The second electrode is made of an Mg—Ag layer having {HEAD ~ a thickness} in {TAIL ~ a range} of 170 Å to 200 Å 
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The second electrode is made of an Mg — Ag layer having { HEAD ~ a thickness } in { TAIL ~ a range } of 170 Å to 200 Å
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH