Spectroscopy of surface-induced noise using shallow spins in diamond

Y. Romach; C. Müller; T. Unden; L. J. Rogers; T. Isoda; K. M. Itoh; M. Markham; A. Stacey; J. Meijer; S. Pezzagna; B. Naydenov; L. P. McGuinness; N. Bar-Gill; F. Jelezko

doi:10.1103/PhysRevLett.114.017601

Spectroscopy of surface-induced noise using shallow spins in diamond

Y. Romach, C. Müller, T. Unden, L. J. Rogers, T. Isoda, K. M. Itoh, M. Markham, A. Stacey, J. Meijer, S. Pezzagna, B. Naydenov, L. P. McGuinness, N. Bar-Gill, F. Jelezko

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

162 Citations (Scopus)

Abstract

We report on the noise spectrum experienced by few nanometer deep nitrogen-vacancy centers in diamond as a function of depth, surface coating, magnetic field and temperature. Analysis reveals a double-Lorentzian noise spectrum consistent with a surface electronic spin bath in the low frequency regime, along with a faster noise source attributed to surface-modified phononic coupling. These results shed new light on the mechanisms responsible for surface noise affecting shallow spins at semiconductor interfaces, and suggests possible directions for further studies. We demonstrate dynamical decoupling from the surface noise, paving the way to applications ranging from nanoscale NMR to quantum networks.

Original language	English
Article number	017601
Journal	Physical review letters
Volume	114
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.114.017601
Publication status	Published - 2015 Jun 6

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.114.017601

Cite this

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title = "Spectroscopy of surface-induced noise using shallow spins in diamond",

abstract = "We report on the noise spectrum experienced by few nanometer deep nitrogen-vacancy centers in diamond as a function of depth, surface coating, magnetic field and temperature. Analysis reveals a double-Lorentzian noise spectrum consistent with a surface electronic spin bath in the low frequency regime, along with a faster noise source attributed to surface-modified phononic coupling. These results shed new light on the mechanisms responsible for surface noise affecting shallow spins at semiconductor interfaces, and suggests possible directions for further studies. We demonstrate dynamical decoupling from the surface noise, paving the way to applications ranging from nanoscale NMR to quantum networks.",

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AU - Romach, Y.

AU - Müller, C.

AU - Unden, T.

AU - Rogers, L. J.

AU - Isoda, T.

AU - Itoh, K. M.

AU - Markham, M.

AU - Stacey, A.

AU - Meijer, J.

AU - Pezzagna, S.

AU - Naydenov, B.

AU - McGuinness, L. P.

AU - Bar-Gill, N.

AU - Jelezko, F.

PY - 2015/6/6

Y1 - 2015/6/6

N2 - We report on the noise spectrum experienced by few nanometer deep nitrogen-vacancy centers in diamond as a function of depth, surface coating, magnetic field and temperature. Analysis reveals a double-Lorentzian noise spectrum consistent with a surface electronic spin bath in the low frequency regime, along with a faster noise source attributed to surface-modified phononic coupling. These results shed new light on the mechanisms responsible for surface noise affecting shallow spins at semiconductor interfaces, and suggests possible directions for further studies. We demonstrate dynamical decoupling from the surface noise, paving the way to applications ranging from nanoscale NMR to quantum networks.

AB - We report on the noise spectrum experienced by few nanometer deep nitrogen-vacancy centers in diamond as a function of depth, surface coating, magnetic field and temperature. Analysis reveals a double-Lorentzian noise spectrum consistent with a surface electronic spin bath in the low frequency regime, along with a faster noise source attributed to surface-modified phononic coupling. These results shed new light on the mechanisms responsible for surface noise affecting shallow spins at semiconductor interfaces, and suggests possible directions for further studies. We demonstrate dynamical decoupling from the surface noise, paving the way to applications ranging from nanoscale NMR to quantum networks.

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Spectroscopy of surface-induced noise using shallow spins in diamond

Abstract

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