We have succeeded in synthesizing new superconductors Li x (C2H8N2) yMSe2 and Li x (C6H16N2) yMSe2 (M = Ti, Mo) with T c = 2.4-6.0 K via the co-intercalation of lithium and diamines into 1T-TiSe2 and 2H-MoSe2. As for M = Ti, it has been found that both the electron doping due to the Li intercalation and the expansion of the interlayer spacing between TiSe2 layers due to the intercalation of diamines suppress the charge density wave transition, leading to the appearance of superconductivity. As for M = Mo, T c has been found to be related not to the interlayer spacing but to the carrier density increased by the electron doping due to the Li intercalation.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2018 Apr 19|
|Event||28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden|
Duration: 2017 Aug 9 → 2017 Aug 16
ASJC Scopus subject areas
- Physics and Astronomy(all)