Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 22
... measurements on Yb3 + -doped Lu- and Y - Ga and Al garnets , they calculated canting angles of 22.5 and 20 ° for the moments of the Yb3 + ions in the two nonequivalent sets of Yb3 + sites at low temperatures ( < 20 K ) and a 0 K moment ...
... measurements on Yb3 + -doped Lu- and Y - Ga and Al garnets , they calculated canting angles of 22.5 and 20 ° for the moments of the Yb3 + ions in the two nonequivalent sets of Yb3 + sites at low temperatures ( < 20 K ) and a 0 K moment ...
Page 375
... measurements . Further evidence of a lowering of E with small is provided by dielectric - loss measurements [ 15 ] in these materials . At 20 K a loss peak is observed at 100 Hz which is attributed to relaxation of the dipoles formed by ...
... measurements . Further evidence of a lowering of E with small is provided by dielectric - loss measurements [ 15 ] in these materials . At 20 K a loss peak is observed at 100 Hz which is attributed to relaxation of the dipoles formed by ...
Page 442
... measurements in contradiction with this conclusion . Measurements on n - type samples below room temperature indicate a sub- stantial contribution of impurity hopping to the total conductivity . Measurements of a.c. conductivity and ...
... measurements in contradiction with this conclusion . Measurements on n - type samples below room temperature indicate a sub- stantial contribution of impurity hopping to the total conductivity . Measurements of a.c. conductivity and ...
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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