Charge state stabilization of shallow nitrogen vacancy centers in diamond by oxygen surface modification

Hayate Yamano, Sora Kawai, Kanami Kato, Taisuke Kageura, Masafumi Inaba, Takuma Okada, Itaru Higashimata, Moriyoshi Haruyama, Takashi Tanii, Keisuke Yamada, Shinobu Onoda, Wataru Kada, Osamu Hanaizumi, Tokuyuki Teraji, Junichi Isoya, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    We investigated the charge state stability and coherence properties of near-surface single nitrogen vacancy (NV) centers in 12C-enriched diamond for potential use in nanoscale magnetic field sensing applications. The stability of charge states in negatively charged NV centers (NV-) was evaluated using one of the pulsed optically detected magnetic resonance measurements, Rabi oscillation measurements. During the accumulation of Rabi oscillations, an unstable shallow NV- was converted to a neutral state. As a result, the contrast of Rabi oscillations degraded, depending on charge state stability. We stabilized the NV- state of very shallow NV centers (∼2.6 ± 1.1nm from the surface) created by 1.2 keV nitrogen ion implantation by diamond surface modification, UV/ozone exposure, and oxygen annealing. This improvement indicates that we can suppress the upward surface band bending and surface potential fluctuations through Fermi level pinning originating from oxygen-terminated diamond surfaces.

    Original languageEnglish
    Article number04CK08
    JournalJapanese Journal of Applied Physics
    Volume56
    Issue number4
    DOIs
    Publication statusPublished - 2017 Apr 1

    Fingerprint

    Vacancies
    Surface treatment
    Diamonds
    Stabilization
    stabilization
    diamonds
    Nitrogen
    nitrogen
    Oxygen
    oxygen
    oscillations
    Magnetic resonance measurement
    nitrogen ions
    Surface potential
    ozone
    magnetic resonance
    ion implantation
    Fermi level
    Ion implantation
    Ozone

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Charge state stabilization of shallow nitrogen vacancy centers in diamond by oxygen surface modification. / Yamano, Hayate; Kawai, Sora; Kato, Kanami; Kageura, Taisuke; Inaba, Masafumi; Okada, Takuma; Higashimata, Itaru; Haruyama, Moriyoshi; Tanii, Takashi; Yamada, Keisuke; Onoda, Shinobu; Kada, Wataru; Hanaizumi, Osamu; Teraji, Tokuyuki; Isoya, Junichi; Kawarada, Hiroshi.

    In: Japanese Journal of Applied Physics, Vol. 56, No. 4, 04CK08, 01.04.2017.

    Research output: Contribution to journalArticle

    Yamano, H, Kawai, S, Kato, K, Kageura, T, Inaba, M, Okada, T, Higashimata, I, Haruyama, M, Tanii, T, Yamada, K, Onoda, S, Kada, W, Hanaizumi, O, Teraji, T, Isoya, J & Kawarada, H 2017, 'Charge state stabilization of shallow nitrogen vacancy centers in diamond by oxygen surface modification', Japanese Journal of Applied Physics, vol. 56, no. 4, 04CK08. https://doi.org/10.7567/JJAP.56.04CK08
    Yamano, Hayate ; Kawai, Sora ; Kato, Kanami ; Kageura, Taisuke ; Inaba, Masafumi ; Okada, Takuma ; Higashimata, Itaru ; Haruyama, Moriyoshi ; Tanii, Takashi ; Yamada, Keisuke ; Onoda, Shinobu ; Kada, Wataru ; Hanaizumi, Osamu ; Teraji, Tokuyuki ; Isoya, Junichi ; Kawarada, Hiroshi. / Charge state stabilization of shallow nitrogen vacancy centers in diamond by oxygen surface modification. In: Japanese Journal of Applied Physics. 2017 ; Vol. 56, No. 4.
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