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An in-plane magnetic field applied to an Ising superconductor converts spin-singlet Cooper pairs to spin-triplet ones. In this work, we study a Josephson junction formed by two Ising superconductors that are proximitized by ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2022-01-03 Gaomin Tang , Raffael L. Klees , Christoph Bruder , Wolfgang Belzig

We consider two types of magnetic Josephson junctions~(JJ). They are formed by two singlet superconductors~S and magnetic layers between them so that the JJ is a heterostructure of the S$_{\text{m}}$/n/S$_{\text{m}}$ type,…

Superconductivity · Physics 2015-11-11 Andreas Moor , Anatoly F. Volkov , Konstantin B. Efetov

Josephson junctions with s-wave superconductors (S) and multiple ferromagnetic (F) layers carry spin-triplet supercurrents in the presence of magnetically inhomogeneous spin-mixer interfaces. Here, we report magnetic Josephson junctions…

The generation of $S_z=1$ triplet Cooper pairs has been predicted theoretically in superconducting-ferromagnetic hybrid heterostructures in the presence of spin-orbit coupling [F. S. Bergeret and I. V. Tokatly, Phys. Rev. B 89, 134517…

Superconductivity · Physics 2024-08-20 Ivan Kindiak , Swapna Sindhu Mishra , Andrea Migliorini , Banabir Pal , Stuart S. P. Parkin

By converting conventional spin-singlet Cooper pairs to polarized spin-triplet pairs, it is possible to sustain long-ranged spin-polarized supercurrents flowing through strongly polarized ferromagnets. Obtaining such a conversion via…

Superconductivity · Physics 2020-01-01 Johannes R. Eskilt , Morten Amundsen , Niladri Banerjee , Jacob Linder

The increased capabilities of coupling more and more materials through functional interfaces are paving the way to a series of exciting experiments and extremely advanced devices. Here we focus on the capability of magnetically…

Superconductivity with spin-polarized Cooper pairs is known to emerge by combining conventional spinless superconductors with materials that have spin-dependent interactions, such as magnetism and spin-orbit coupling. This enables a…

Superconductivity · Physics 2024-01-23 Sigrid Aunsmo , Jacob Linder

The Josephson junction under consideration is composed of two s-wave superconducting contacts deposited on the top of a two-dimensional antiferromagnet (AF). Triplet Cooper correlations in AF are provided by thin ferromagnetic spacers…

Superconductivity · Physics 2024-10-17 Anatoly G. Mal'shukov

We study the long-range triplet Josephson current in a clean junction composed of two s-wave superconductors and a normal-metal/ferromagnet/normal-metal trilayer. Through applying the bias voltages on the metal regions by two antiparallel…

Superconductivity · Physics 2015-06-18 Hao Meng , Xiuqiang Wu , Feng Mei

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

The interplay between magnetism and superconductivity is one of the central topics of condensed matter physics, which has recently been put into new light by the discovery of altermagnets. Here, we study this interplay from a fundamental…

Superconductivity · Physics 2025-07-16 Kirill Parshukov , Andreas P. Schnyder

We present a theoretical study of the Josephson coupling of two s-wave superconductors which are connected through a diffusive contact consisting of noncollinear ferromagnetic domains. First, we consider a contact with two domains with…

Superconductivity · Physics 2015-05-30 Zahra Shomali , Malek Zareyan , Wolfgang Belzig

We determine, using a self consistent method, the charge and spin currents in ballistic Josephson junctions consisting of ferromagnetic ($F$) layers sandwiched between superconducting ($S$) electrodes ($SFS$-type junctions). When there are…

Superconductivity · Physics 2015-11-24 Klaus Halterman , Oriol T. Valls , Chien-Te Wu

Josephson junctions containing three ferromagnetic layers with non-collinear magnetizations between adjacent layers carry spin-triplet supercurrent under certain conditions. The signature of the spin-triplet supercurrent is a relatively…

Superconductivity · Physics 2020-07-29 Victor Aguilar , Demet Korucu , Joseph A. Glick , Reza Loloee , W. P. Pratt , Norman O. Birge

On the basis of the Usadel equation we study a multi-terminal Josephson junction. This junction is composed by "magnetic" superconductors S$_{\text{m}}$ which have singlet pairing and are separated from the normal n~wire by spin filters so…

Superconductivity · Physics 2016-04-07 Andreas Moor , Anatoly F. Volkov , Konstantin B. Efetov

We show that a supercurrent carried by spinless singlet Cooper pairs can induce a spin accumulation in the normal metal interlayer of a Josephson junction. This phenomenon occurs when a nonequilibrium spin-energy mode is excited in the…

Superconductivity · Physics 2020-10-07 Morten Amundsen , Jacob Linder

The experimental achievements during the past year in demonstrating the existence of long-ranged spin-triplet supercurrents in ferromagnets proximity coupled to singlet superconductors open up the possibility for new interesting physics and…

Superconductivity · Physics 2012-09-25 Gábor B. Halász , M. G. Blamire , J. W. A. Robinson

We discuss transport properties of fully spin-polarized triplet superconductors, where only electrons of one spin component (along a certain axis) are paired. Due to the structure of the order parameter space, wherein phase and spin…

Superconductivity · Physics 2021-01-20 Eyal Cornfeld , Mark S. Rudner , Erez Berg

The spin superconductor state is the spin-polarized triplet exciton condensate, which can be viewed as a counterpart of the charge superconductor state. As an analogy of the charge Josephson effect, the spin Josephson effect can be…

Mesoscale and Nanoscale Physics · Physics 2024-03-01 W. Zeng , R. Shen

We consider the Josephson effect through a thin spin-orbit coupled layer in the presence of an exchange field, and discover a set of supercurrent vortices appearing in the system which can be controllably moved around in the system by…

Superconductivity · Physics 2017-08-16 Morten Amundsen , Jacob Linder