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Non-uniform doping across the Fermi surface of NbS$_2$ intercalates

C. Battaglia·H. Cercellier·L. Despont·C. Monney·M. Prester·H. Berger·L. Forro·M. G. Garnier·P. Aebi
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Abstract

Magnetic ordering of the first row transition metal intercalates of NbS$_2$ 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 Mn$_{1/3}$NbS$_2$ and Ni$_{1/3}$NbS$_2$. 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.

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C. Battaglia, H. Cercellier, L. Despont, C. Monney, M. Prester, H. Berger, L. Forro, M. G. Garnier, P. Aebi. 2007-07-19. Non-uniform doping across the Fermi surface of NbS$_2$ intercalates. https://doi.org/10.1140/epjb%2Fe2007-00188-1

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