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The superconducting critical temperature $T_C$ of a superconductor/ferromagnet (S/F) bilayer with spin-flip scatterings at the interface is calculated as a function of the ferromagnet thickness $d_F$ in the dirty limit employing the Usadel…

Superconductivity · Physics 2007-05-23 Hyeonjin Doh , Han-Yong Choi

Proximity effect at superconductor/antiferromagnet (S/AF) interfaces, which manifests itself as generation of Neel-type triplet correlations, leads to sensitivity of the superconducting critical temperature to the mutual orientation of the…

We study superconductivity in a normal metal, arising from effective electron-electron interactions mediated by spin-fluctuations in a neighboring antiferromagnetic insulator. Introducing a frustrating next-nearest neighbor interaction in a…

Superconductivity · Physics 2021-01-04 Eirik Erlandsen , Asle Sudbø

The proximity effect from a spin-triplet $p_x$-wave superconductor to a dirty normal-metal has been shown to result in various unusual electromagnetic properties, reflecting a cooperative relation between topologically protected zero-energy…

Superconductivity · Physics 2021-09-17 Satoshi Ikegaya , Jaechul Lee , Andreas P. Schnyder , Yasuhiro Asano

One of the most famous proximity effects at ferromagnet/superconductor (F/S) interfaces is partial conversion of singlet superconductivity to triplet pairing correlations. Due to the presence of macroscopic exchange field in the ferromagnet…

Superconductivity · Physics 2023-11-28 G. A. Bobkov , V. M. Gordeeva , A. M. Bobkov , I. V. Bobkova

Conducting altermagnets have recently emerged as intriguing materials supporting strongly spin-polarized currents without magnetic stray fields. We demonstrate that altermagnets enable three key functionalities, merging superconductivity…

Superconductivity · Physics 2024-10-23 Hans Gløckner Giil , Bjørnulf Brekke , Jacob Linder , Arne Brataas

Investigating the microscopic details of the proximity effect is crucial for both key experimental applications and fundamental inquiries into nanoscale devices featuring superconducting elements. In this work, we develop a framework…

Mesoscale and Nanoscale Physics · Physics 2024-12-11 Siddhant Midha , Roshni Singh , Kaveh Gharavi , Jonathan Baugh , Bhaskaran Muralidharan

We propose a novel experiment to identify the symmetry of superconductivity on the basis of theoretical results for differential conductance of a normal metal connected to a superconductor. The proximity effect from the superconductor…

Superconductivity · Physics 2007-08-13 Yasuhiro Asano , Yukio Tanaka , Alexander A. Golubov , Satoshi Kashiwaya

We explore the role of proximity-induced odd-frequency pairing in the thermoelectricity of a ferromagnet when coupled to a conventional $s$-wave spin-singlet superconductor through a spin-active interface. By varying both the polarization…

Superconductivity · Physics 2020-09-18 Paramita Dutta , Kauê R. Alves , Annica M. Black-Schaffer

We predict a supercurrent-driven N\'eel spin-orbit torque in a superconductor/$d$-wave altermagnet heterostructure, associated with the emergence of spin-triplet correlations. The effect can be understood as a consequence of the…

Mesoscale and Nanoscale Physics · Physics 2026-04-15 Hamed Vakili , Moaz Ali , Igor Žutić , Alexey A. Kovalev

An antiferromagnetic insulator (AFI) bearing a compensated interface to an adjacent conventional superconductor (S) has recently been predicted to generate N\'eel triplet Cooper pairs, whose amplitude alternates sign in space. Here, we…

Mesoscale and Nanoscale Physics · Physics 2023-10-20 Lina Johnsen Kamra , Simran Chourasia , G. A. Bobkov , V. M. Gordeeva , I. V. Bobkova , Akashdeep Kamra

The existence of spin-triplet superconductivity in non-collinear magnetic heterostructures with superconductors is by now well established. This observation lays the foundation of superconducting spintronics with the aim to create a…

Superconductivity · Physics 2019-04-05 I. V. Bobkova , A. M. Bobkov , Wolfgang Belzig

The proximity induced pair potential in a topological insulator-superconductor hybrid features an interesting superposition of a conventional spin-singlet component from the superconductor and a spin-triplet one induced by the surface state…

Mesoscale and Nanoscale Physics · Physics 2015-11-24 Pablo Burset , Bo Lu , Grigory Tkachov , Yukio Tanaka , Ewelina M. Hankiewicz , Bjoern Trauzettel

Considerable evidence for proximity-induced triplet superconductivity on the ferromagnetic side of a superconductor-ferromagnet (S-F) interface now exists; however, the corresponding effect on the superconductor side has hardly been…

Superconductivity · Physics 2015-09-02 Yoav Kalcheim , Oded Millo , Angelo Di Bernardo , Avardeep Pal , Jason W. A. Robinson

We study the proximity effect in superconductor-ferromagnet (SF) structure with a narrow domain wall (DW) at the SF interface. The width of the domain wall is assumed to be larger than the Fermi wave length, but smaller than other…

Superconductivity · Physics 2009-11-13 A. F. Volkov , K. B. Efetov

In conventional superconductors, electrons of opposite spins are bound into Cooper pairs. However, when the superconductor is in contact with a non-uniformly ordered ferromagnet, an exotic type of superconductivity can appear at the…

The magnetization in a superconductor induced due to the inverse proximity effect is investigated in hybrid bilayers containing a superconductor and a ferromagnetic insulator or a strongly spin-polarized ferromagnetic metal. The study is…

Superconductivity · Physics 2021-02-03 Vladimir Yagovtsev , Natalia Pugach , Matthias Eschrig

In cuprate superconductors, superconductivity is consistently accompanied by antiferromagnetism. This raises the question of a potential causal link between superconductivity and antiferromagnetic mechanisms. In this study, we consider the…

Superconductivity · Physics 2023-06-13 Kuan-Ming Hung , Tung-Ho Shieh

The effects of a strain-induced pseudomagnetic field on inter-node spin-triplet superconducting states in Weyl semimetals are studied by using the quasiclassical Eilenberger formalism. It is found that the Cooper pairing with spins parallel…

Superconductivity · Physics 2018-12-24 P. O. Sukhachov , E. V. Gorbar , I. A. Shovkovy , V. A. Miransky

Josephson junctions with a ferromagnetic metal weak link reveal a very strong decrease of the critical current compared to a normal metal weak link. We demonstrate that in the ballistic regime the presence of a small region with a…

Superconductivity · Physics 2014-06-30 A. V. Samokhvalov , R. I. Shekhter , A. I. Buzdin