High-throughput structure searches for ambient-pressure superconductors in boron–carbon clathrates

Key Points

• This research aims to systematically identify stable boron-carbon clathrates that exhibit superconductivity at ambient pressure.
• Conducted a high-throughput search for stable structures of boron-carbon clathrates.
• Evaluated the stability of 21 identified X2B8C4 clathrates at ambient pressure.
• Measured the superconducting critical temperatures of the clathrates.
• Identified 21 stable boron-carbon clathrates at ambient pressure.
• Rb2B8C4 emerged as the clathrate with the highest superconducting critical temperature at 34 K.