101 citations · 101 across the 3 of their papers we have counts for
5 papers
A simple method to fabricate Josephson junctions
Imran Mahboob, Satoshi Sasaki, Takaaki Takenaka
A minimal method to fabricate Al/AlO/Al Josephson junctions (JJs) using photolithography and argon etching, before metallization and oxidation, is demonstrated. JJs with areas…
Three-Dimensional Niobium Coaxial Cavity with second Lifetime
Takaaki Takenaka, Takayuki Kubo, Imran Mahboob +4
We report on the internal quality factor of a three-dimensional niobium quarter-wave coaxial cavity, with mid-temperature annealing, exhibiting at…
Strongly correlated superconductivity in a copper-based metal-organic framework with a perfect kagome lattice
T. Takenaka, K. Ishihara, M. Roppongi +17
Metal-organic frameworks (MOFs), which are self-assemblies of metal ions and organic ligands, provide a tunable platform to search a new state of matter. A two-dimensional (2D) per…
Signature of Unconventional Superconductivity in a Copper-based Metal-Organic Framework with Perfect Kagome Structure
T. Takenaka, K. Ishihara, Y. Miao +6
Recently, the superconductivity in a metal-organic framework (MOF) has been discovered for the first time in copper(II) benzenehexathiolate ([Cu(CS)], Cu-BHT). The…
Evidence for s-wave Pairing with Atomic Scale Disorder in the van der Waals Superconductor NaSn2As2
K. Ishihara, T. Takenaka, Y. Miao +8
The recent discovery of superconductivity in NaSnAs with a van der Waals layered structure raises immediate questions on its pairing mechanism and underlying electronic str…