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- W2012137386 abstract "We present a joint study of the band offsets and exciton binding energies in ${mathrm{Zn}}_{1mathrm{ensuremath{-}}mathit{x}}$${mathrm{Cd}}_{mathit{x}}$Se-ZnSe quantum wells grown by metal-organic vapor-phase epitaxy with cadmium composition ranging up to 22%. The optical-spectroscopy data presented here are the wavelength derivative of the 2-K reflectance. The strained band-gap difference is divided as follows: the heavy-hole valence-band share deduced from the calculation is 32ifmmodepmelsetextpmfi{}1%; the remainder is allotted to the electron conduction band. The exciton binding energy has been calculated within the context of two methods: first, we propose a variational calculation using an exciton wave function written as the product of the envelope-function solutions of the square-well problem with a hydrogenlike two-parameter trial function. Second, as the light-hole potential is marginally type I, we lay out a more sophisticated computation based on a self-consistent variational approach that gives both the exciton binding energies and the self-consistent light-hole densities of probability. We compare the full information given by these two approaches." @default.
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- W2012137386 date "1995-02-15" @default.
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- W2012137386 title "Band offsets and exciton binding energies in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Zn</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi mathvariant=normal>−</mml:mi><mml:mi mathvariant=italic>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Cd</mml:mi></mml:…" @default.
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- W2012137386 doi "https://doi.org/10.1103/physrevb.51.4699" @default.
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