Highly aligned 2D NV ensemble fabrication from nitrogen-terminated (111) surface

Tetsuya Tatsuishi; Kyotaro Kanehisa; Taisuke Kageura; Takahiro Sonoda; Yuki Hata; Kazuto Kawakatsu; Takashi Tanii; Shinobu Onoda; Alastair Stacey; Shozo Kono; Hiroshi Kawarada

doi:10.1016/j.carbon.2021.04.057

Highly aligned 2D NV ensemble fabrication from nitrogen-terminated (111) surface

Tetsuya Tatsuishi, Kyotaro Kanehisa, Taisuke Kageura, Takahiro Sonoda, Yuki Hata, Kazuto Kawakatsu, Takashi Tanii, Shinobu Onoda, Alastair Stacey, Shozo Kono, Hiroshi Kawarada

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

8 Scopus citations

Abstract

The nitrogen vacancy (NV) center in diamond is fascinating and has a long spin coherence time. It is applied to magnetic sensors with high sensitivity (∼fT). To achieve a high sensitivity, an aligned NV ensemble is required. This paper presents a new methodology for the fabrication of two-dimensional (2D) aligned NV ensembles by using nitrogen-terminated (111) surface. To realize this, pure diamond growth and high nitrogen coverage on (111) surface were performed. As a result, we have succeeded in producing 2D NV ensembles, with 1 × 10⁹ cm⁻². Coherence time T₂ was 2.45 μs. Also, Using dynamical decoupling, the decoherence sources were revealed. The alignment ratio along [111] axis was archived 60%. Thermal annealing of the nitrogen termination was introduced to improve the alignment ratio. After that, the alignment rate was up to 73%. This report shows that the aligned 2D NV ensemble has possibility to be applied for multiple quantum devices.

Original language	English (US)
Pages (from-to)	127-134
Number of pages	8
Journal	Carbon
Volume	180
DOIs	https://doi.org/10.1016/j.carbon.2021.04.057
State	Published - Aug 15 2021
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science

Keywords

(111) diamond surface
Diamond
Diamond growth
Nitrogen termination
NV center

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10.1016/j.carbon.2021.04.057

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title = "Highly aligned 2D NV ensemble fabrication from nitrogen-terminated (111) surface",

abstract = "The nitrogen vacancy (NV) center in diamond is fascinating and has a long spin coherence time. It is applied to magnetic sensors with high sensitivity (∼fT). To achieve a high sensitivity, an aligned NV ensemble is required. This paper presents a new methodology for the fabrication of two-dimensional (2D) aligned NV ensembles by using nitrogen-terminated (111) surface. To realize this, pure diamond growth and high nitrogen coverage on (111) surface were performed. As a result, we have succeeded in producing 2D NV ensembles, with 1 × 109 cm−2. Coherence time T2 was 2.45 μs. Also, Using dynamical decoupling, the decoherence sources were revealed. The alignment ratio along [111] axis was archived 60\%. Thermal annealing of the nitrogen termination was introduced to improve the alignment ratio. After that, the alignment rate was up to 73\%. This report shows that the aligned 2D NV ensemble has possibility to be applied for multiple quantum devices.",

keywords = "(111) diamond surface, Diamond, Diamond growth, Nitrogen termination, NV center",

author = "Tetsuya Tatsuishi and Kyotaro Kanehisa and Taisuke Kageura and Takahiro Sonoda and Yuki Hata and Kazuto Kawakatsu and Takashi Tanii and Shinobu Onoda and Alastair Stacey and Shozo Kono and Hiroshi Kawarada",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = aug,

day = "15",

doi = "10.1016/j.carbon.2021.04.057",

language = "English (US)",

volume = "180",

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T1 - Highly aligned 2D NV ensemble fabrication from nitrogen-terminated (111) surface

AU - Tatsuishi, Tetsuya

AU - Kanehisa, Kyotaro

AU - Kageura, Taisuke

AU - Sonoda, Takahiro

AU - Hata, Yuki

AU - Kawakatsu, Kazuto

AU - Tanii, Takashi

AU - Onoda, Shinobu

AU - Stacey, Alastair

AU - Kono, Shozo

AU - Kawarada, Hiroshi

PY - 2021/8/15

Y1 - 2021/8/15

N2 - The nitrogen vacancy (NV) center in diamond is fascinating and has a long spin coherence time. It is applied to magnetic sensors with high sensitivity (∼fT). To achieve a high sensitivity, an aligned NV ensemble is required. This paper presents a new methodology for the fabrication of two-dimensional (2D) aligned NV ensembles by using nitrogen-terminated (111) surface. To realize this, pure diamond growth and high nitrogen coverage on (111) surface were performed. As a result, we have succeeded in producing 2D NV ensembles, with 1 × 109 cm−2. Coherence time T2 was 2.45 μs. Also, Using dynamical decoupling, the decoherence sources were revealed. The alignment ratio along [111] axis was archived 60%. Thermal annealing of the nitrogen termination was introduced to improve the alignment ratio. After that, the alignment rate was up to 73%. This report shows that the aligned 2D NV ensemble has possibility to be applied for multiple quantum devices.

AB - The nitrogen vacancy (NV) center in diamond is fascinating and has a long spin coherence time. It is applied to magnetic sensors with high sensitivity (∼fT). To achieve a high sensitivity, an aligned NV ensemble is required. This paper presents a new methodology for the fabrication of two-dimensional (2D) aligned NV ensembles by using nitrogen-terminated (111) surface. To realize this, pure diamond growth and high nitrogen coverage on (111) surface were performed. As a result, we have succeeded in producing 2D NV ensembles, with 1 × 109 cm−2. Coherence time T2 was 2.45 μs. Also, Using dynamical decoupling, the decoherence sources were revealed. The alignment ratio along [111] axis was archived 60%. Thermal annealing of the nitrogen termination was introduced to improve the alignment ratio. After that, the alignment rate was up to 73%. This report shows that the aligned 2D NV ensemble has possibility to be applied for multiple quantum devices.

KW - (111) diamond surface

KW - Diamond

KW - Diamond growth

KW - Nitrogen termination

KW - NV center

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DO - 10.1016/j.carbon.2021.04.057

M3 - Article

AN - SCOPUS:85105724218

SN - 0008-6223

VL - 180

SP - 127

EP - 134

JO - Carbon

JF - Carbon

ER -

Highly aligned 2D NV ensemble fabrication from nitrogen-terminated (111) surface

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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