Superconductivity at 2.3 K in the misfit compound (PbSe)1.16(TiSe2)2

Details Superconductivity at 2.3 K in the misfit compound (PbSe)1.16(TiSe2)2 Superconductivity at 2.3 K in the misfit compound (PbSe)1.16(TiSe2)2

2010-06-30

arxiv.org/abs/1006.5946v1

Physics

Condensed Matter

Superconductivity

17 pages, 4 figures. To be published in Physical Review B

Scientific paper

The structural misfit compound (PbSe)1.16(TiSe2)2 is reported. It is a superconductor with a Tc of 2.3 K. (PbSe)1.16(TiSe2)2 derives from a parent compound, TiSe2, which shows a charge density wave transition and no superconductivity. The crystal structure, characterized by high resolution electron microscopy and powder x-ray diffraction, consists of two layers of 1T-TiSe2 alternating with a double layer of (100) PbSe. Transport measurements suggest that the superconductivity is induced by charge transfer from the PbSe layers to the TiSe2 layers.

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