Effect of orientation of NiSb needle inclusions on temperature dependence of resistance in Cd-=SUB=-0.95-=/SUB=-Ni-=SUB=-0.05-=/SUB=-Sb crystals

A composite Cd 0.95 Ni 0.05 Sb crystal consisting of CdSb and NiSb inclusions was obtained by the modified Bridgman method. It shown methods scanning electron microscopy, X-ray phase analysis, energy-dispersive spectroscopy, studies Raman spectra, that main matrix a block single (orthorhombic Pbca structure) containing microcrystalline acicular second (hexagonal structure NiAs type P6 3 /mmc). has been found anisotropy single-crystal needles in samples crystalline (needles are directed along across current direction) significantly affects resistance magnetoresistance crystal. The interface is needle-like inclusion --- can become superconducting, which conductivity as whole. However, this superconductivity insufficient for transition at experimental temperatures to superconducting with zero composite. Keywords: cadmium antimonide, nickel composite, conductivity, superconductivity.