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