Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 450
105 10 " 101 10 ° 0 optical phonons crystal field transitions 10 20 wave number ( cm1 103 ) 30 to show that the ... phonon bands are merely shown schematically ( see ref . [ 24 ] ) . 450 G. B. SCOTT.
105 10 " 101 10 ° 0 optical phonons crystal field transitions 10 20 wave number ( cm1 103 ) 30 to show that the ... phonon bands are merely shown schematically ( see ref . [ 24 ] ) . 450 G. B. SCOTT.
Page 452
... phonon energies in Y , FeO12 . The bulk of the intensity of this band appeared to be due to even- parity phonons [ 16 ] and not to odd - parity ones as required by Clogston's model . 6 19 Diamagnetic substitution of either Fe3 + ...
... phonon energies in Y , FeO12 . The bulk of the intensity of this band appeared to be due to even- parity phonons [ 16 ] and not to odd - parity ones as required by Clogston's model . 6 19 Diamagnetic substitution of either Fe3 + ...
Page 494
... phonons . However , the experimental technique to observe scattering from long - wavelength magnons is very similar ( we shall see that very often magnons and phonons are recorded simultaneously ) . Moreover , the underlying physics ...
... phonons . However , the experimental technique to observe scattering from long - wavelength magnons is very similar ( we shall see that very often magnons and phonons are recorded simultaneously ) . Moreover , the underlying physics ...
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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