Time-dependent approach to electron scattering in nano structures

Wang, Jingbo; Midgley, Stuart

doi:10.1016/s0921-4526(99)02912-9

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2006

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“…The action of the Laplacian operator ∇ on the wave functions is carried out using a Fourier transformation technique [38]. It is important to note that the rapid convergence and the high numerical accuracy of this propagation scheme are well established in the literature [4,35,38,39,40], where it has been used in the study of various quantum nano-structures.…”

Section: Theorymentioning

confidence: 99%

Transmission Spectra of Two-Dimensional Quantum Structures

Manouchehri¹,

Wang²

2006

j comput theor nanosci

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To study the ballistic transport of charge carriers in nano-structured quantum devices, a highly efficient numerical technique is developed, which provides continuous transmission spectra for arbitrarily complex potential geometries in two dimensions. We apply the proposed method to single and double barrier structures and compare the results with those obtained using standard techniques for computing transmission coefficients. Excellent numerical agreement as well as considerable computational saving is demonstrated.

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