Abstract
With the relentless demand for smaller computing components, low-dimensional objects such as quantum wires and graphene nanoribbons are of special interest for future spintronics applications. A key issue is the injection of spin-polarized charge carriers into these systems via tunneling. In this study, the role of barrier strength in carrier injection is investigated both experimentally and theoretically, using carbon nanotubes (CNTs) as a model system. The results show how to understand, and control, the performance of CNT-based spin valves.
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