@article {D3CP02620E,
	title = {Enhancement for phonon-mediated superconductivity up to 37 K in few-hydrogen metal-bonded layered magnesium hydride under atmospheric pressure},
	journal = {Phys. Chem. Chem. Phys.},
	volume = {25},
	year = {2023},
	pages = {21037-21044},
	publisher = {The Royal Society of Chemistry},
	abstract = {The discovery of superconductivity in layered MgB2 has renewed interest in the search for high-temperature conventional superconductors, leading to the synthesis of numerous hydrogen-dominated materials with high critical temperatures (Tc) under high pressures. However, achieving a high-Tc superconductor under ambient pressure remains a challenging goal. In this study, we propose a novel approach to realize a high-temperature superconductor under ambient pressure by introducing a hexagonal H monolayer into the hexagonal close-packed magnesium lattice, resulting in a new and stable few-hydrogen metal-bonded layered magnesium hydride (Mg4)2H1. This compound exhibits superior ductility compared to multi-hydrogen, cuprate, and iron-based superconductors due to its metallic bonding. Our unconventional strategy diverges from the conventional design principles used in hydrogen-dominated covalent high-temperature superconductors. Using anisotropic Migdal{\textendash}Eliashberg equations, we demonstrate that the stable (Mg4)2H1 compound is a typical phonon-mediated superconductor, characterized by strong electron{\textendash}phonon coupling and an excellent Tc of 37 K under ambient conditions, comparable to that of MgB2. Our findings not only present a new pathway for exploring high-temperature superconductors but also provide valuable insights for future experimental synthesis endeavors.},
	doi = {10.1039/D3CP02620E},
	url = {http://dx.doi.org/10.1039/D3CP02620E},
	author = {Yong He and Juan Du and Shi-ming Liu and Chong Tian and Zhang, Min and Yao-Hui Zhu and Zhong, Hongxia and Wang, Xinqiang and Shi, Jun-jie}
}
