Possible method to observe the breathing mode of a magnetic domain wall in the Josephson junction

Mori, Michiyasu; Koshibae, Wataru; Hikino, S.; Maekawa, Sadamichi

doi:10.1088/0953-8984/26/25/255702

Cited by 7 publications

(5 citation statements)

References 40 publications

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“…22 Experimentally, the hybridized waves are expected to reveal themselves mainly through substantial changes in the number, position and shape of Fiske and Shapiro steps on the I-V characteristics of S/F/S junctions. [22][23][24][25][26][27][28][29][30][31][32] Another remarkable manifestation of such coupling between plasma-like and spin waves is the possibility to stimulate the magnetization reversal in the F layer by applying the current through the junction. 24,[33][34][35][36] This may provide the effective mechanism of the magnetic moment control in the devices of superconducting spintronics.…”

Section: Introductionmentioning

confidence: 99%

Collective magnetic and plasma excitations in Josephson $ψ$ junctions

Mironov,

Buzdin

2021

Preprint

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We show that Josephson ψ junctions with the half-metallic (HM) weak link coupled to the superconducting (S) electrodes through the ferromagnetic (F) layers host collective excitations of magnetic moment and the Josephson phase. This results in the shift of the ferromagnetic resonance frequency, anomalies in the current-voltage characteristics and appearance of additional magnetic anisotropy in the F layers. In contrast to the previously studied S/F/S junctions, the coupling between magnetic and plasma modes emerges even in the long wavelength limit. Such coupling is shown to enable the controllable magnetization reversal in the F layer governed by the d.c. current pulse which provides the effective mechanism for the magnetic moment manipulation in the devices of superconducting spintronics.

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Section: Introductionmentioning

confidence: 99%

Collective magnetic and plasma excitations in Josephson $ψ$ junctions

Mironov,

Buzdin

2021

Preprint

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“…In Ref. 44 the authors show that the breathing of the domain wall leads to the appearance of staircase structure in the IV-characteristic of SFS junction, but they did not investigate its relation with DS structure. The IV-characteristics of superconductor-quantum spin Hall insulator-superconductor system 45 in the presence of microwave radiation exhibit a structure where odd steps are completely suppressed, implying a fractional Josephson effect.…”

Section: Introductionmentioning

confidence: 99%

Devil's staircase structures in $φ_{0}$ junction

Nashaat,

Shukrinov,

Ellithi

et al. 2019

Preprint

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The superconductor-ferromagnet-superconductor ϕ0 junction provides a direct coupling between Josephson phase and magnetic moment of ferromagnetic barrier. We demonstrate an appearance of additional fractional subharmonic steps in the IV-characteristics of ϕ0 junction under external electromagnetic radiation due to spin-orbit coupling. An origin of subharmonic steps is related to the locking of magnetic moment precession to the Josephson oscillations. We prove that the positions of those steps follow a continued fraction algorithm.

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“…The TDWs are pinned at triangular notches located at the edge of the strip. We use a numerical eigenmode method to study three TDW resonances, corresponding to translational 8,9,14,31 , twisting 11,32 and breathing 8,[33][34][35][36][37] excitations of the TDW. The latter mode has recently been studied for oscillator applications 38 and we demonstrate that this mode has the lowest sensitivity to changes in notch depths, making it an appealing choice for device applications.…”

Section: Introductionmentioning

confidence: 99%

Resonant translational, breathing, and twisting modes of transverse magnetic domain walls pinned at notches

et al. 2016

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We study translational, breathing and twisting resonant modes of transverse magnetic domain walls pinned at notches in ferromagnetic nanostrips. We demonstrate that a mode's sensitivity to notches depends strongly on the characteristics of that particular resonance. For example, the frequencies of modes involving lateral motion of the wall are the ones which are most sensitive to changes in the notch intrusion depth (especially at the narrower, more strongly confined end of the domain wall). In contrast, the breathing mode, whose dynamics are concentrated away from the notches is relatively insensitive to changes in the notches' sizes. We also demonstrate a sharp drop in the translational mode's frequency towards zero when approaching depinning which is found, using a harmonic oscillator model, to be consistent with a reduction in the local slope of the notch-induced confining potential at its edge.

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Possible method to observe the breathing mode of a magnetic domain wall in the Josephson junction

Cited by 7 publications

References 40 publications

Collective magnetic and plasma excitations in Josephson $ψ$ junctions

Collective magnetic and plasma excitations in Josephson $ψ$ junctions

Devil's staircase structures in $φ_{0}$ junction

Resonant translational, breathing, and twisting modes of transverse magnetic domain walls pinned at notches

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