Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 215
Nonpropagating surface modes were first proposed by WOLF [ 40 ] in 1962 when a uniaxial surface energy was assumed to be present on the film surface . Spectra showing surfacelike character were reported in Permalloy films in 1963 [ 41 ] ...
Nonpropagating surface modes were first proposed by WOLF [ 40 ] in 1962 when a uniaxial surface energy was assumed to be present on the film surface . Spectra showing surfacelike character were reported in Permalloy films in 1963 [ 41 ] ...
Page 222
... surface modes , whose position shifts to lower energies and whose moment decreases rapidly . The energy possessed by the surface spins is ( 4.30 ) where ( 4.31 ) Eint Egurt Eint + 282 z1J ̧A , = 2S ~ Jo – 48 ° ≈ J – gun Sỹ • Hen - www ...
... surface modes , whose position shifts to lower energies and whose moment decreases rapidly . The energy possessed by the surface spins is ( 4.30 ) where ( 4.31 ) Eint Egurt Eint + 282 z1J ̧A , = 2S ~ Jo – 48 ° ≈ J – gun Sỹ • Hen - www ...
Page 224
... energy due to the reduced symmetry of the ion distribution at the interface may also contribute a surface anisotropy ... surfaces . In order to probe the surfaces of a thin magnetic film by spin wave resonance , it is desirable that the ...
... energy due to the reduced symmetry of the ion distribution at the interface may also contribute a surface anisotropy ... surfaces . In order to probe the surfaces of a thin magnetic film by spin wave resonance , it is desirable that the ...
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absorption angle anisotropy constants antiferromagnetic Appl axis birefringence Bloch lines Bloch point bubble calculated cation cm-¹ Co² Co³ coefficient concentration contribution crystal field cubic Curie temperature curve diamagnetic dichroism direction of magnetization domain wall effects electron energy levels equations exchange experimental Fe2+ Fe³ ferrimagnetic ferromagnetic resonance film formula unit frequency GELLER GILLEO given Hamiltonian interaction ion moments Journ K₁ lattice constant line width linear magnetic anisotropy magnetic field magneto-optical magnetoelastic magnons measurements modes neutron diffraction observed obtained octahedral octahedral sites optical orbital oxygen paramagnetic parameters phonons photoinduced photomagnetic Phys polarization polycrystalline properties rare-earth ions rare-earth iron garnets relaxation resonance room temperature rotation sample shown in fig sin² specimens spin wave spin-orbit coupling spontaneous magnetization sublattice substitution surface symmetry temperature dependence tetrahedral theory tion torque transitions uniaxial anisotropy valence values vector velocity yttrium iron garnet