Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
67 (1990), S. 2017-2023
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We describe the calculation of the spin-wave spectrum for barium ferrite, a complex exchange-coupled hexagonal ferrimagnetic compound, using a method first used in a similar calculation for yttrium iron garnet (YIG). The exchange integrals are calculated by fitting the Weiss molecular field approximation to the sublattice magnetizations while including single-ion anisotropy. The value for the space-averaged stiffness constant as calculated from the acoustic mode of the spin-wave spectrum is 2.5×10−9 Oe cm2, which compares favorably with values obtained by domain wall resonance, considering the accuracy of such measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.345583
Permalink
Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |