The present invention includes the discovery that BeTe is chemically active in air and tends to react with {HEAD ~ oxygen} to form {TAIL ~ an amorphous BeO layer} 
to form
The present invention includes the discovery that BeTe is chemically active in air and tends to react with { HEAD ~ oxygen } to form { TAIL ~ an amorphous BeO layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL