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6CCVD Research

The bulk conversion depth of the NV-center in diamond - computing a charged defect in a neutral slab

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2019-05-01
JournalNew Journal of Physics
AuthorsRobin Lƶfgren, Ravinder Pawar, Sven Ɩberg, J. Andreas Larsson
InstitutionsLuleƄ University of Technology
Citations16

Abstract

Section titled ā€œAbstractā€

Abstract The negatively charged nitrogen vacancy (NV āˆ’ ) center in diamond has properties that make it a promising candidate for applications such as a qubit in room temperature quantum computing, single-molecule photoluminescence and NMR sensor, and as a single photon source for quantum cryptography. For many of its uses it is desirable to have the NV-center close to the diamond surface. In this work, we use density functional theory simulations to investigate how the distance of the NV āˆ’ center to a surface, and its orientation, affect its properties, including the zero-phonon-line. We study the three technologically important surfaces terminated with fluorine, oxygen/hydroxyl and nitrogen. Since the NV-center is charged it requires special measures to simulate within a slab-model. We use the recently proposed charging with a substitutional donor in the diamond lattice resulting in a neutral super-cell, which provides very satisfactory results. We have found that the NV-centers properties converge to bulk values already at 5 ƅ depth.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2013 - The nitrogen-vacancy colour centre in diamond [Crossref]
  2. 2008 - Scanning magnetic field microscope with a diamond single-spin sensor [Crossref]
  3. 2008 - High-sensitivity diamond magnetometer with nanoscale resolution [Crossref]
  4. 2008 - Nanoscale imaging magnetometry with diamond spins under ambient conditions [Crossref]
  5. 1990 - Electric-field-induced modulation of spin echoes of N-V centers in diamond [Crossref]
  6. 2011 - Electric-field sensing using single diamond spins [Crossref]
  7. 2013 - Nanoscale magnetic imaging of a single electron spin under ambient conditions [Crossref]
  8. 2013 - Nanoscale nuclear magnetic resonance with a nitrogen-vacancy spin sensor [Crossref]
  9. 2013 - Nuclear magnetic resonance spectroscopy on a (5-Nanometer)(3) sample volume [Crossref]
  10. 2013 - Negatively charged nitrogen-vacancy centers in a 5 nm thin C-12 diamond film [Crossref]

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