In situ formation of carbon sp2-on-sp3 with manganese chemical vapor catalysis: Route to graphene-diamond heterostructureRemoveXin Fu, Wen Zhang, Peisheng Yang, Yajun Fu, Bing Wang, Jian Wang, Huiqiang Liu, Wanlin Yang, Zhaoxin Zhong, Jidong Deng, Haijiao Xie, and Ying XiongPhys. Rev. B 114, 065301 (2026)