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- W2016002118 abstract "The electron–electron scattering rate (1/τee) in the presence of a random disorder potential has been computed, within the random phase approximation, as a function of excitation energy (e) for a quantum well (QWL), a quantum wire (QWR) and a periodic quantum wire structure (QWS). It is found that: (i) 1/τee goes to zero when and (ii) the e dependence as well as the magnitude of 1/τee are determined by the value of the inverse electron–impurity collision time (1/τ), the carrier density and the width of a QWR. The computed 1/τee exhibits its maximum value for and it decreases thereafter on increasing 1/τ, for all values of e and other parameters. The computed 1/τee of a QWR declines monotonically with the width of the QWR and it reduces to 1/τee of a QWL at larger wire widths, for a given value of e and the other intrinsic parameters. The 1/τee of a QWS differs from that of a QWR because of the added contribution from inter-wire electron–electron interactions in a QWS. For the given values of e, 1/τ, carrier density and the width of a QWR, the 1/τee of a QWS is found to be smaller than that of a QWR and larger than that of a QWL. This suggests that the electron–electron scattering rate is enhanced on the reduction in the effective dimensionality of a system. Our theoretical study of 1/τee and its dependence on various intrinsic parameters of QWL, QWR and QWS suggests, in conclusion, that a quasi-particle Fermi liquid description can be applied to electron–electron scattering in the presence of an electron-disorder potential scattering, at zero temperature, in low-dimensional systems." @default.
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- W2016002118 title "Electron–electron scattering rate in presence of random impurity potential in low-dimensional systems" @default.
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- W2016002118 doi "https://doi.org/10.1088/0953-8984/16/18/013" @default.
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