According to the second aspect of the present invention, an intermediate layer mainly composed of {TAIL ~ Si} or {HEAD ~ Ge} is provided between the substrate and a diamond like carbon film 
According to the second aspect of the present invention , an intermediate layer mainly composed of { TAIL ~ Si } or { HEAD ~ Ge } is provided between the substrate and a diamond like carbon film
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH