Structure Determination of a Trilayer Misfit Compound (GdεSn1-εS)1.16(NbS2)3

TEM study of the (SbS)1+(NbS2) , (n=1, 2, 3; δ~1.14, 1.20) misfit layer phases

“…The q 2 satellites observed cannot be attributed to ordering of the interstitial niobium atoms in the Van der Waals gap between the H layers [38], since we observe q 2 satellite reflections in the SAED patterns of the crystals of the n ¼1 phase (with one single H layer between the Q layers) and not in the n ¼3 phase (with two VdW gaps between the three consecutive H layers). On the other hand, charge density waves have not been reported in MLC, with the exception of the VS 2 substructures of (LaS) 1.196 VS 2 [39] and (PbS) 1.12 VS 2 [40], so they could be discarded as a possible cause for q 2 modulation.…”

Titanium-Doped Molybdenum Disulfide Nanostructures

“…6a). Three possible substitution structures can minimize steric hindrance: a) the formation of a 1T±TiS 2 molecular chain along the a axis in 2H±MoS 2 , similar to that in a misfit compound, [18,19] b) the formation of individual lattice vacancies in the S layer above the substituted Ti center, and c) the formation of distorted 2H±MoS 2 units next to the 1T±TiS 2 center. Structure (a) is unlikely for the following reasons.…”

Titanium-Doped Molybdenum Disulfide Nanostructures

“…6a). Three possible substitution structures can minimize steric hindrance: a) the formation of a 1T±TiS 2 molecular chain along the a axis in 2H±MoS 2 , similar to that in a misfit compound, [18,19] b) the formation of individual lattice vacancies in the S layer above the substituted Ti center, and c) the formation of distorted 2H±MoS 2 units next to the 1T±TiS 2 center. Structure (a) is unlikely for the following reasons.…”