NatureSynthesis of bulk hexagonal diamondLiuxiang YangKah Chun LauZhidan ZengDongzhou ZhangHu TangBingmin YanGuoliang NiuHuiyang GouYanping YangWenge YangDuan LuoHo-kwang Mao2025-07-30Full textDOI https://doi.org/10.1038/s41586-025-09343-x