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Lookup NU author(s): Mohammed Atumi, Professor Jon Goss, Professor Patrick Briddon, Dr Mark Rayson
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Diamond, as a consequence of its superlative intrinsic physical properties, is an attractive material for a wide range of applications. Recent developments have greatly enhanced the quality of gas-phase grown diamonds. It has been observed that some defects are grown into diamond preferentially aligned to specific orientations with respect to growth surface. Of particular note, the nitrogen-vacancy center is polarized in (110)-grown material. Preferential alignment of these defects in diamond may enhance their use in applications such as quantum information and encryption, and in diamond-based magnetometers. The origin of the preferential orientation with respect to the growth surface is not completely understood, and a mechanistic model is highly desirable in order that one might both optimize defect incorporation and better understand the growth of diamond in a wider sense. We present the results of quantum-chemical simulations that provide insight into the preferential alignment of nitrogen-related defects grown into different diamond surface orientations, showing that the sequence of structure surfaces required to produce polarization aligns with their energies.
Author(s): Atumi MK, Goss JP, Briddon PR, Rayson MJ
Publication type: Article
Publication status: Published
Journal: Physical Review B
Year: 2013
Volume: 88
Issue: 24
Online publication date: 03/12/2013
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevB.88.245301
DOI: 10.1103/PhysRevB.88.245301
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