Complete suppression and Néel triplets-mediated exchange in antiferromagnet-superconductor-antiferromagnet trilayers
arXiv:2306.11373 · doi:10.1103/PhysRevB.108.144506
Abstract
An antiferromagnetic insulator (AFI) bearing a compensated interface to an adjacent conventional superconductor (S) has recently been predicted to generate Néel triplet Cooper pairs, whose amplitude alternates sign in space. Here, we theoretically demonstrate that such Néel triplets enable control of the superconducting critical temperature in an S layer via the angle between the Néel vectors of two enclosing AFI layers. This angle dependence changes sign with the number of S monolayers providing a distinct signature of the Néel triplets. Furthermore, we show that the latter mediate a similarly distinct exchange interaction between the two AFIs' Néel vectors.
7 pages, 4 figures
References in corpus (12)
- Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve
- Superconducting triplet spin valve
- Spin-transfer torques in anti-ferromagnetic metals from first principles
- Observation of Antiferromagnetic Magnon Pseudospin Dynamics and the Hanle effect
- Ab-initio GMR and current-induced torques in Au/Cr multilayers
- Néel proximity effect at antiferromagnet/superconductor interfaces
- Electrical and Thermal Transport in Antiferromagnet-Superconductor Junctions
- Magnetic control of superconducting heterostructures using compensated antiferromagnets
- Magnetization reorientation due to the superconducting transition in heavy-metal heterostructures
- Generation of spin-triplet Cooper pairs via a canted antiferromagnet
- Penetration depth of Cooper pairs in the IrMn antiferromagnet
- Modulation of superconductivity by spin canting in a hybrid antiferromagnet/superconductor oxide
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- Triplet correlations in superconductor/antiferromagnet heterostructures: dependence on type of antiferromagnetic ordering
- Odd-frequency Pairing in Josephson Junctions Coupled by Magnetic Textures