Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 196
... continuum model where interactions must be included in a phenomenological manner , but allows the use of field theory to evaluate the normal modes of the system . In these lectures , I will review the dynamical responses of the spin ...
... continuum model where interactions must be included in a phenomenological manner , but allows the use of field theory to evaluate the normal modes of the system . In these lectures , I will review the dynamical responses of the spin ...
Page 208
... continuum theory and the allowed modes are the magnetostatic modes [ 27-29 ] . For larger k the exponent in the sum oscillates rapidly across the sample and surface effects are not important . If the transformation of eq . ( 2.13 ) is ...
... continuum theory and the allowed modes are the magnetostatic modes [ 27-29 ] . For larger k the exponent in the sum oscillates rapidly across the sample and surface effects are not important . If the transformation of eq . ( 2.13 ) is ...
Page 233
... continuum model . - 51. Equations of motion . – The analysis of spin wave resonance experiments can also be evaluated in terms of a continuum model . The transition from the spin Hamiltonian in eq . ( 2.1 ) to a set of classical field ...
... continuum model . - 51. Equations of motion . – The analysis of spin wave resonance experiments can also be evaluated in terms of a continuum model . The transition from the spin Hamiltonian in eq . ( 2.1 ) to a set of classical field ...
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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