Calculations of Spin-Wave Energy Gap in Transition Metals

1991 ◽  
Vol 253 ◽  
Author(s):  
V.P. Antropov ◽  
A.I. Liechtenstein
Keyword(s):  
Spin Wave ◽  
Scattering Theory ◽  
Density Functional ◽  
Energy Gap ◽  
Theoretical Calculations ◽  
Wave Spectrum ◽  
Functional Approach ◽  
Stiffness Constant ◽  
Analytical Expressions ◽  
Spin Wave Spectrum

ABSTRACTAnalytical expressions for the total energy derivative with respect to the magnetic moment rotations have been derived in the relativistic local-spin density functional approach and multiple scattering theory. The spin-wave stiffness constant as well as the gap in the spin-wave spectrum due to relativistic anisotropy effects is calculated in KKR-ASA approximation for bcc Fe. This is compared with other theoretical calculations and available experimental data.

Experimental study of the energy gap in the spin-wave spectrum in Co/Pd multilayer films

JETP Letters ◽  
1996 ◽  
Vol 63 (12) ◽  
pp. 989-993 ◽  
Author(s):  
R. S. Iskhakov ◽  
I. V. Gavrishin ◽  
L. A. Chekanova
Keyword(s):  
Experimental Study ◽  
Spin Wave ◽  
Energy Gap ◽  
Wave Spectrum ◽  
Multilayer Films ◽  
Spin Wave Spectrum

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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