Optimizing the Production of Single Group IV Color Centers in Diamond

ORAL

Abstract

The excitement of color centers, like the NV vacancy center in diamond, has been motivated by their use as single-photon emitters for applications in quantum information technology. Recent work has shown that a number of color centers in diamond using other Group IV elements (e.g. SiV, GeV, SnV and PbV)1 may also be good candidates for quantum emitters. In this work we use density-functional theory (DFT) to study the thermodynamics and kinetics of these Group IV color centers in diamond. We find that for p-type diamond the production of isolated color centers will be enhanced. We further investigate the stability of complexes of these Group IV color centers in diamond with carbon vacancies which are present in diamond in abundance after implantation. We believe that this work may lead to optimal experimental conditions which lead to longer coherence times for color centers as previously discussed in the literature.2

[1] G. Thiering and A. Gali, Phys. Rev. X, 8, 021063, (2018).
[2] B. Naydenov, F. Reinhard, A. Lämmle, V. Richter, R. Kalish, U. F. D’Haenens-Johansson, M. Newton, F. Jelezko, and J. Wrachtrup, App. Phys. Lett. 97, 242511 (2010).

–

Presenters

  • Rodrick Kuate Defo

    Harvard University

Authors

  • Rodrick Kuate Defo

    Harvard University

  • Efthimios Kaxiras

    Harvard University, Department of Physics, Harvard University, Physics, Harvard University

  • Steven L Richardson

    Howard University, Harvard University