%0 Journal Article
%T Enhancement of the creation yield of NV ensembles in a chemically vapour deposited diamond
%+ Universität Ulm - Ulm University [Ulm, Allemagne]
%+ Laboratoire des Sciences des Procédés et des Matériaux (LSPM)
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut de Recherche de Chimie Paris (IRCP)
%A Balasubramanian, Priyadharshini
%A Osterkamp, Christian
%A Brinza, Ovidiu
%A Rollo, Maxime
%A Robert-Philip, Isabelle
%A Goldner, Philippe
%A Jacques, Vincent
%A Jelezko, Fedor
%A Achard, Jocelyn
%A Tallaire, Alexandre
%< avec comité de lecture
%@ 0008-6223
%J Carbon
%I Elsevier
%V 194
%P 282-289
%8 2022-07
%D 2022
%R 10.1016/j.carbon.2022.04.005
%K Quantum technologies
%K CVD growth
%K NV yield
%K Single crystal diamond
%K Colour centres in diamond
%K Quantum technologies
%Z Physics [physics]/Condensed Matter [cond-mat]Journal articles
%X In this work we investigate the properties of negatively charged nitrogen-vacancy (NV À) centres created during single crystal diamond growth by chemical vapour deposition (CVD) on [113]-oriented substrates and with N 2 O as a dopant gas. The use of spin echo and double electron-electron resonance (DEER) allows us to assess NV À ratio with respect to substitutional nitrogen impurities (N 0 s) incorporated during growth, a critical figure of merit for quantum technologies. We demonstrate that, at moderate growth temperatures (800 C), dense NV À ensembles of several hundreds of ppb (800 ppb for 50 ppm of added N 2 O) and with exceptionally high NV À / N 0 s ratios of up to 25% can be achieved. This NV À creation yield is higher by at least an order of magnitude to that typically obtained on standard [100]-grown diamonds and comparable to the best values reported for electron-irradiated diamonds. The material obtained here thus advantageously combines a high NV À density, high creation yield, long coherence times of several tens of ms together with a partial preferential orientation. These are highly desirable requirements for diamond-based quantum sensors that may spur new developments with this crystalline orientation leading to improved performance and sensitivity.
%G English
%2 https://hal.science/hal-03865721/document
%2 https://hal.science/hal-03865721/file/113%20multilayer%20paper%20submitted.pdf
%L hal-03865721
%U https://hal.science/hal-03865721
%~ UNIV-PARIS13
%~ ENSCP
%~ CNRS
%~ ENSC-PARIS
%~ PARISTECH
%~ OPENAIRE
%~ L2C
%~ LSPM_P13
%~ INC-CNRS
%~ PSL
%~ GALILE
%~ UNIV-MONTPELLIER
%~ SORBONNE-PARIS-NORD
%~ ENSCP-PSL
%~ ANR
%~ UM-2015-2021
%~ UM-EPE
%~ ACT-R