Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 134
... satisfy two requirements . First , it must have a uniaxial anisotropy whose easy direction is perpendicular to the film plane . This requirement distinguishes bubble films from permalloy memory films , in which the easy axis lies ...
... satisfy two requirements . First , it must have a uniaxial anisotropy whose easy direction is perpendicular to the film plane . This requirement distinguishes bubble films from permalloy memory films , in which the easy axis lies ...
Page 183
... satisfy the relation = yH ,, the regions with y = 2л ( n + 1 ) grow in size at the expense of those with y 2лn . At the instant when 2л ( n + 1 ) the Bloch lines all disappear , y = 2л ( n + 1 ) is satisfied everywhere , and uniform ...
... satisfy the relation = yH ,, the regions with y = 2л ( n + 1 ) grow in size at the expense of those with y 2лn . At the instant when 2л ( n + 1 ) the Bloch lines all disappear , y = 2л ( n + 1 ) is satisfied everywhere , and uniform ...
Page 340
... satisfied , when the concen- trations N , go to the zero - relaxation expression of eq . ( 6 ) with time constants ( Io , ) 1 . In practice , a spread of thermal - relaxation times usually exists , that goes , in the case of Si - doped ...
... satisfied , when the concen- trations N , go to the zero - relaxation expression of eq . ( 6 ) with time constants ( Io , ) 1 . In practice , a spread of thermal - relaxation times usually exists , that goes , in the case of Si - doped ...
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Common terms and phrases
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