Reproducible synthetic method for the topological superconductor CuxBi2Se3
Ryusuke Kondo, Taiki Yoshinaka, Yoshinori Imai, and Atsutaka Maeda
TL;DR
This paper presents a reproducible synthetic method for creating superconducting Cu-intercalated Bi2Se3 using an improved melt growth process that avoids common issues and ensures consistent sample quality.
Contribution
The study introduces a novel melt growth technique that reliably produces superconducting Cu-Bi2Se3, improving reproducibility over previous methods.
Findings
Successful synthesis of superconducting Cu-Bi2Se3
Avoidance of Cu2Se formation during synthesis
Consistent superconducting properties achieved
Abstract
We report a reproducible synthetic method for superconducting Cu-intercalated Bi2Se3 by an improved melt growth method. Avoiding the production of Cu2Se, which has a higher melting point than that of Bi2Se3, and quenching Cu-Bi-Se mixtures at the liquid phase are keys to obtaining good superconducting samples in a reproducible manner.
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