An overview is presented concerning the entropies (ΔS) and enthalpies (ΔH) associated with metal-insulator transitions in the (V1−xMx)2O3 M=Al, Cr, Ti systems, 0⩽x⩽0·12 and in non-stoichiometric V2(1 −y)O3, 0⩽y⩽0·01. The recent literature and new data are analyzed with respect to gradiations in ΔH and ΔS withx ory, and their implications concerning the mechanism of the transitions. A revised phase diagram is presented.
Volume 43, 2020
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