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WAVE-FUNCTION MATCHING IN SCATTERING MATRIX CALCULATIONS FOR HARD-WALL NANOSTRUCTURES
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UNSPECIFIED (1995) WAVE-FUNCTION MATCHING IN SCATTERING MATRIX CALCULATIONS FOR HARD-WALL NANOSTRUCTURES. JOURNAL OF PHYSICS-CONDENSED MATTER, 7 (4). pp. 745-758. ISSN 0953-8984.
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Abstract
A nanostructure with hard walls is divided into two regions: the terminals and the 'cavity' that connects them. In the absence of a magnetic field the modes in the terminals may be written down immediately. The modes in the cavity are calculated by extending each terminal mode continuously into the cavity and applying hard-wall boundary conditions elsewhere on the cavity boundary. Then a general wave function psi continuous everywhere may be written down. The relationships between the coefficients of the modes in psi are determined by minimizing the mean square discontinuity in the normal derivative of psi averaged over all the interfaces between the terminals and the cavity. This method has been found to be robust and efficient in calculations of the conductance matrix and scattering wave functions for a to quantum wire with a hard-wall finger of various shapes pushed in through one side.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | JOURNAL OF PHYSICS-CONDENSED MATTER | ||||
Publisher: | IOP PUBLISHING LTD | ||||
ISSN: | 0953-8984 | ||||
Official Date: | 23 January 1995 | ||||
Dates: |
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Volume: | 7 | ||||
Number: | 4 | ||||
Number of Pages: | 14 | ||||
Page Range: | pp. 745-758 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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