Microwave magnetoelectric fields: An analytical study of topological characteristics

  title={Microwave magnetoelectric fields: An analytical study of topological characteristics},
  author={Roman Joffe and Reuven Shavit and Eugene O. Kamenetskii},
  journal={Journal of Magnetism and Magnetic Materials},

Azimuthally unidirectional transport of energy in magnetoelectric fields: topological Lenz’s effect

Abstract Magnetic-dipolar modes (MDMs) in a quasi-2D ferrite disc are microwave energy-eigenstate oscillations with topologically distinct structures of rotating fields and unidirectional power-flow

Electrodynamics of Magnetoelectric Media and Magnetoelectric Fields

The relationship between magnetoelectricity and electromagnetism is a subject of a strong interest and numerous discussions in microwave and optical wave physics and material sciences. The definition

Analysis of the probing field in magneto-dipolar-mode microwave microscopy

Magnetic dipolar modes in magnon-polariton condensates

For dipole-carrying excitations observed in a high-quality resonator, strong-coupling modes can appear as composite bosons with the spontaneous formation of quantized vortices in the condensed phase

Interaction of MDM Ferrite Particles with a Microwave-Field Continuum

Magnetic-dipolar modes (MDMs) in a quasi-2D ferrite disk are microwave energy-eigenstate oscillations with topologically distinct structures of rotating fields and unidirectional power-flow

Induced torsion effects in microwave structures with magnetoelectric fields

At ferromagnetic-resonance frequencies, in small ferrite samples so-called magnetic-dipolar-mode oscillations can be excited. The near fields in vacuum, originated from a ferrite disk with these

Influence of High Pulsed Magnetic Field on the Dislocations and Mechanical Properties of Al2O3/Al Composites

At T6 state, Al–Zn–Mg–Cu aluminum matrix composites reinforced with Al2O3 particles generated in situ were subjected to high pulsed magnetic fields at different magnetic induction intensities (B = 2,

Influence of constant magnetic field on plastic characteristics of paramagnetic metals

The reported study analyses the influence of weak constant magnetic fields (up to 0.6 T) on plastic characteristics of paramagnetic materials, e.g. titanium and aluminum. Such characteristics as

Magnetoelectric Near Fields

We consider near field topological singularities originated from magnetic dipolar mode oscillations in ferrite disk particles.

Quantization of magnetoelectric fields

The effect of quantum coherence involving macroscopic degree of freedom, and occurring in systems far larger than individual atoms are one of the topical fields in modern physics. Because of material



Topological properties of microwave magnetoelectric fields.

It is shown that magnetoelectric fields originated from MDM ferrite disks can be distinguished by topological portraits of the helicity parameters and can have a torsion degree of freedom.

Microwave magnetoelectric fields and their role in the matter-field interaction.

We show that in a source-free subwavelength region of microwave fields, there can exist field structures with a local coupling between the time-varying electric and magnetic fields differing from the

Helical-mode magnetostatic resonances in small ferrite particles and singular metamaterials

  • E. Kamenetskii
  • Physics
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2010
It is demonstrated that the unique topological properties of the fields in a ferrite disk are intimately related to the symmetry breaking effects of magnetostatic oscillations, which allow one to propose new-type subwavelength microwave structures.

Quantum confinement of magnetic-dipolar oscillations in ferrite discs

Because of confinement phenomena, semiconductor quantum dots show typical atomic properties such as discrete energy levels and shell structures. The energy eigenstates are described based on the

Manipulating microwaves with magnetic-dipolar-mode vortices

There has been a surge of interest in the subwavelength confinement of electromagnetic fields. It is well known that, in optics, subwavelength confinement can be obtained from surface plasmon

Magnetoelectric-field helicities and reactive power flows

The dual symmetry between the electric and magnetic fields underlies Maxwell's electrodynamics. Due to this symmetry one can describe topological properties of an electromagnetic field in free space

Vortices and chirality of magnetostatic modes in quasi-2D ferrite disc particles

Microwave vortices in ferrite particles can appear in different kinds of physical phenomena depending on space scales of the wave processes. In this paper, we show that the vortex states can be

Theory of orbital magnetoelectric response

We extend the recently developed theory of bulk orbital magnetization to finite electric fields, and use it to calculate the orbital magnetoelectric (ME) response of periodic insulators. Working in

Magnetic-dipolar and electromagnetic vortices in quasi-2D ferrite discs

Evidence for eigen-MS power-flow-density vortices in a ferrite disc is given and it becomes evident that the reason for stability of the vortex configurations in saturated ferrite samples is completely different from the nature of stability in magnetically soft cylindrical dots.