Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 62
... Cubic anisotropy . The magnetically anisotropic part of the free energy depends on the magnetization M = Ma and on the strain . In addi- tion , the free energy can be assumed to be only a function of the direction of magnetization a ...
... Cubic anisotropy . The magnetically anisotropic part of the free energy depends on the magnetization M = Ma and on the strain . In addi- tion , the free energy can be assumed to be only a function of the direction of magnetization a ...
Page 100
... cubic crystalline field is the largest inter- action , and thus the ground state which essentially controls the magnetic behaviour is determined by H , whereas the remaining degeneracy is removed by the other interactions . For the rare ...
... cubic crystalline field is the largest inter- action , and thus the ground state which essentially controls the magnetic behaviour is determined by H , whereas the remaining degeneracy is removed by the other interactions . For the rare ...
Page 106
... cubic field trigonal field + spin - orbit exchange field -0.5 cubic trigonal field field + spin - orbit 20 20 [ 112 ] -0 30 b ) -0 - 40 B 50 [ 111 ] exchange field [ 110 ] 90 Fig . 18 . 3 10 Energy level splitting for a ) the 3T1 , cubic ...
... cubic field trigonal field + spin - orbit exchange field -0.5 cubic trigonal field field + spin - orbit 20 20 [ 112 ] -0 30 b ) -0 - 40 B 50 [ 111 ] exchange field [ 110 ] 90 Fig . 18 . 3 10 Energy level splitting for a ) the 3T1 , cubic ...
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Common terms and phrases
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