Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 41
... quadrupole coupling constants at the a - sites imply that the [ Fe ] -O bonds have considerable covalency . This is not consistent with the increase of the [ Fe ] -O bond lengths , relative to those of YIG [ 118 , 126 , 134 ] , however ...
... quadrupole coupling constants at the a - sites imply that the [ Fe ] -O bonds have considerable covalency . This is not consistent with the increase of the [ Fe ] -O bond lengths , relative to those of YIG [ 118 , 126 , 134 ] , however ...
Page 510
... quadrupole coupling . This coupling is the result of the interaction of the nuclear quadrupole moment Q with the gradient of the electric field due to the charges in the crystal [ 28 ] . Thus in YIG this coupling is different in the 16a ...
... quadrupole coupling . This coupling is the result of the interaction of the nuclear quadrupole moment Q with the gradient of the electric field due to the charges in the crystal [ 28 ] . Thus in YIG this coupling is different in the 16a ...
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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