[19a-B401-1~11] 11.1 Fundamental properties

[19a-B401-5] Crystal structure and superconducting properties of Ag_1/5TaS₂ obtained by proton-driven ion introduction

〇Masaya Fujioka¹, Naoki Sirakawa², Naoki Kubo¹, Hideo Kaiju¹, Junji Nishii¹ (1.Hokkaido Univ., 2.AIST)

Keywords:superconductor, intercalation, Proton-driven ion introduction

Proton-driven ion introduction (PDII) was developed as a new method for intercalation. The protons (H⁺) generated by the electrolytic dissociation of hydrogen drive other monovalent cations along a high electric field in the solid state. By utilizing this mechanism, we demonstrated the intercalation of Ag⁺ ion into a layered TaS₂ single crystal. Obtained Ag_1/5TaS₂ shows superconductivity at 1.3 K.