Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 160
... Bloch point . Three orthogonal sections shows a principal section of a magnetic configuration having a Bloch point at the origin of x , y , z co - ordinates . The domain - wall center lies on the ( x , z ) -plane and the Bloch - line ...
... Bloch point . Three orthogonal sections shows a principal section of a magnetic configuration having a Bloch point at the origin of x , y , z co - ordinates . The domain - wall center lies on the ( x , z ) -plane and the Bloch - line ...
Page 161
... Bloch points in the presence of an in - plane magnetic field H. as Ar near a Bloch point , the total energy of a finite region including it is finite , so it is physically acceptable . The total exchange energy in a sphere of small ...
... Bloch points in the presence of an in - plane magnetic field H. as Ar near a Bloch point , the total energy of a finite region including it is finite , so it is physically acceptable . The total exchange energy in a sphere of small ...
Page 162
half of a simple Bloch line without Bloch points is unfavorably oriented . It follows that reversing the twist sense in one half of the Bloch line lowers the energy unless the added energy of the necessary Bloch point is too great ...
half of a simple Bloch line without Bloch points is unfavorably oriented . It follows that reversing the twist sense in one half of the Bloch line lowers the energy unless the added energy of the necessary Bloch point is too great ...
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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