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Cavity spintronics recently heralded non-local magnonic signal transfer between magnetic samples. Here we show that by including superconductors in the cavity, we can make use of these principles to bring composite…

介观与纳米尺度物理 · 物理学 2020-12-30 Andreas T. G. Janssønn , Haakon T. Simensen , Akashdeep Kamra , Arne Brataas , Sol H. Jacobsen

Coupling of space-separated oscillators is interesting for quantum and communication technologies. In this work, it is shown that two antiferromagnetic oscillators placed inside an electromagnetic cavity couple cooperatively to its…

介观与纳米尺度物理 · 物理学 2023-06-06 M. Białek , W. Knap , J. -Ph. Ansermet

We develop a microscopic theory of tunneling spin transport at the magnetic interface between a ferromagnetic insulator and a ferromagnetic superconductor (FSC) driven by ferromagnetic resonance. We show that the spin susceptibilities of…

超导电性 · 物理学 2023-05-31 Hiroshi Funaki , Ai Yamakage , Mamoru Matsuo

The study of the response of superconducting hybrid structures with magnetic materials to microwave irradiation is necessary for the development of effective superconducting spintronic devices. The role of the magnetic proximity effect…

超导电性 · 物理学 2024-10-22 Dmitriy Seleznyov , Yaroslav Turkin , Natalia Pugach , Lingling Tao

A ferromagnetic insulator (FI) attached to a conventional superconductor (S) changes drastically the properties of the latter. Specifically, the exchange field at the FI/S interface leads to a splitting of the superconducting density of…

超导电性 · 物理学 2020-09-21 Tero T Heikkilä , Mikhail Silaev , Pauli Virtanen , F. Sebastian Bergeret

We investigate theoretically the interplay of proximity effects due to the presence of a superconductor and normal ferromagnetic leads on the formation of the spintronic quadrupolar exchange field in a large-spin molecule. We show that the…

介观与纳米尺度物理 · 物理学 2019-07-03 Krzysztof P. Wójcik , Maciej Misiorny , Ireneusz Weymann

We study dissipative spin-spin coupling in dispersive regime mediated by virtual photons in a microwave cavity. Dissipative coupling between magnetization of each magnetic material and the cavity photons is established by means of two phase…

介观与纳米尺度物理 · 物理学 2019-07-17 Vahram L. Grigoryan , Ke Xia

We show that spin-orbit coupling at the interface between a superconducting film of the finite lateral size and the underlying ferromagnetic insulator with in-plane exchange field gives rise to a series of non-reciprocal effects provided…

超导电性 · 物理学 2023-12-21 A. V. Putilov , S. V. Mironov , A. I. Buzdin

We show strong coupling between antiferromagnetic magnons and microwave cavity photons at both high and externally controllable magnon frequencies. Using the fully quantum mechanical path-integral method, we study an antiferromagnetic…

介观与纳米尺度物理 · 物理学 2025-09-03 Henrik T. Kaarbø , Henning G. Hugdal , Sol H. Jacobsen

At a superconductor interface with a ferromagnetic insulator (FI), the FI acts to induce a local exchange field within the S layer, which in the presence of spin-orbit interaction promotes a phase modulated superconducting state. Here we…

超导电性 · 物理学 2019-05-08 J. W. A. Robinson , A. V. Samokhvalov , A. I. Buzdin

We investigate the potential to induce long-range spin interactions in a Mott insulator via the quantum electromagnetic field of a cavity. The coupling between light and spins is inherently non-linear, and occurs via multi-photon processes…

强关联电子 · 物理学 2024-04-12 Paul Fadler , Jiajun Li , Kai Phillip Schmidt , Martin Eckstein

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…

介观与纳米尺度物理 · 物理学 2019-04-24 T. Kato , Y. Ohnuma , M. Matsuo , J. Rech , T. Jonckheere , T. Martin

Using spin polarized neutron reflectivity experiments, we demonstrate an unusual proximity behaviour when the superconductor (SC) and the ferromagnet (FM) are coupled through an insulator (I) in YBa2Cu3O7-{\delta} (SC)/SrTiO3…

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…

介观与纳米尺度物理 · 物理学 2015-05-29 P. Berggren , J. Fransson

We develop a theory of the spin battery effect in superconductor/ferromagnetic insulator (SC/FI) systems taking into account the magnetic proximity effect. We demonstrate that the spin-energy mixing enabled by the superconductivity leads to…

介观与纳米尺度物理 · 物理学 2021-06-30 Risto Ojajärvi , Tero T. Heikkilä , P. Virtanen , M. A. Silaev

We study superconductivity on the surface of a topological insulator, mediated by magnetic fluctuations in an adjacent ferromagnetic or antiferromagnetic insulator. Superconductivity can arise from effective interactions between helical…

超导电性 · 物理学 2020-03-06 Eirik Erlandsen , Arne Brataas , Asle Sudbø

Superconducting spintronics has emerged in the last decade as a promising new field that seeks to open a new dimension for nanoelectronics by utilizing the internal spin structure of the superconducting Cooper pair as a new degree of…

Proximity effect in thin-film superconductor (S)/magnet heterostructures with different types of magnets including ferromagnets, antiferromagnets and altermagnets is widely considered in the framework of an effective model, where the…

超导电性 · 物理学 2026-02-16 V. A. Bobkov , G. A. Bobkov , I. V. Bobkova

We demonstrate microwave-mediated distant magnon-magnon coupling on a superconducting circuit platform, incorporating chip-mounted single-crystal Y$_3$Fe$_5$O$_{12}$ (YIG) spheres. Coherent level repulsion and dissipative level attraction…

Using electrical detection of a strongly coupled spin-photon system comprised of a microwave cavity mode and two magnetic samples, we demonstrate the long distance manipulation of spin currents. This distant control is not limited by the…

材料科学 · 物理学 2017-06-02 Lihui Bai , Michael Harder , Paul Hyde , Zhaohui Zhang , Can-Ming Hu , Y. P. Chen , John Q. Xiao
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