Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 281
... spin wave model . ( The energy relaxation time is half the relaxation time of the transverse magnetization . ) The magnitude of k for the excited wave can be found from the spin wave manifold by identifying the spin wave with half of ...
... spin wave model . ( The energy relaxation time is half the relaxation time of the transverse magnetization . ) The magnitude of k for the excited wave can be found from the spin wave manifold by identifying the spin wave with half of ...
Page 282
... wave couples with the excited spin wave to gen- erate a spin wave of higher frequency and k value [ 12 ] . The coupling between lattice and spin waves is attributed to the magnetic anisotropy of the ferric ions and involves no ...
... wave couples with the excited spin wave to gen- erate a spin wave of higher frequency and k value [ 12 ] . The coupling between lattice and spin waves is attributed to the magnetic anisotropy of the ferric ions and involves no ...
Page 479
It is for this reason that spin wave instabilities , i.e. the nonlinear para- metric excitation of magnons with almost arbitrary k ... Spin waves in YIG studied by nonlinear spectroscopy Some basic properties of spin wave instabilities.
It is for this reason that spin wave instabilities , i.e. the nonlinear para- metric excitation of magnons with almost arbitrary k ... Spin waves in YIG studied by nonlinear spectroscopy Some basic properties of spin wave instabilities.
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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