Glassy carbon (Wikipedia)
I Kim, C Shim, S Kim, C Lee, J Kwon, K Byun, U Jeong, Amorphous Carbon Films for Electronic Applications, AM 35, 2204912 (2022) – doi
A Giri, C Dionne, P Hopkins, Atomic coordination dictates vibrational characteristics and thermal conductivity in amorphous carbon, npj Computational Materials 8, 55 (2022)