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arXiv · 1611.03623

Controlled isotope arrangement in 13C enriched carbon nanotubes

János Koltai·Gréta Mezei·Viktor Zólyomi·Jenő Kürti·Hans Kuzmany·Thomas Pichler·Ferenc Simon
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Abstract

We report the synthesis of a novel isotope engineered $^{13}{\rm C}$--$^{12}{\rm C}$ heteronuclear nanostructure: single-wall carbon nanotubes made of $^{13}{\rm C}$ enriched clusters which are embedded in natural carbon regions. The material is synthesized with a high temperature annealing from $^{13}{\rm C}$ enriched benzene and natural ${\rm C}_{60}$, which are co-encapsulated inside host SWCNTs in an alternating fashion. The Raman 2D line indicates that the $^{13}{\rm C}$ isotopes are not distributed uniformly in the inner tubes. A semi-empirical method based modeling of the Raman modes under $^{13}{\rm C}$ isotope enrichment shows that experimental data is compatible with the presence of $^{13}{\rm C}$ rich clusters which are embedded in a natural carbon containing matrix. This material may find applications in quantum information processing and storage using nuclear spins as qubits.

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János Koltai, Gréta Mezei, Viktor Zólyomi, Jenő Kürti, Hans Kuzmany, Thomas Pichler, Ferenc Simon. 2016-11-11. Controlled isotope arrangement in 13C enriched carbon nanotubes. https://doi.org/10.1021/acs.jpcc.6b11367

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