Abstract
BaVS3 is structurally characterised by the existence of linear chains of V4+ atoms with electronic configuration 3d1. Its magnetic and electric properties are very much dependent on stoichiometry. We report measurements performed on materials with various degrees of non stoichiometry. S deficient BaVS3 has Curie Weiss paramagnetic behavior and orders ferromagnetically below 16 K. Stoichiometric BaVS shows a maximum of magnetic
susceptibility at 70 K associated with a semi metal-semiconductor transition. We suggest that the decrease of susceptibility of stoichiometric BaVS3 below 70 K is not related to antiferromagnetic
ordering as previously proposed but results from the progressive transfer of electrons from localised magnetic states to a non magnetic band, separated from the other states by a small energy gap, and which fills up exactly at zero Kelvin.
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© 1981 Plenum Press, New York
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Massenet, O., Avignon, M., Chakraverty, B.K., Marcus, J., Lagnier, R. (1981). Physical Properties of BaVS3 and Their Dependence on Stoichiometry. In: Devreese, J.T., Lemmens, L.F., Van Doren, V.E., Van Royen, J. (eds) Recent Developments in Condensed Matter Physics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1086-0_37
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DOI: https://doi.org/10.1007/978-1-4684-1086-0_37
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