Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 99
... represents the Hamiltonian of the free ion , consists of several con- tributions and determines the magnetic anisotropy , and , finally , me expresses the strain dependence , thus controlling the magnetoelastic effects . The energy ...
... represents the Hamiltonian of the free ion , consists of several con- tributions and determines the magnetic anisotropy , and , finally , me expresses the strain dependence , thus controlling the magnetoelastic effects . The energy ...
Page 234
... represent the torques acting on the magnetization . The first term represents the torque on a unit volume of ma- terial with magnetization M placed in a magnetic field Heft , while the second term can be thought of as the torque due to ...
... represent the torques acting on the magnetization . The first term represents the torque on a unit volume of ma- terial with magnetization M placed in a magnetic field Heft , while the second term can be thought of as the torque due to ...
Page 400
12 compositions . These are all room temperature values , and all represent actual measurements except for the ... represents a first approximation . - - - Most of the rare earths make small negative contributions to the rotation ...
12 compositions . These are all room temperature values , and all represent actual measurements except for the ... represents a first approximation . - - - Most of the rare earths make small negative contributions to the rotation ...
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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