TY - JOUR
T1 - Direct and indirect exciton mixture in double quantum wells
AU - Laikhtman, B.
N1 - Publisher Copyright:
© CopyrightEPLA, 2018.
PY - 2018/9
Y1 - 2018/9
N2 - The exciton system in double quantum wells is considered under the condition that the ground state is the spatially indirect exciton. At high pumping the growth of the exciton concentration can lead to such a significant increase of the indirect exciton energy that it becomes equal to the direct exciton energy. Then further increase of pumping leads to the formation of a mixed direct-indirect exciton phase. A rough estimate of the exciton energy in the mixed phase explains puzzling features of some recent exciton measurements. An experiment that would reveal the main characteristic features of the mixed phase is suggested.
AB - The exciton system in double quantum wells is considered under the condition that the ground state is the spatially indirect exciton. At high pumping the growth of the exciton concentration can lead to such a significant increase of the indirect exciton energy that it becomes equal to the direct exciton energy. Then further increase of pumping leads to the formation of a mixed direct-indirect exciton phase. A rough estimate of the exciton energy in the mixed phase explains puzzling features of some recent exciton measurements. An experiment that would reveal the main characteristic features of the mixed phase is suggested.
UR - http://www.scopus.com/inward/record.url?scp=85055848693&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/123/67001
DO - 10.1209/0295-5075/123/67001
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AN - SCOPUS:85055848693
SN - 0295-5075
VL - 123
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
IS - 6
M1 - 67001
ER -