Exchange Interactions in Metals
Magnetic properties of ferromagnetic metals and their alloys are essentially defined by itinerant electrons described by relatively narrow energy bands. Nevertheless, thermodynamic properties of such magnetic systems can quite often be quantitatively understood within the simple Heisenberg model [4.1]. Recently substantial progress has been made in the description of the magnetic properties of transition metals. Due to correlation effects, as in the Anderson model, metal atoms can attain local magnetic moments, and the type of their ordering will be defined by exchange interactions.
KeywordsExchange Interaction Exchange Field Heisenberg Model Local Magnetic Moment Spin Fluctuation
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