The method of growing {TAIL ~ a thin film} 5 or 6 wherein {HEAD ~ excess barium} is added to the composition 
The method of growing { TAIL ~ a thin film } 5 or 6 wherein { HEAD ~ excess barium } is added to the composition
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH