Magnetic state electrical readout of Mn12 molecules

Details Magnetic state electrical readout of Mn12 molecules Magnetic state electrical readout of Mn12 molecules

2009-05-03

arxiv.org/abs/0905.0281v1

Physics

Condensed Matter

Materials Science

8 pages, 8 figures, 2 page supplementary material

Scientific paper

We demonstrate that the different magnetic states of a Mn12 molecule can be distinguished in a two-probe transport experiment from a complete knowledge of the current-voltage curve. Our results, obtained with state-of-the-art non-equilibrium transport methods combined with density functional theory, demonstrate that spin configuration-specific negative differential resistances (NDRs) appear in the I-V curves. These originate from the interplay between electron localization and the re-hybridization of the molecular levels in an external electric field and allow the detection of the molecule's spin-state.

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