scholarly journals Spin-Wave Band Structure in 2D Magnonic Crystals with Elliptically Shaped Scattering Centres

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Sławomir Mamica ◽  
Maciej Krawczyk ◽  
Jarosław Wojciech Kłos
Keyword(s):  
Band Structure ◽  
Spin Wave ◽  
Fine Tuning ◽  
Magnetic Nanocomposites ◽  
Wave Band ◽  
Plane Rotation ◽  
Plane Wave Method ◽  
Scattering Centers ◽  
Magnonic Crystals ◽  
Wave Filter

Spin waves in 2D periodic magnetic nanocomposites are studied by means of the plane wave method. The effect of the ellipticity and in-plane rotation of the scattering centers on the band structure is investigated, to indicate new possibilities of fine tuning of spin-wave filter passbands.

Spin Wave Band Structure in Two-Dimensional Magnonic Crystals

2012 ◽  
pp. 205-221 ◽  
Author(s):  
G. Gubbiotti ◽  
S. Tacchi ◽  
M. Madami ◽  
G. Carlotti ◽  
R. Zivieri ◽  
...  
Keyword(s):  
Band Structure ◽  
Spin Wave ◽  
Wave Band ◽  
Two Dimensional ◽  
Magnonic Crystals

scholarly journals Interplay between intra- and inter-nanowires dynamic dipolar interactions in the spin wave band structure of Py/Cu/Py nanowires

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
G. Gubbiotti ◽  
X. Zhou ◽  
Z. Haghshenasfard ◽  
M. G. Cottam ◽  
A. O. Adeyeye ◽  
...  
Keyword(s):  
Band Structure ◽  
Spin Wave ◽  
Wave Band ◽  
Dipolar Interactions

scholarly journals Effect of hole shape on spin-wave band structure in one-dimensional magnonic antidot waveguide

2013 ◽  
Vol 114 (2) ◽  
pp. 023910 ◽  
Author(s):  
D. Kumar ◽  
P. Sabareesan ◽  
W. Wang ◽  
H. Fangohr ◽  
A. Barman
Keyword(s):  
Band Structure ◽  
Spin Wave ◽  
Wave Band ◽  
One Dimensional ◽  
Hole Shape

scholarly journals Spin-wave band gaps created by rotating square rods in triangular lattice magnonic crystals

2015 ◽  
Vol 64 (10) ◽  
pp. 107501
Author(s):  
Hu Xiao-Ying ◽  
Guo Xiao-Xia ◽  
Hu Wen-Tao ◽  
Huhe Mandula ◽  
Zheng Xiao-Xia ◽  
...  
Keyword(s):  
Spin Wave ◽  
Triangular Lattice ◽  
Band Gaps ◽  
Wave Band ◽  
Magnonic Crystals

The influence of the internal domain wall structure on spin wave band structure in periodic magnetic stripe domain patterns

2021 ◽  
pp. 29-82
Author(s):  
Pawel Gruszecki ◽  
Chandrima Banerjee ◽  
Michal Mruczkiewicz ◽  
Olav Hellwig ◽  
Anjan Barman ◽  
...  
Keyword(s):  
Domain Wall ◽  
Band Structure ◽  
Spin Wave ◽  
Wall Structure ◽  
Wave Band ◽  
Stripe Domain ◽  
Domain Wall Structure ◽  
Internal Domain

scholarly journals On the Formulation of the Exchange Field in the Landau-Lifshitz Equation for Spin-Wave Calculation in Magnonic Crystals

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
M. Krawczyk ◽  
M. L. Sokolovskyy ◽  
J. W. Klos ◽  
S. Mamica
Keyword(s):  
Plane Wave ◽  
Boundary Conditions ◽  
Spin Wave ◽  
Plane Waves ◽  
Exchange Constant ◽  
Wave Method ◽  
Exchange Field ◽  
Plane Wave Method ◽  
Lifshitz Equation ◽  
Magnonic Crystals

The calculation of the magnonic spectra using the plane-wave method has limitations, the origin of which lies in the formulation of the effective magnetic field term in the equation of motion (the Landau-Lifshitz equation) for composite media. According to ideas of the plane-wave method the system dynamics is described in terms of plane waves (a superposition of a number of plane waves), which are continuous functions and propagate throughout the medium. Since in magnonic crystals the sought-for superposition of plane waves represents the dynamic magnetization, the magnetic boundary conditions on the interfaces between constituent materials should be inherent in the Landau-Lifshitz equations. In this paper we present the derivation of the two expressions for the exchange field known from the literature. We start from the Heisenberg model and use a linear approximation and take into account the spacial dependence of saturation magnetization and exchange constant present in magnetic composites. We discuss the magnetic boundary conditions included in the presented formulations of the exchange field and elucidate their effect on spin-wave modes and their spectra in one- and two-dimensional planar magnonic crystals from plane-wave calculations.

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