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Geometry dependence of the conductance oscillations of monovalent atomic chains
Author(s) -
Major Péter,
Tichy Géza,
Cserti József,
GarcíaSuárez Víctor Manuel,
Sirichantaropass Skon
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200642159
Subject(s) - conductance , chain (unit) , parametric statistics , tight binding , condensed matter physics , oscillation (cell signaling) , coupling (piping) , physics , geometry , chemistry , materials science , quantum mechanics , mathematics , electronic structure , biochemistry , statistics , metallurgy
Using a tight binding model we calculate the conductance of monovalent atomic chains for different contact geometries. The leads connected to the chains are modelled as semi‐infinite fcc lattices with different orientations and couplings. Our aim is twofold: To check the validity of a three‐parametric conductance formula for differently oriented leads, and to investigate the geometry dependence of the conductance oscillations. We show that the character of these oscillations depends strongly on the geometry of the chain–lead coupling. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)