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Ta 4 FeTe 4 : a new material for metallic single molecular wires

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  • C. Heinrich
  • M. Panthöfer
  • W. Tremel

Abstract

Bulk Ta 4 FeTe 4 is a highly anisotropic metallic compound consisting of single molecular wires. In the crystalline bulk phase, sub-nanometer wires self-assemble to form a hexagonal packing of rods resulting in a fibrous crystal morphology. In this work we report the synthesis and crystal growth of single crystalline Ta 4 FeTe 4 nanowire bundles with a length of several millimeters and an aspect ratio exceeding > 10 5 . The nanowire bundle diameter could further be decreased by intercalation-exfoliation. Our results show that depending on the unbundling method nanowires of different length and diameter are accessible. A complete unbundling to single molecular wires of 7.9 Å is feasible with this methodology. As the Ta 4 FeTe 4 nanowires are held together only by van der Waals interactions the properties of single molecular wires may be expected similar to those of the metallic bulk material. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Suggested Citation

  • C. Heinrich & M. Panthöfer & W. Tremel, 2012. "Ta 4 FeTe 4 : a new material for metallic single molecular wires," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 85(7), pages 1-6, July.
    • Handle: RePEc:spr:eurphb:v:85:y:2012:i:7:p:1-6:10.1140/epjb/e2012-20853-4
    DOI: 10.1140/epjb/e2012-20853-4
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