Nature CommunicationsInch-scale ultrahard diamond wafer with 200 GPa hardness via high-frequency pulsed local non-equilibrium growthJuping TuJiayi LiYong WangYun ZhaoJinlong LiuJunjun WeiLiangxian ChenJianjun ZhangYang LuChengming Li2025-12-13Full textDOI https://doi.org/10.1038/s41467-025-66456-7