Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 73
... deformation of the volume is ( 1.22 ) SV 3 = V - 2 eu ε . For a nonmagnetic material 8 is defined by the displacement of an arbitrary point between the unstrained and the strained crystal . However , magnetically ordered systems exhibit ...
... deformation of the volume is ( 1.22 ) SV 3 = V - 2 eu ε . For a nonmagnetic material 8 is defined by the displacement of an arbitrary point between the unstrained and the strained crystal . However , magnetically ordered systems exhibit ...
Page 103
... deformation of the lattice under strain causes a distortion of the atomic arrangement , which induces a strain dependence of the crystalline field . The variation of the interatomic distance also changes the overlap of the wave ...
... deformation of the lattice under strain causes a distortion of the atomic arrangement , which induces a strain dependence of the crystalline field . The variation of the interatomic distance also changes the overlap of the wave ...
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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