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Electronic structure of f-electron intermetallic compounds studied by positrons

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The electronic structure of isostructural rare-earth intermetallic compounds TmGa3, ErGa3, and CeIn3 has recently been studied by measurements of two-dimensional angular correlations of annihilation radiation (2D ACAR) spectra. On the example of these systems we show what kind of information can be exploited from such spectra, i.e. from line projections of the electron-positron (e-p) momentum density ?(p). By applying various tomographic techniques, we check how these algorithms can affect reconstructed 3D momentum densities and Fermi surfaces (FS). We confirm that for all these systems in the paramagnetic phase the f-electrons are fully localized and their FS's are similar. TmGa3 and ErGa3 exhibit the FS nesting feature, in agreement with their magnetic structure, which is not a case in CeIn3.
Rocznik
Strony
611--615
Opis fizyczny
Bibliogr. 15 poz.
Twórcy
autor
  • W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, m.samsel@int.pan.wroc.pl
Bibliografia
  • [1] GROSCHE F.M., WALKER I.R., JULIAN S.R., MATHUR N.D., FREYE D.M., STEINER M.J., LONZARICH G.G., J. Phys.: Condens. Matter, 13 (2001), 2845 and references therein.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW1-0021-0016
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