Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 68
... represents axial symmetry , and the free energy can be calculated from eqs . ( 1.2 ) and ( 1.3 ) . If ẞ denotes a unit ... represented as follows : T200 ( 3 ) - - ᎪᏰ , ( 1.10 ) T11 ( G ) = ᏴᏰᏰ 2 , To20 ( B ) = Aẞ2 , 002 Too2 ( B ) ...
... represents axial symmetry , and the free energy can be calculated from eqs . ( 1.2 ) and ( 1.3 ) . If ẞ denotes a unit ... represented as follows : T200 ( 3 ) - - ᎪᏰ , ( 1.10 ) T11 ( G ) = ᏴᏰᏰ 2 , To20 ( B ) = Aẞ2 , 002 Too2 ( B ) ...
Page 99
... representing the total energy of a magnetic ion in the crystal lattice can be expressed in terms of the crystalline ... represents the Hamiltonian of the free ion , consists of several con- tributions and determines the magnetic ...
... representing the total energy of a magnetic ion in the crystal lattice can be expressed in terms of the crystalline ... represents the Hamiltonian of the free ion , consists of several con- tributions and determines the magnetic ...
Page 193
... representing eq . ( 8.16 ) , plotted as X vs. H for different values of y , and fixed T. The number of Bloch lines at any point in the overshoot phase is therefore represented by the value of y , for the line running through that point ...
... representing eq . ( 8.16 ) , plotted as X vs. H for different values of y , and fixed T. The number of Bloch lines at any point in the overshoot phase is therefore represented by the value of y , for the line running through that point ...
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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