New phenomena in the low-frequency dynamics of magnetic domain ensembles

Kandaurova, G. S.

doi:10.1070/pu2002v045n10abeh001064

Cited by 31 publications

(14 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The linear stability of Eq. (14) leads to the theoretical curve in Fig. 1 corresponding to the threshold for the existence of nonuniform patterns.…”

Section: Theoretical Analysismentioning

confidence: 81%

“…For instance, parallel-stripe and several kinds of lattice structures are observed in experiments and numerical simulations [11,12,13]. Moreover, traveling patterns [7] and more interesting patterns, e.g., spirals and concentric-ring patterns [14,15], have been observed, depending on the strength and frequency of the field. Spirals and concentricring patterns appear under a large-amplitude and high-frequency field in experiments, and the field range where they appear is not wide.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of an oscillating field on magnetic domain patterns: Emergence of concentric-ring patterns surrounding a strong defect

Kudo

2009

Phys. Rev. E

View full text Add to dashboard Cite

Oscillating fields can make domain patterns change into various types of structures. Numerical simulations show that concentric-ring domain patterns centered at a strong defect are observed under a rapidly oscillating field in some cases. The concentric-ring pattern appears near the threshold of spatially uniform patterns in high-frequency cases. The threshold is theoretically estimated and the theoretical threshold is in good agreement with numerical one in a high-frequency region. The theoretical analysis gives also good estimations of several characteristics of domain patterns for high frequencies.

show abstract

“…The linear stability of Eq. (14) leads to the theoretical curve in Fig. 1 corresponding to the threshold for the existence of nonuniform patterns.…”

Section: Theoretical Analysismentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Effects of an oscillating field on magnetic domain patterns: Emergence of concentric-ring patterns surrounding a strong defect

Kudo

2009

Phys. Rev. E

View full text Add to dashboard Cite

show abstract

“…Magnetic systems make convenient objects for use in analyzing processes of self-organization [3][4][5] phase transitions, and dynamic regimes [6,7] for the possibilities of efficiently controlling the state of these systems. Systems of magnetic particles are also important objects of investigation owing to their use in creation of new media by embedding these particles in solid-state porous matrices [8,9] or the formation of magnetic liquids on their basis [10,11].…”

Section: Introductionmentioning

confidence: 99%

Dynamically Induced Magnetic Moment of a Magnetic Dipole System

Шутый

2015

International Journal of Nonlinear Sciences and Numerical Simulation

View full text Add to dashboard Cite

The systems of three and four spherical bodies with the dipole magnetic moment have been investigated using a numerical analysis. It was shown that in the initial state with the zero total magnetic moment under the influence of the alternating magnetic field, various regimes of the induced magnetic moment including quasistatic states are established. Revealed are the significant differences between these regimes related to different systems. The magnitude and direction of the magnetic moment of the system, as well the states of dynamic bistability, have been investigated. The possibilities of the induced magnetic moment control due to the changes in amplitude or frequency of the alternating field have been considered.

show abstract

“…As we can see from the numerical calculation, spiral textures as metastable states can exist surrounded by labyrinth structures (fig.1a,b) or surrounded by skyrmions ( fig.1c,d), like static spiral domains (SD), surrounded by labyrinth domain structure [14] or by bubble lattice [15,16] in garnet ferrite films. In these films SDs may contain up to 30 turns [17] and being observed only as dynamical structures in some samples [18]. Magnetic dipole interactions play the key role in forming static SDs [19], but for the Archimedean spiral in chiral magnets the same as for other solitons with typical sizes about L D , taking into account the influence of these long-ranging forces is not so critical [20].…”

mentioning

confidence: 99%