Magnetic Eigenmodes in Chains of Coupled φ0-Josephson Junctions with Ferromagnetic Weak Links

被引：1

作者：

Bobkov, G. A. ^{[1
]}

Bobkova, I. V. ^{[1
,2
]}

Bobkov, A. M. ^{[1
]}

机构：

[1] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia

[2] Natl Res Univ Higher Sch Econ, Moscow 101000, Russia

来源：

JETP LETTERS | 2024年 / 119卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

PHASE-SHIFT; FIELD;

D O I：

10.1134/S0021364023604013

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A coupled chain of superconductor/ferromagnet/superconductor (S/F/S) with anomalous ground phase shift phi 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.

引用

页码：251 / 260

页数：10

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