Growth characteristics of type IIa large single crystal diamond with Ti/Cu as nitrogen getter in FeNi–C system<xref rid="cpb_29_1_018101fn1" ref-type="fn">*</xref><fn id="cpb_29_1_018101fn1"><label>*</label><p>Project supported by the Natural Science Foundation of Henan Province of China (Grant No. 182300410279), the Key Science and Technology Research Project of Henan Province of China (Grant No. 182102210311), the Key Scientific Research Project in Colleges and Universities of Henan Province of China (Grant Nos. 18A430017 and 20B140009), the Fundamental Research Funds for the Universities of Henan Province of China (Grant No. NSFRF180408), and the Fund for the Innovative Research Team (in Science and Technology) in the University of Henan Province of China (Grant No. 19IRTSTHN027).</p></fn>

Growth characteristics of type IIa large single crystal diamond with Ti/Cu as nitrogen getter in FeNi–C system**

Project supported by the Natural Science Foundation of Henan Province of China (Grant No. 182300410279), the Key Science and Technology Research Project of Henan Province of China (Grant No. 182102210311), the Key Scientific Research Project in Colleges and Universities of Henan Province of China (Grant Nos. 18A430017 and 20B140009), the Fundamental Research Funds for the Universities of Henan Province of China (Grant No. NSFRF180408), and the Fund for the Innovative Research Team (in Science and Technology) in the University of Henan Province of China (Grant No. 19IRTSTHN027).

Guo Ming-Ming^{1, 2}, Li Shang-Sheng^{1, 2, †,}, Hu Mei-Hua^{1, 2}, Su Tai-Chao^{1, 2}, Wang Jun-Zuo^{1, 2}, Gao Guang-Jin^{1, 2}, You Yue^{1, 2}, Nie Yuan^{1, 2}

SEM images (partial magnification) of the diamond surface synthesized along (111) surface in the FeNi–C system with Ti/Cu (Ti:Cu = 4:3) additive: (a) 0 wt%, (b) 1.0 wt%, (c) 1.5 wt%, (d) 1.7 wt%.