[15p-F206-1~14] 22.1 Joint Session M

[15p-F206-14] Microscopic thermal conductivity analysis of two-dimensional Fe_xTiS₂ single crystals

〇Youhei Kakefuda¹, Tetsuya Baba¹, Naoyuki Kawamoto¹, Pawula Florent², Ramzy Daou², Sylvie Hebert², Takao Mori¹ (1.NIMS, 2.CRISMAT)

Keywords:time-domain thermoreflectance, transition metal dichalcogenide

We have investigated thermal conductivity of two-dimensional Fe_xTiS₂ single crystals. The out-of-plane thermal conductivity of the Fe_xTiS₂ was characterized by using time-domain thermoreflectance (TD-TR). TD-TR analysis reveals that the thermal conductivity of Fe_0.05TiS₂ is lower than that of pristine TiS₂. On the other hand, the Fe intercalation into TiS₂ leads to increase in thermal conductivity as the Fe content x increases for x = 0.10 and 0.20.