Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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... Photoinduced effects without change of symmetry 14. Optical photoinduced effects .... 2. Symmetry properties of photomagnetic sites . Octahedral sites Tetrahedral sites . Dodecahedral sites 3. Theoretical analysis of photoinduction ...
... Photoinduced effects without change of symmetry 14. Optical photoinduced effects .... 2. Symmetry properties of photomagnetic sites . Octahedral sites Tetrahedral sites . Dodecahedral sites 3. Theoretical analysis of photoinduction ...
Page 337
... photoinduced Ax meas- ured with respect to [ 100 ] [ 18 ] . In fig . 15 , the spectral dependence of this « < anomalous » [ 100 ] dichroism is shown and compared with the corresponding spectrum of the [ 110 ] dichroism photoinduced with ...
... photoinduced Ax meas- ured with respect to [ 100 ] [ 18 ] . In fig . 15 , the spectral dependence of this « < anomalous » [ 100 ] dichroism is shown and compared with the corresponding spectrum of the [ 110 ] dichroism photoinduced with ...
Page 351
... photoinduced effects . - 34. Microscopic theory . In the present subsection we will make mention of the possible approaches to the theoretical explanation of photoinduced effects in YIG ( Si ) in terms of microscopic models . One model ...
... photoinduced effects . - 34. Microscopic theory . In the present subsection we will make mention of the possible approaches to the theoretical explanation of photoinduced effects in YIG ( Si ) in terms of microscopic models . One model ...
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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