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КОНДЕНСИРОВАННОЕ СОСТОЯНИЕ
Magnetic eigenmodes in chains of coupled $\varphi_0$-Josephson junctions with ferromagnetic weak links
G. A. Bobkova, I. V. Bobkovaab, A. M. Bobkova a Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow region, 141700 Russia
b HSE University, Moscow, 101000 Russia
Аннотация:
A coupled chain of superconductor/ferromagnet/superconductor (S/F/S) with anomalous ground phase shift ${{\varphi }_{0}}$ represents a system realizing long-range interaction between magnetic moments of the weak links. The interaction is of magnetoelectric origin and is mediated by the condensate phase of superconductors. The system is a paradigmic platform for investigation of collective magnetic states governed by the superconducting phase. Here we study the magnetic eigenmodes of such a system and demonstrate that the eigenfrequencies are determined by the magnetic configuration of the whole system and are controlled by the superconducting phase. Depending on the orientation of the magnetic easy axis the eigenmodes can be very different ranging from individual oscillations of different magnets to highly-cooperative behavior.
Поступила в редакцию: 17.11.2023
Образец цитирования:
G. A. Bobkov, I. V. Bobkova, A. M. Bobkov, “Magnetic eigenmodes in chains of coupled $\varphi_0$-Josephson junctions with ferromagnetic weak links”, Письма в ЖЭТФ, 119:3 (2024), 253–254; JETP Letters, 119:3 (2024), 251–260
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl7153 https://www.mathnet.ru/rus/jetpl/v119/i3/p253
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