Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 280
... parallel - pump experiment . A beautiful technique for the exper- imental study of the damping of spin waves with fairly low k values is known as the parallel - pump method . In the experimental arrangement the high - frequency ( GHz ) ...
... parallel - pump experiment . A beautiful technique for the exper- imental study of the damping of spin waves with fairly low k values is known as the parallel - pump method . In the experimental arrangement the high - frequency ( GHz ) ...
Page 284
... parallel - pump method . The unsatisfactory feature of the situation compared with the parallel - pump method is the imprecise know- ledge of just which of the degenerate spin wave modes ( which k values ) are excited . This experiment ...
... parallel - pump method . The unsatisfactory feature of the situation compared with the parallel - pump method is the imprecise know- ledge of just which of the degenerate spin wave modes ( which k values ) are excited . This experiment ...
Page 343
... parallel to the direction û , of the axis of symmetry . Thus we resolve the polarization state of the incident photon into the +1 , 0 and 1 eigenstates of the spin component along û ,. Let ε ( q +1 , 0 , -1 ) be the resulting amplitudes ...
... parallel to the direction û , of the axis of symmetry . Thus we resolve the polarization state of the incident photon into the +1 , 0 and 1 eigenstates of the spin component along û ,. Let ε ( q +1 , 0 , -1 ) be the resulting amplitudes ...
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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