Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
From inside the book
Results 1-3 of 25
Page 204
... pairs . In general , the pair Hamiltonian , Hi , can be expanded in a power series of appropriate symmetry in the spin operators : ij9 ( 1.40 ) H - pair Σ Σ JESS , i > j k , l k , l = x , y , z . If the spin system has cylindrical ...
... pairs . In general , the pair Hamiltonian , Hi , can be expanded in a power series of appropriate symmetry in the spin operators : ij9 ( 1.40 ) H - pair Σ Σ JESS , i > j k , l k , l = x , y , z . If the spin system has cylindrical ...
Page 452
... pairs of ions [ 28 ] . Due to the strong superexchange interaction in Y , Fe3O12 , Jad = 22 cm - 1 , and large ... pair in their ground state the total spin is zero . Ex- citation of either Fe3 + ion to a crystal field spin quartet can ...
... pairs of ions [ 28 ] . Due to the strong superexchange interaction in Y , Fe3O12 , Jad = 22 cm - 1 , and large ... pair in their ground state the total spin is zero . Ex- citation of either Fe3 + ion to a crystal field spin quartet can ...
Page 455
... pairs of [ Fe3 + ] ( Fe3 + ) are implicated [ 7 ] . The most likely explanation for the origin of these transitions ... pair bands . The four vertical arrows denote the four 02 - Fe3 + charge transfer transitions . 2 2g this process ...
... pairs of [ Fe3 + ] ( Fe3 + ) are implicated [ 7 ] . The most likely explanation for the origin of these transitions ... pair bands . The four vertical arrows denote the four 02 - Fe3 + charge transfer transitions . 2 2g this process ...
Other editions - View all
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