Then, {HEAD ~ a second topographic image} of {TAIL ~ the sample} free of magnetic effects is produced from the amplitude of the cantilever by slope detection 
of
Then , { HEAD ~ a second topographic image } of { TAIL ~ the sample } free of magnetic effects is produced from the amplitude of the cantilever by slope detection
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH