[1] D Vasu, P V A Padmanabhan, N Pandiyaraj K et al. Surface & Coatings Technology, 389, 125642(2020).
[2] Chao Zheng, Qikang Jin, Keping Yan et al. Plasma Science and Technology, 20, 44005(2018).
[3] Jinlu Yu, Jingfeng Ye, Sibo Wang et al. Chinese Physics B, 28, 114702(2019).