Article ID Journal Published Year Pages File Type
1860544 Physics Letters A 2016 9 Pages PDF
Abstract

•Voltage driven circular current is analyzed in a fractal network.•Current induced magnetic field is strong enough to flip a spin.•Anisotropy in hopping enhances overall transport current.

We present the overall conductance as well as the circulating currents in individual loops of a Sierpinski gasket (SPG) as we apply bias voltage via the side attached electrodes. SPG being a self-similar structure, its manifestation on loop currents and magnetic fields is examined in various generations of this fractal and it has been observed that for a given configuration of the electrodes, the physical quantities exhibit certain regularity as we go from one generation to another. Also a notable feature is the introduction of anisotropy in hopping causes an increase in magnitude of overall transport current. These features are a subject of interest in this article.

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Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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