Theoretical Study of Bonds length, Energetic and Vibration Frequencies for Construction Units of (6,0) ZigZag SWCNTs. Iraqi Journal of Science [Internet]. 2023 Mar. 30 [cited 2024 Jul. 3];57(3A):1821-35. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9880