Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 85
... procedure is expected to be applicable for the calculation of the temperature variation of the anisotropy constants , which has been investigated first for ferromagnetic materials . The free energy of eq . ( 1.6 ) can be rewritten in ...
... procedure is expected to be applicable for the calculation of the temperature variation of the anisotropy constants , which has been investigated first for ferromagnetic materials . The free energy of eq . ( 1.6 ) can be rewritten in ...
Page 205
... procedure of diagonalizing the Hamiltonian to determine the spin wave dispersion relation . The dipole - dipole term ... procedures , the spin waves are treated as quantized particles subject to creation and annihilation operators . Spin ...
... procedure of diagonalizing the Hamiltonian to determine the spin wave dispersion relation . The dipole - dipole term ... procedures , the spin waves are treated as quantized particles subject to creation and annihilation operators . Spin ...
Page 524
... procedure is described which has been used in the laboratory [ 5 ] . Fine powders of Y2O , and Fe2O , are mixed in steel ball mills in alcoholic suspension , dried and « prefired at ( 1000-1200 ) ° C in air . By solid - state reaction ...
... procedure is described which has been used in the laboratory [ 5 ] . Fine powders of Y2O , and Fe2O , are mixed in steel ball mills in alcoholic suspension , dried and « prefired at ( 1000-1200 ) ° C in air . By solid - state reaction ...
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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