Scientific article
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Tunneling conductance and local density of states in tight-binding junctions

Publication date2011
Abstract

We study the relationship between the differential conductance and the local density of states in tight-binding tunnel junctions where the junction geometry can be varied between the point-contact and the planar-contact limits. The conductances are found to differ significantly in these two limiting cases. We also examine how the matrix element influences the tunneling characteristics and produces contrast in a simple model of scanning tunneling microscope (STM). Some implications regarding the interpretation of STM spectroscopic data in the cuprates are discussed. The calculations are carried out within the real-space Keldysh formalism.

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Citation (ISO format)
BERTHOD, Christophe, GIAMARCHI, Thierry. Tunneling conductance and local density of states in tight-binding junctions. In: Physical review. B, Condensed matter and materials physics, 2011, vol. 84, n° 15, p. 155414. doi: 10.1103/PhysRevB.84.155414
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Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN1098-0121
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Creation06/11/2012 10:54:00
First validation06/11/2012 10:54:00
Update time14/03/2023 18:44:23
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