Role of carbon in the formation of ohmic contact in Ni/4HSiC and Ni/Ti/4HSiC

► Structural characterisation of Ni and Ni/Ti contacts on n-type 4HSiC. ► Role of carbon in the Ni and Ni/Ti contacts on n-type 4HSiC. ► Raman spectroscopy (RS), X-ray diffraction (XRD) and Auger electron spectroscopy (AES).