The quantum conductance of the paradigmatic quasi-one-dimensional In/Si(111) surface system is calculated for 4 x 1, 4 x 2 and 8 x 2 surface reconstructions. In agreement with experiment, we find the recently suggested formation of hexagons within the In nanowires [C. Gonzalez, F. Flores, J. Ortega, Phys. Rev. Lett. 96 (2006) 136101] to drastically modify the electron transport along the In chains. In contrast, the formation of trimers barely changes the quantum conductance.
Quantum conductance of In nanowires on Si(111) from first principles calculations
A Calzolari;
2007
Abstract
The quantum conductance of the paradigmatic quasi-one-dimensional In/Si(111) surface system is calculated for 4 x 1, 4 x 2 and 8 x 2 surface reconstructions. In agreement with experiment, we find the recently suggested formation of hexagons within the In nanowires [C. Gonzalez, F. Flores, J. Ortega, Phys. Rev. Lett. 96 (2006) 136101] to drastically modify the electron transport along the In chains. In contrast, the formation of trimers barely changes the quantum conductance.File in questo prodotto:
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