Electron interactions and the spin-wave stiffness constant in ferromagnetic two-component alloys

1976 ◽  
Vol 78 (1) ◽  
pp. 287-299 ◽  
Author(s):  
G. S. Poo ◽  
D. M. Edwards
Keyword(s):  
Spin Wave ◽  
Stiffness Constant ◽  
Two Component ◽  
Electron Interactions

Spin Wave Stiffness Constant of Laves Phase Invar Compound (Zr0.7Nb0.3)Fe2

1982 ◽  
Vol 51 (9) ◽  
pp. 2705-2706 ◽  
Author(s):  
Shigehumi Onodera ◽  
Yoshikazu Ishikawa ◽  
Masayuki Shiga ◽  
Ze Xianyu ◽  
Yoji Nakamura
Keyword(s):  
Spin Wave ◽  
Laves Phase ◽  
Stiffness Constant

Spin wave stiffness constant on the amorphous Co82(Ti, Zr, Hf)12B6 alloys

1995 ◽  
Vol 140-144 ◽  
pp. 345-346 ◽  
Author(s):  
Seong-Cho Yu ◽  
Yong-Goo Yoo ◽  
Wha-Nam Myung
Keyword(s):  
Spin Wave ◽  
Stiffness Constant

The Spin Wave Stiffness Constant in Ptc(Mn0.5Cr0.5)1−c Alloys

1983 ◽  
Vol 120 (1) ◽  
pp. K87-K91 ◽  
Author(s):  
D. E. G. Williams ◽  
A. Jezierski
Keyword(s):  
Spin Wave ◽  
Stiffness Constant

High-field susceptibility and spin wave stiffness constant of Co-Y amorphous alloys

1986 ◽  
Vol 22 (5) ◽  
pp. 555-557 ◽  
Author(s):  
K. Fukamichi ◽  
T. Goto ◽  
Y. Satoh ◽  
T. Sakakibara ◽  
S. Todo ◽  
...  
Keyword(s):  
Spin Wave ◽  
Amorphous Alloys ◽  
High Field ◽  
Stiffness Constant

scholarly journals Cálculo da constante de dureza em sistemas ferromagnéticos

1986 ◽  
Vol 8 (8) ◽  
pp. 07
Author(s):  
Ronaldo Mota
Keyword(s):  
Spin Wave ◽  
Exchange Coupling ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Wide Band ◽  
Band Model ◽  
Dynamical Susceptibility ◽  
Stiffness Constant ◽  
Two Band Model ◽  
Narrow Bands

A two-band model for the magnetism is used to calculate the stiffness constant in ferromagnetic systems. One band is narrow and degenerated, representing the "quasi-localized" electrons. The second one is a wide band containing very few itinerant electrons. The transverse dynamical susceptibility is calculated within the random-phase approximation (RPA). The value of the stiffness constant of the acoustical spin wave is essential to satisfy the criterion of ferromagnetic stability at T = 0K. From the poles of the susceptibility two spin-wave branches are derived: one acoustic and one optic. It is shown that taking into account the interatomic exchange coupling between electrons of the narrow bands is necessary for the spin-wave stiffness constant to assume the experimental value.

SPIN WAVE STIFFNESS CONSTANT OF IRON

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-89-C8-90
Author(s):  
R. Bechara Muniz ◽  
J. d'Albuquerque e Castro ◽  
E. Z. da Silva
Keyword(s):  
Spin Wave ◽  
Stiffness Constant

Remarks Concerning a Proposed Two-Component Spin-½ Wave Equation

1972 ◽  
Vol 5 (12) ◽  
pp. 3277-3279 ◽  
Author(s):  
H. Grotch ◽  
E. Kazes
Keyword(s):  
Wave Equation ◽  
Spin Wave ◽  
Two Component

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.

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