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arXiv · 0911.0571

Dzyaloshinskii-Moriya interaction in transport through single molecule transistors

S. Herzog·M. R. Wegewijs
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Abstract

The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single molecule transistor. We predict non-linear transport signatures of this effect induced by spin-orbit coupling for the generic case of a molecular dimer. The conductance is calculated using a master equation and is found to exhibit a non-trivial dependence on the magnitude and direction of an external magnetic field. We show how three-terminal transport measurements allow for a determination of the coupling-vector characterizing the Dzyaloshinskii-Moriya interaction. In particular, we show how its orientation, defining the intramolecular spin chirality, can be probed with ferromagnetic electrodes.

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S. Herzog, M. R. Wegewijs. 2009-11-03. Dzyaloshinskii-Moriya interaction in transport through single molecule transistors. https://doi.org/10.1088/0957-4484%2F21%2F27%2F274010

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