Superconducting Carbon‐Cage Network with <i>T</i><sub><i>c</i></sub> of 109 K at Ambient Pressure

Authors: Z. F. Ye, David J. Singh, Y. N. Huang, Guo‐Hua Zhong, Hai‐Qing Lin

Published: 2025-05-29

DOI: 10.1002/advs.202504281

Source: Full article


Abstract

AbstractA novel carbon‐cage network was reported, denoted as C18, found to be a low energy structure by first principles particle swarm structure search. The compound exhibits high temperature electron–phonon ambient pressure superconductivity with Tc = 79 K for elemental doping and can be raised to Tc = 109 K by appropriate hole doping. Analyses of the phonon spectra, molecular dynamics simulations, and enthalpy differences relative to analogous structures synthesized experimentally all suggest that the hole‐doped high‐Tc structure is a viable candidate for experimental synthesis.