Liu Qing-Bin, Yu Cui, Guo Jian-Chao, Ma Meng-Yu, He Ze-Zhao, Zhou Chuang-Jie, Gao Xue-Dong, Yu Hao, Feng Zhi-Hong. Influence of polycrystalline diamond on silicon-based GaN materialJ. Acta Physica Sinica, 2023, 72(9): 098104. DOI: 10.7498/aps.72.20221942