Raman spectroscopy study of the carbon structure of a-C:(H, Cu) and a-C:(H, Co) composite films Smorgonskaya, É. A. ; Ivanov-Omskii, V. I. Abstract Publication: Semiconductors Pub Date: August 2005 DOI: 10.1134/1.2010688 Bibcode: 2005Semic..39..934S