NdBiPt is a member of a new class of ternary intermetallic semiconductors and semimetals. These materials are covalently bonded crystals with band gaps expected to be in the range of 0-1 eV. Longitudinal resistivity, Hall resistivity, and thermoelectric power measurements reveal that in NdBiPt the ''gap'' is an overlap that gives rise to a semimetallic behavior exhibiting high hole and electron mobilities. Keywords Physics and Astronomy Disciplines Condensed Matter Physics CommentsThis article is from Physical Review B 53 (1996) NdBiPt is a member of a new class of ternary intermetallic semiconductors and semimetals. These materials are covalently bonded crystals with band gaps expected to be in the range of 0-1 eV. Longitudinal resistivity, Hall resistivity, and thermoelectric power measurements reveal that in NdBiPt the ''gap'' is an overlap that gives rise to a semimetallic behavior exhibiting high hole and electron mobilities. ͓S0163-1829͑96͒04119-7͔