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Exciton Investigations and the Urbach Tails of Gd Doped and Undoped GaSe
GaSe GaSe:Gd exciton Urbach tails binding energy phase transition
2010/4/15
Absorption measurements were carried out in GaSe and GaSe:Gd samples in temperature range 10-320 K in steps 10 K. The first and the second (n=1 and n=2) excitonic levels were marked. The first exciton...
