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Non-uniform doping across the Fermi surface of NbS2 intercalates

Battaglia, C. ; Cercellier, H. ; Despont, L. ; Monney, C. ; Prester, M. ; Berger, H. ; Forró, L. ; Garnier, M. G. ; Aebi, P.

In: The European Physical Journal B, 2007, vol. 57, no. 4, p. 385-390

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    Titre
    • Non-uniform doping across the Fermi surface of NbS2 intercalates
    Auteur
    • Battaglia, C.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    • Cercellier, H.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    • Despont, L.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    • Monney, C.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    • Prester, M.. Institute of Physics, Bijenicka 46, 10000, Zagreb, Croatia
    • Berger, H.. Institute of Physics of Complex Matter, École polytechnique fédérale de Lausanne, Station 3, 1015, Lausanne, Switzerland
    • Forró, L.. Institute of Physics of Complex Matter, École polytechnique fédérale de Lausanne, Station 3, 1015, Lausanne, Switzerland
    • Garnier, M. G.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    • Aebi, P.. Institut de Physique, Université de Neuchâtel, Rue A.-L. Breguet 1, 2000, Neuchâtel, Switzerland
    Type de document
    • Postprint
    Identifiant OAI-PMH
    • oai:doc.rero.ch:320141
    Summary
    Abstract.: Magnetic ordering of the first row transition metal intercalates of NbS2 due to coupling between the conduction electrons and the intercalated ions has been explained in terms of Fermi surface nesting. We use angle-resolved photoelectron spectroscopy to investigate the Fermi surface topology and the valence band structure of the quasi-two-dimensional layer compounds Mn1/3NbS2 and Ni1/3NbS2. Charge transfer from the intercalant species to the host layer leads to non-uniform, pocket selective doping of the Fermi surface. The implication of our results on the nesting properties are discussed