Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 57
... magnetic material . The crystalline anisotropy depends on the atomic arrangement in the crystal and is invariant with respect to the crystallographic symmetry being cubic for the garnets . It relates the direction of magnetization to ...
... magnetic material . The crystalline anisotropy depends on the atomic arrangement in the crystal and is invariant with respect to the crystallographic symmetry being cubic for the garnets . It relates the direction of magnetization to ...
Page 71
... direction of the external magnetic field or magnetization during anneal and a the direction of magnetization with respect to the cubic axis . In contrast to garnets in spinel ferrites , the induced anisotropies are associated with ...
... direction of the external magnetic field or magnetization during anneal and a the direction of magnetization with respect to the cubic axis . In contrast to garnets in spinel ferrites , the induced anisotropies are associated with ...
Page 82
... magnetic field , and the theory is essentially based on the minimization of the total energy from which the equilibrium angle of the direction of magnetization with respect to the uniaxial axis is calculated . The fit of the theory to ...
... magnetic field , and the theory is essentially based on the minimization of the total energy from which the equilibrium angle of the direction of magnetization with respect to the uniaxial axis is calculated . The fit of the theory to ...
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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