several quantum materials can lead to the appearance of an unusual thermodynamic state in which both orders coexist microscopically, despite their competing nature. A…

Superconductivity · Physics 2017-08-02 Dalson Eloy Almeida , Rafael M. Fernandes , Eduardo Miranda

Superconductivity originates from the formation of bound (Cooper) pairs of electrons that can move through the lattice without resistance below the superconducting transition temperature $T_c$. Electron Cooper pairs in most superconductors…

We present a theoretical framework for investigating superconducting proximity effect in altermagnet (AM)-superconductor (SC) heterostructures. In general, AMs, characterized by vanishing net magnetization but spin-split electronic spectra,…

Superconductivity · Physics 2026-04-20 Ohidul Alam , Amartya Pal , Paramita Dutta , Arijit Saha

We examine the appearance of a spontaneous bulk spin current in a triplet superconductor in contact with a metallic ferromagnet. The spin current results from the spin-flip of Cooper pairs upon reflection from the interface with the…

Superconductivity · Physics 2009-12-23 P. M. R. Brydon

A magnetic adatom chain, proximity coupled to a conventional superconductor with spin-orbit coupling, exhibits locally an odd-parity, spin-triplet pairing amplitude. We show that the singlet-triplet junction, thus formed, leads to a net…

Superconductivity · Physics 2018-06-15 Narayan Mohanta , Arno P. Kampf , Thilo Kopp

This paper explores the potential for spin-triplet superconductivity in molecular beam epitaxy grown PbTe/SnTe semiconductor heterostructures. We present convincing evidence for spin-triplet pairing by soft point-contact spectroscopy…

In ferromagnets, magnons may condense into a single quantum state. Analogous to superconductors, this quantum state may support transport without dissipation. Recent works suggest that longitudinal spin transport through a thin-film…

Mesoscale and Nanoscale Physics · Physics 2015-12-09 Hans Skarsvåg , Cecilia Holmqvist , Arne Brataas

We observe an unconventional superconducting minigap induced into a ferromagnet SrRuO$_3$ from a spin-triplet superconductor Sr$_2$RuO$_4$ using a Au/SrTiO$_3$/SrRuO$_3$/Sr$_2$RuO$_4$ tunnel junction. Voltage bias differential conductance…

We use the Hubbard type model to describe the coexistence between superconductivity (SC) and ferromagnetism (F). Our Hamiltonian contains single-site and two-site interactions. All inter-site interactions will have included the inter-site…

Superconductivity · Physics 2009-01-15 Grzegorz Górski , Krzysztof Kucab , Jerzy Mizia

Scanning tunneling spectroscopy measurements conducted on epitaxially grown bilayers of half-metallic ferromagnetic La2/3Ca1/3MnO3 (LCMO) on superconducting (SC) (100)YBa2Cu3O7-delta (YBCO) reveal long-range penetration of superconducting…

Superconductivity · Physics 2015-05-20 Yoav Kalcheim , Tal Kirzhner , Gad Koren , Oded Millo

A superconductor (SC) in proximity to a ferromagnetic insulator (FMI) is predicted to exhibit mixed singlet and triplet pair correlations. The magnetic proximity effect of FMI spin-splits the energy of Bogoliubov excitations and leads to a…

Mesoscale and Nanoscale Physics · Physics 2024-07-04 Chen-How Huang , Anastasiia Skurativska , F. Sebastian Bergeret , Miguel A. Cazalilla

We investigate the superconducting proximity effect in a clean magnetic structure consisting of two ferromagnetic layered domains with antiparallel magnetizations in contact with a superconductor. Within the quasiclassical Green's function…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. A. Maleki , M. Zareyan

The competition between antiferromagnetism and the $d+id$ superconducting state is studied in a model with near and next near neighbour interactions in the absence of any on-site repulsion. A mean field study shows that it is possible to…

Strongly Correlated Electrons · Physics 2009-11-07 Tulika Maitra , H. Beck , A. Taraphder

The microscopic origin of triplet superconductivity in Sr$_2$RuO$_4$ is discussed, paying attention to the role of Coulomb interaction, $U_{pp}$, at the O site. It is shown on the $d$-$p$ model that $U_{pp}$ induces a ferromagnetic exchange…

Strongly Correlated Electrons · Physics 2009-11-11 K. Hoshihara , K. Miyake