Itinerant electron magnetism in 3d-transition metals

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Inelastic neutron scattering experiments performed on the 3-d transition metal ferromagnets have revealed striking behavior associated with the magnetic excitations found in these materials. Of particular importance is the disappearance of the spin-wave mode above a certain cut-off wave vector and the existence of spin-wave mode above a certain cut-off wave vector and the existence of spin-waves well above the Curie temperature. These phenomena can be understood if the magnetic electrons are assumed to be itinerant. At low temperatures, quantitative predictions of the itinerant electron theory based on KKR energy band calculations have been found to be in excellent agreement ... continued below

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Pages: 24

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Cooke, J.F. May 1, 1979.

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Inelastic neutron scattering experiments performed on the 3-d transition metal ferromagnets have revealed striking behavior associated with the magnetic excitations found in these materials. Of particular importance is the disappearance of the spin-wave mode above a certain cut-off wave vector and the existence of spin-wave mode above a certain cut-off wave vector and the existence of spin-waves well above the Curie temperature. These phenomena can be understood if the magnetic electrons are assumed to be itinerant. At low temperatures, quantitative predictions of the itinerant electron theory based on KKR energy band calculations have been found to be in excellent agreement with experiment. In addition, these calculations predicted the existence of an optical spin-wave mode in nickel which was recently observed. A comparable numerical investigation at higher temperatures must await the development of a realistic finite temperature theory, which is currently under investigation.

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Pages: 24

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Dep. NTIS, PC A02/MF A01.

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  • Joint INTERMAG-MMM conference, New York, NY, USA, 17 Jul 1979

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  • Report No.: CONF-790738-1
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 6022731
  • Archival Resource Key: ark:/67531/metadc1101374

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 1979

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  • Feb. 18, 2018, 3:59 p.m.

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  • March 30, 2018, 12:25 p.m.

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Cooke, J.F. Itinerant electron magnetism in 3d-transition metals, article, May 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1101374/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.