A determination of the partial structure factors of liquid TlSe using combined x-ray and neutron diffraction

Abstract
The partial structure factors of liquid thallium selenide, TlSe, have been determined using a combination of two neutron diffraction measurements using isotopic substitution and one x-ray diffraction measurement. We show that the statistical accuracy obtained using this method is considerably higher than that achievable using neutron diffraction and isotopic substitution alone. The results unambiguously show the formation of Se polyanionic species in the liquid.

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