Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |
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Page 205
... operator S2 . As a result , a scheme of clever transformations must be introduced in order to diagonalize the ... operators . Spin deviation operators ( 2.2 ) ni S - Sz are introduced and the eigenfunctions of the spin Hamiltonian are ...
... operator S2 . As a result , a scheme of clever transformations must be introduced in order to diagonalize the ... operators . Spin deviation operators ( 2.2 ) ni S - Sz are introduced and the eigenfunctions of the spin Hamiltonian are ...
Page 206
... operator is to decrease the number of spin de- viations and vice versa for the lowering operator . - 21. Introduction of Bose operators . Bose creation and annihilation oper- ators [ 26 ] working on the eigenstates of the spin deviation ...
... operator is to decrease the number of spin de- viations and vice versa for the lowering operator . - 21. Introduction of Bose operators . Bose creation and annihilation oper- ators [ 26 ] working on the eigenstates of the spin deviation ...
Page 468
momentum operator ₺ [ 1 , 2 ] ( 2 ) \ v1 ' ,, > = Σ a % | LM ) . M The numerical coefficients a , are tabulated in ... operators ( i.e. Ŝ , H , Î , E ) which possesses the necessary symmetry properties . The ad- vantage of the ...
momentum operator ₺ [ 1 , 2 ] ( 2 ) \ v1 ' ,, > = Σ a % | LM ) . M The numerical coefficients a , are tabulated in ... operators ( i.e. Ŝ , H , Î , E ) which possesses the necessary symmetry properties . The ad- vantage of the ...
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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