Abstract
The temperature dependence of electrical resistivity of (Bi–Sb20)1−x–Snx alloys, along with liquid Bi–Sb20% alloy, have been investigated using the D.C. four-probe technique. Obvious reversible changes are observed on resistivity–temperature curves of the investigated (Bi–Sb20)1−x–Snx alloys, and there are clear turning points both on heating and cooling process in several experimental cycles. In case of Bi–Sb20% alloy, however, no reversible changes are observed on resistivity–temperature curves. Since resistivity is one of the physical properties sensitive to structures, it is suggested that there are reversible temperature-induced liquid–liquid transition in (Bi–Sb20)1−x–Snx alloys and the Sn plays an important role on the liquid–liquid transition.
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