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- W2065400912 abstract "The ground-state energy of a ${D}^{ensuremath{-}}$ ion (a donor impurity ion with two attached electrons) in a two-dimensional semiconductor is calculated using a variational approach and is found to be about -4.48 Ry. The ground-state energy of a hydrogenic system in two dimensions is known to be -4 Ry. Thus the binding energy of a ${D}^{ensuremath{-}}$ ion, defined as the energy required to remove one of the two electrons from the ${D}^{ensuremath{-}}$ ion to infinity, is about 0.48 Ry. This is about 12% of the ground-state energy of a hydrogenic system in two dimensions. This is to be compared with the binding energy of a ${D}^{ensuremath{-}}$ ion in three dimensions which is 5.55% of the hydrogenic ground-state energy. The relevance of our results to the problem of a ${D}^{ensuremath{-}}$ ion in thin-quantum-well structures is discussed." @default.
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- W2065400912 date "1983-04-15" @default.
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- W2065400912 title "Ground-state energy of a<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>ion in two-dimensional semiconductors" @default.
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- W2065400912 doi "https://doi.org/10.1103/physrevb.27.4883" @default.
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