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Isotropic bilinear exchange

The second-order van Vleck coefficients are omitted in the first approximation. The corresponding temperature behaviour is plotted in Fig. 10.16 it can be seen that the ground state alters, depending on the competition of the antiferromagnetic nature of the isotropic (bilinear) exchange and the ferromagnetic nature of the double exchange. [Pg.693]

Such a transformation may have some advantages. The isotropic (bilinear) exchange matrix in the molecular-state basis adopts a block-diagonal form only the matrix elements corresponding to the same spin are non-zero... [Pg.721]

Several kinds of exchange interactions, which couple the magnetic centres, are distinguished the (bilinear) isotropic, asymmetric, antisymmetric, biquadratic and double exchange. Various fine-structure Hamiltonian terms enter the spin-spin coupling tensor D these were derived from the relativistic Dirac and Breit equation. [Pg.697]

The spin Hamiltonian of bilinear isotropic exchange for a trinuclear cluster adopts the form of... [Pg.724]

The bilinear isotropic exchange Hamiltonian for a tetranuclear cluster is written in the form... [Pg.804]

See other pages where Isotropic bilinear exchange is mentioned: [Pg.692]    [Pg.794]    [Pg.159]    [Pg.323]    [Pg.692]    [Pg.794]    [Pg.159]    [Pg.323]    [Pg.57]    [Pg.494]    [Pg.347]    [Pg.402]    [Pg.200]    [Pg.701]    [Pg.790]    [Pg.796]    [Pg.817]    [Pg.835]    [Pg.176]    [Pg.397]    [Pg.497]   
See also in sourсe #XX -- [ Pg.323 ]



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