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Structural reinvestigation of (LaS) 1.14NbS2 and resistivity measurements

The structure of (LaS)1.14NbS2 has been reexamined through a supercell approach using the Bb2b noncentrosymmetric space group. The reliability factor stabilizes at a much lower value (R=0.067 to compare with R=0.155) for 830 reflexions with I[right angle bracket]3 sigma (I). Resistivity measurements made on single crystals indicate a metallic behaviour and a transition to a superconducting state below T/sub C/=2.43 K.

superconducting transition; resistivity; structure; supercell approach; Bb2b noncentrosymmetric space group; reliability factor; single crystals; metallic behaviour; 2.43 K; (LaS)1.14NbS2.

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