Abstract
In this work we propose a hybrid device based on a long Josephson junction (JJ) coupled inductively to an external ferromagnetic (FM) layer. The long JJ in a zero-field operation mode induces a localized AC magnetic field in the FM layer and enables a synchronized magnetostatic standing wave. The magnetostatic wave induces additional dissipation for soliton propagation in the junction and also enables a phase locking (resonant soliton synchronization) at a frequency of natural ferromagnetic resonance. The later manifests itself as an additional constant voltage step on the current-voltage characteristics at the corresponding voltage. The proposed device allows to study magnetization dynamics of individual micro-scaled FM samples using just DC technique, and also it provides additional phase locking frequency in the junction, determined exclusively by characteristics of the ferromagnet.
Original language | English |
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Article number | 054005 |
Journal | Superconductor science and technology |
Volume | 30 |
Issue number | 5 |
DOIs | |
Publication status | Published - 18 Apr 2017 |
Keywords
- ferromagnetic resonance
- Josephson soliton synchronization
- long Josephson junction