Article ID Journal Published Year Pages File Type
9789574 Physica E: Low-dimensional Systems and Nanostructures 2005 5 Pages PDF
Abstract
Using the recursion-transfer-matrix (RTM) method combined with nonequilibrium Green's function (NEGF) method, we study the electronic states and current-voltage (I-V) characteristics of junction systems with atomic-scale nanocontacts as a function of the distance between electrodes. We observe a strong nonlinear behavior in the I-V characteristics and correspondingly a gap structure appears in conductance. We find that such a nonlinear behavior emerges when the transport properties change from tunneling to ballistic regimes.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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