The misfit layer compound (SnSe)1.16NbSe2

  • Wiegers G
  • Zhou W
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Abstract

(SnSe)1.16NbSe2was prepared from the elements at 750 °C. The compound has a misfit layer structure with unit cell dimensions for the SnSe subsystem : a1= 5.928(1), b1= 5.970(2), c1= 12.282(2) A ̊, space group Cm2a, Z = 4 and for the NbSe2subsystem: a2= 3.441(1), b2= 5.971 A ̊ (= b1), c2= 24.572(5) A ̊ (= 2c1), space group Fm2m, Z = 4. The structure was solved by X-ray powder diffraction. The compound is isostructural with (PbS)1.14NbS2. The electrical transport properties are metallic. The Hall coefficient is positive and corresponds at 4 K to 0.4 hole/Nb. The Seebeck coefficient is positive down to 80 K. © 1991.

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Authors

  • G. A. Wiegers

  • W. Y. Zhou

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