Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 31
... substitution in each determines which sublattice contains the canted moments . The effective moments per Fe3 + ion ... substitution is much smaller than for a - site substitution ; c ) the transitions for a - site substitution occur at a ...
... substitution in each determines which sublattice contains the canted moments . The effective moments per Fe3 + ion ... substitution is much smaller than for a - site substitution ; c ) the transitions for a - site substitution occur at a ...
Page 34
... substitution . The attempt is made to give a mathematical representation of the Geller model . It makes use also of the Yafet - Kittel and Gilleo formalisms . However , without going into detail ( because there is yet much to write ) ...
... substitution . The attempt is made to give a mathematical representation of the Geller model . It makes use also of the Yafet - Kittel and Gilleo formalisms . However , without going into detail ( because there is yet much to write ) ...
Page 43
... substituted for Fe3 + in YIG , notwithstanding what was claimed in [ 79 ] . It has been shown that the substitution of Si4 + in YIG in substantial amounts does induce the presence of some Fe2 + in YIG , but it results mainly in vacancy ...
... substituted for Fe3 + in YIG , notwithstanding what was claimed in [ 79 ] . It has been shown that the substitution of Si4 + in YIG in substantial amounts does induce the presence of some Fe2 + in YIG , but it results mainly in vacancy ...
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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