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We have calculated Heisenberg exchange parameters for bcc-Fe, fcc-Co, and fcc-Ni using the scalar-relativistic spin-polarized Green function technique within the tight-binding linear muffin-tin orbital method and by employing the magnetic force theorem to calculate total energy changes associated with a local rotation of magnetization directions. We have(More)
The effective exchange interactions of magnetic overlayers Fe/Cu(001) and Co/Cu(001) covered by a Cu-cap layer of varying thickness were calculated in real space from first principles. The effective two-dimensional Heisenberg Hamiltonian was constructed and used to estimate magnon dispersion laws, spin-wave stiffness constants, and overlayer Curie(More)
Heating in microwave ovens uses the ability of some liquids and solids to transform electromagnetic energy into heat and thereby drive chemical reactions. Since observed thermal effect depends on the properties of material exposed to microwave irradiation (materials for chemical reactions do not interact equally with the commonly used microwave(More)
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