Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 366
... Coulomb attraction gives rise to an energy difference of a few tenths of an ... Coulomb field of the donor , pos- sibly coupled with lattice distortions or ... barrier for thermally activated electron jumps to neighbouring sites , which ...
... Coulomb attraction gives rise to an energy difference of a few tenths of an ... Coulomb field of the donor , pos- sibly coupled with lattice distortions or ... barrier for thermally activated electron jumps to neighbouring sites , which ...
Page 375
... Coulomb attraction . As the temperature increases , this distance increases ... barrier height for thermal electron motion E increases with the distance as ... barrier height E , for Fe2 + ions directly surrounding Si4 + is very small ...
... Coulomb attraction . As the temperature increases , this distance increases ... barrier height for thermal electron motion E increases with the distance as ... barrier height E , for Fe2 + ions directly surrounding Si4 + is very small ...
Page 376
... barrier energy E , for electron transport between octahedral sites . Both as a function of distance from the dis- turbing Si ion , expressed in units of the Si4 + -Fe2 + nearest - neighbour distance . max We identify the barrier height ...
... barrier energy E , for electron transport between octahedral sites . Both as a function of distance from the dis- turbing Si ion , expressed in units of the Si4 + -Fe2 + nearest - neighbour distance . max We identify the barrier height ...
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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