The spin‐wave spectrum of layered magnetic thin films

1985 ◽  
Vol 57 (4) ◽  
pp. 1282-1290 ◽  
Author(s):  
R. P. van Stapele ◽  
F. J. A. M. Greidanus ◽  
J. W. Smits
Keyword(s):  
Thin Films ◽  
Spin Wave ◽  
Wave Spectrum ◽  
Magnetic Thin Films ◽  
Spin Wave Spectrum

scholarly journals Propagation Effects in the Spin-Wave Spectrum of the Ferromagnetic Thin Film

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Sławomir Mamica
Keyword(s):  
Thin Film ◽  
Spin Wave ◽  
Necessary Conditions ◽  
Wave Spectrum ◽  
Film Surface ◽  
Magnetic Thin Films ◽  
Hamiltonian Matrix ◽  
Spin Wave Spectrum ◽  
Bulk Band ◽  
Mode Order

Exchange spin waves propagating in magnetic thin films exhibit some dynamic effects, that is, the effects caused solely by the wave propagation. In this paper we put our attention in four phenomena of such kind: the surface (and subsurface) localization, the collapse of the bulk band into a single energy level, the reversal of the mode order in the spin-wave spectrum, and the dynamic separation of the thin film into two subsystems. We link these effects to properties of Hamiltonian matrix elements inherited from the spatial distribution of neighboring spins with respect to the film surface. We also provide necessary conditions for the occurrence of these effects.

Spin-Wave Spectrum in the Sinusoidal Superlattice with Amplitude and Phase Inhomogeneities

2014 ◽  
Vol 215 ◽  
pp. 385-388
Author(s):  
Valter A. Ignatchenko ◽  
Denis S. Tsikalov
Keyword(s):  
Spin Wave ◽  
Density Of States ◽  
Wave Spectrum ◽  
The Self ◽  
One Dimensional ◽  
Consistent Approximation ◽  
Self Consistent ◽  
Greens Function ◽  
The One ◽  
Spin Wave Spectrum

Effects of both the phase and the amplitude inhomogeneities of different dimensionalities on the Greens function and on the one-dimensional density of states of spin waves in the sinusoidal superlattice have been studied. Processes of multiple scattering of waves from inhomogeneities have been taken into account in the self-consistent approximation.

Spin wave spectrum of quasi-two-dimensional antiferromagnet NH3(CH2)2NH3MnCl4

1994 ◽  
Vol 194-196 ◽  
pp. 187-188 ◽  
Author(s):  
V.V. Eremenko ◽  
V.I. Fomin ◽  
V.S. Kurnosov
Keyword(s):  
Spin Wave ◽  
Wave Spectrum ◽  
Two Dimensional ◽  
Spin Wave Spectrum
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