Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 31
... effective » moment per Fe3 + ion of the sub- lattice in which the Fe3 + ion moments are canted ; in the present two cases , the unsubstituted one . 5 nB 3 2 Gilleo model Yafet - Kittel model -1 0.4 0.8 1.2 1.6 X 2.0 Fig . 14 ...
... effective » moment per Fe3 + ion of the sub- lattice in which the Fe3 + ion moments are canted ; in the present two cases , the unsubstituted one . 5 nB 3 2 Gilleo model Yafet - Kittel model -1 0.4 0.8 1.2 1.6 X 2.0 Fig . 14 ...
Page 49
... effective Fe3 + ion moments is 5 [ 0.78 -0.72 0.82 ] μ 1.0μ . The net moment at 0 K is then 14.9μ . The amount of canting appears to be reasonable for the de- duced distribution . However , the distribution of the Al3 + ions is not much ...
... effective Fe3 + ion moments is 5 [ 0.78 -0.72 0.82 ] μ 1.0μ . The net moment at 0 K is then 14.9μ . The amount of canting appears to be reasonable for the de- duced distribution . However , the distribution of the Al3 + ions is not much ...
Page 102
... effective angular - momentum operator L ' , which operates within the effective orbital states m > , satisfying the relation L2 \ m1 . > = m2 , \ m . ) , L ' m'1 = 0 , ± 1 , where the -axis is chosen along the local axis of distortion ...
... effective angular - momentum operator L ' , which operates within the effective orbital states m > , satisfying the relation L2 \ m1 . > = m2 , \ m . ) , L ' m'1 = 0 , ± 1 , where the -axis is chosen along the local axis of distortion ...
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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