 stopping the depositing of Ga when {TAIL ~ sufficient atoms} of Ga have been deposited to form {HEAD ~ the desired Ga monolayer} 
stopping the depositing of Ga when { TAIL ~ sufficient atoms } of Ga have been deposited to form { HEAD ~ the desired Ga monolayer }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD