[17a-A22-1~12] KS.2 Quantum Information Engineering Group

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[17a-A22-7] Electrical properties of TiN/MgO/TiN junctions at 10 mK

〇Hirotaka Terai¹, Kazuyo Takaki¹, Mai Setoura¹, Satoru Mima¹, Shigehito Miki¹ (1.NICT)

Keywords:

nitride superconductor,Josephson junction,magnesium oxide

We are working on developing a new material platform based on nitride superconductors as an alternative to the Al/AlOx/Al Josephson junctions that are widely used in R&D of current superconducting qubits. In this presentation, we report the test results of TiN/MgO/TiN Josephson junctions, where MgO has the same cubic structure as TiN and has an excellent lattice matching with TiN. We will discuss the current-voltage characteristics of TiN/MgO/TiN junctions at 10 mK.