Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 83
... applied to the sample . This shift of the corresponding resonance field SH ̧ [ hkl ] along the [ hkl ] -direction can be expressed by [ 91 , 92 ] ( 2.8 ) SH , hkl ] - 3 τληκι 2 M. hkl = 100 , 111 , where denotes the applied stress . For ...
... applied to the sample . This shift of the corresponding resonance field SH ̧ [ hkl ] along the [ hkl ] -direction can be expressed by [ 91 , 92 ] ( 2.8 ) SH , hkl ] - 3 τληκι 2 M. hkl = 100 , 111 , where denotes the applied stress . For ...
Page 151
... applied field . By evaluating the functional derivatives So / Sq and So / Sy in the usual way , substituting into eqs . ( 4.4 ) and ( 4.5 ) and replacing 4 by 4。, we have [ 18 ] ( 4.7 ) ( 4.8 ) - = yH2 + ( 0。y / 2 M ) ( ¶xx + ¶zz ) ...
... applied field . By evaluating the functional derivatives So / Sq and So / Sy in the usual way , substituting into eqs . ( 4.4 ) and ( 4.5 ) and replacing 4 by 4。, we have [ 18 ] ( 4.7 ) ( 4.8 ) - = yH2 + ( 0。y / 2 M ) ( ¶xx + ¶zz ) ...
Page 174
... applied , the wall moves with velocity V , while the Bloch lines move with velocity components V. , V. Let us assume that the « billowing » between Bloch lines due to the applied pressure 2MH ( illustrated for a wall with a horizontal ...
... applied , the wall moves with velocity V , while the Bloch lines move with velocity components V. , V. Let us assume that the « billowing » between Bloch lines due to the applied pressure 2MH ( illustrated for a wall with a horizontal ...
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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