Crystal growth of Pt-doped IrTe$_{2}$

IrTe$_{2}$, a layered compound with a triangular iridium lattice, exhibits a structural phase transition at approximately 250 K. Electric resistivity and magnetic susceptibility exhibit anomalies at the transition with hysteresis [1]. Charge-orbital density wave or orbitally induced Peierls effect, a crystal field effect are suggested as candidates of the origin of the transition [2-4]. On the other hand, superconducting phase emerges when the structural phase transition is suppressed by chemical substitution or intercalation [2,5]. Analysis of physical property using single crystal should be helpful to clarifying the relation between the ground states of IrTe$_{2}$ and superconductivity. Recently, Fang \textit{et al}. reported the growth of single crystal of parent compound [4]. However, single crystal of superconducting sample had not been reported yet. For these reason, we studied superconductivity and the structural transition in platinum doped IrTe$_{2}$ single crystals. We successfully synthesized several composition of the Ir$_{1-x}$Pt$_{x}$Te$_{2}$ single crystal by flux method. From magnetization and transport measurement, we confirm the suppression of structural phase transition and emergence of superconductivity. Detail of the experiment will be discussed.\\[4pt] [1] N. Matsumoto \textit{et al}., J. Low Temp. Phys. \textbf{117} (1999) 1129.\\[0pt] [2] J. J. Yang \textit{et al}., Phys. Rev. Lett. \textbf{108} (2012) 116402.\\[0pt] [3] D. Ootsuki \textit{et al}., Phys. Rev. B. \textbf{86} (2012) 014519.\\[0pt] [4] A. F. Fang \textit{et al}., arXiv:1203.4061 (2012).\\[0pt] [5] S. Pyon \textit{et al}., J. Phys. Soc. Jpn. \textbf{81}, 053701 (2012).