Conformation-dependent electron transport through a biphenyl molecule: Circular current and related issues

Abstract

We investigate the conformation-dependent electron transfer in a biphenyl molecule within a simple tight-binding framework. The overall junction current and circular currents in two benzene rings driven by applied bias voltage are calculated by using Green's function formalism. Our analysis may provide the possibilities of using organic molecules with loop substructures to design molecular spintronic devices, indicating the emergence of molecular spintronics.

8 pages, 11 figures

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• Verification of cosine squared relation of electronic conductance in a biphenyl molecule
• Charge-based re-programmable logic device with built-in memory: New era in molecular electronics
• Magnetic response of non-interacting and interacting electrons in a Möbius strip