Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 27
... sublattice . = With equal to the number of nearest neighbors on the j - sublattice that interact with an ion on the i - sublattice , and J , the exchange constant for the i - j interaction ( III - 3.8 ) E1 = -2Σ ,, Ji S 、· S¡ . j ...
... sublattice . = With equal to the number of nearest neighbors on the j - sublattice that interact with an ion on the i - sublattice , and J , the exchange constant for the i - j interaction ( III - 3.8 ) E1 = -2Σ ,, Ji S 、· S¡ . j ...
Page 31
... sublattice anti- parallel to the Fe3 + ion moment in the substituted sublattice . We refer to this average component simply as the « effective » moment per Fe3 + ion of the sub- lattice in which the Fe3 + ion moments are canted ; in the ...
... sublattice anti- parallel to the Fe3 + ion moment in the substituted sublattice . We refer to this average component simply as the « effective » moment per Fe3 + ion of the sub- lattice in which the Fe3 + ion moments are canted ; in the ...
Page 403
... sublattices . For a three - sublattice rare - earth iron garnet this might be written ( 18 ) Φε = ( Am + A ) Mo . ( T ) + ( B + B ̧ ) M ( T ) + ( Cm + C. ) MR ( T ) . e Fe Fe m In this A. , B. and C. are coefficients relating the sublattice ...
... sublattices . For a three - sublattice rare - earth iron garnet this might be written ( 18 ) Φε = ( Am + A ) Mo . ( T ) + ( B + B ̧ ) M ( T ) + ( Cm + C. ) MR ( T ) . e Fe Fe m In this A. , B. and C. are coefficients relating the sublattice ...
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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