Controlled isotope arrangement in 13C enriched carbon nanotubes

Abstract

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

8 pages, 4 figures

References in corpus (3)

• Spin gap and Luttinger liquid description of the NMR relaxation in carbon nanotubes
• Growth of single wall carbon nanotubes from ${}^{13}$C isotope labelled organic solvents inside single wall carbon nanotube hosts
• Isotopically engineered silicon nanostructures in quantum computation and communication

Cited by in corpus (1)

• Linearly controlled arrangement of ${}^{13}$C isotopes in single-wall carbon nanotubes