期刊
APPLIED PHYSICS LETTERS
卷 82, 期 25, 页码 4474-4476出版社
AMER INST PHYSICS
DOI: 10.1063/1.1586787
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The electron effective mass, m(e), and extent of exciton wave function, r(exc), were derived in GaAs1-yNy ( y = 0.043%-0.5%) from magnetophotoluminescence measurements. With an increase in nitrogen concentration, we find that m(e) and r(exc) undergo a rapid increase and squeezing, respectively, even for yapproximate to0.1%. This quite early manifestation of nitrogen-induced localization effects imposes important constraints on existing theoretical models. (C) 2003 American Institute of Physics.
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