Pure negatively charged state of the NV center in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>n</mml:mi></mml:math>-type diamond

Doi, Yuki; Fukui, Tsuguya; Kato, Hiromitsu; Makino, Toshiharu; Yamasaki, Satoshi; Tashima, Toshiyuki; Morishita, Hiroki; Miwa, Shinji; Jelezko, Fedor; Suzuki, Y.; Mizuochi, Norikazu

doi:10.1103/physrevb.93.081203

Cited by 83 publications

(64 citation statements)

References 42 publications

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“…A higher dose of 10 14 cm −2 can even stabilize NV centers at less than 5 nm depth without electrical gating [60]. Moreover, it has been shown that phosphorous doping can also effectively produce a pure NV − population [69]. This is based on the fact that phosphorous-donor level is 0.57 eV below CBM [70], which is much lower than that of nitrogen (1.7 eV).…”

Section: B Stability Of Shallow Nv − Centersmentioning

confidence: 99%

Role of exchange interaction in nitrogen vacancy center based magnetometry

Tan

Jalil

et al. 2016

Phys. Rev. B

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We propose a multilayer device comprising of a thin-film-based ferromagnetic hetero-structure (FMH) deposited on a diamond layer doped with nitrogen vacancy centers (NVC's). We find that when the NVC's are in close proximity (1-2 nm) with the FMH, the exchange energy is comparable to, and may even surpass the magnetostatic interaction energy. This calls for the need to consider and utilize both effects in magnetometry based on NVC's in diamond. As the distance between the FMH and NVC is decreased to the sub-nanometer scale, the exponential increase in the exchange energy suggests spintronic applications of NVC beyond magnetometry, such as detection of spin-Hall effect or spin currents.

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Section: B Stability Of Shallow Nv − Centersmentioning

confidence: 99%

Role of exchange interaction in nitrogen vacancy center based magnetometry

Tan

Jalil

et al. 2016

Phys. Rev. B

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“…In particular, P impurities donate an electron to NV 0 , due to the fact that the P activation energy is low (E A = 0.57 eV) compared to NV acceptor states (E NV = 2.58 eV). In this way, a five-fold increase in luminescence and a pure NV − state was observed for a single NV [67] and a P doping p = 5 × 10 16 cm −3 . It should be noted that this single NV had a short coherence time T 2 = (19.77 ± 0.27) µs, and the depth of the NV center in this case was not reported.…”

Section: Methods To Improve Stability and Photoluminescencementioning

confidence: 89%

“…Another way to change the Fermi level of diamond is by boron or phosphorus (P) doping [67,74]. In particular, P impurities donate an electron to NV 0 , due to the fact that the P activation energy is low (E A = 0.57 eV) compared to NV acceptor states (E NV = 2.58 eV).…”

Section: Methods To Improve Stability and Photoluminescencementioning

confidence: 99%

“…Stabilizing the NV − state close to the surface involves controlling the Fermi level in diamond [64][65][66][67]. The Fermi level, and consequently the NV − population, can be controlled via chemical functionalization of the surface [64,65,68,69] (see Figure 3a,b) by applying an electrolyte gate voltage [70] (see Figure 3c) using in-plane gate nanostructures [71] or via doping the diamond [67]. First, we consider the decrease in the NV − population of shallow NV centers close to a hydrogen (H)-terminated surface compared to an oxygenated surface [64,65].…”

Section: Methods To Improve Stability and Photoluminescencementioning

confidence: 99%

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Nanoscale Sensing Using Point Defects in Single-Crystal Diamond: Recent Progress on Nitrogen Vacancy Center-Based Sensors

et al. 2017

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Individual, luminescent point defects in solids, so-called color centers, are atomic-sized quantum systems enabling sensing and imaging with nanoscale spatial resolution. In this overview, we introduce nanoscale sensing based on individual nitrogen vacancy (NV) centers in diamond. We discuss two central challenges of the field: first, the creation of highly-coherent, shallow NV centers less than 10 nm below the surface of a single-crystal diamond; second, the fabrication of tip-like photonic nanostructures that enable efficient fluorescence collection and can be used for scanning probe imaging based on color centers with nanoscale resolution.

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“…In the experiments, the NV center ensembles are produced by high dosage (10 13 cm −2 ) nitrogen ion implantation. However, nitrogen defect, as donor of electron [33][34][35] , could change the level structure in diamond 36,37 . Therefore, high dosage ion implantation might change the charge state conversion process of NV center, which will subsequently affect the results of CSD nanoscopy.…”

mentioning

confidence: 99%

Optical far-field super-resolution microscopy using nitrogen vacancy center ensemble in bulk diamond

Shen

Chen

Yang

et al. 2016

Applied Physics Letters

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We demonstrate an optical far-field super-resolution microscopy using array of nitrogen vacancy centers in bulk diamond as near-field optical probes. The local optical field, which transmits through the nanostructures on the diamond surface, is measured by detecting the charge state conversion of nitrogen vacancy center. And the locating of nitrogen vacancy center with spatial resolution of 6.1 nm is realized with the charge state depletion nanoscopy. The nanostructures on the surface of diamond are then imaged with resolution below optical diffraction limit. The results offer an approach to built a general-purpose optical super-resolution microscopy and a convenient platform for high spatial resolution quantum sensing with nitrogen vacancy center.With stable fluorescence, optically initialized spin state and long spin coherence time, the nitrogen vacancy (NV) center in diamond is a promising candidate for quantum metrology 1,2 . High sensitive detection of electromagnetic field and temperature have been demonstrated with NV center 3-7 , even in living biological cells [8][9][10] . Due to the sub-nanometer size, high spatial resolution is one of the most important advantage of NV based sensors. Typically, it is realized by scanning a specially prepared tip with attached nanodiamond 4,5,11-13 . However, the presence and movement of tips may change the local field distribution at the nanoscale 14,15 . Additionally, the preparation of the tips is usually difficult16 . An alternative method is to replace the scanning tips with highdensity non-scanning array of NV centers, whose relative positions and statuses are obtained through optical far-field microscopy 17-20 . However, the spatial resolution with conventional optical microscopy is limited by the diffraction. Recently, several different types of optical nanoscopy methods for NV center imaging have been developed [21][22][23][24][25][26][27] . Therefore, it is possible to use NV center ensemble arrays as probes to realize sub-diffraction spatial resolution quantum sensing.In particular, the local optical field detection with high spatial resolution is interesting in diverse fields ranging from nanophotonics to biosensing 4,14,15 . In this work, we demonstrate the local optical field detection with subdiffraction resolution using NV center ensemble in bulk diamond as probes, as shown in Fig. 1(a). The light transmitted through nanostructure on the diamond surface is measured with the charge state conversion of nearfield NV center probes. And the high spatial resolution imaging of NV is realized with charge state depletion (CSD) nanoscopy. Subsequently, the sub-diffraction images of the nanostructures on the diamond plate surface are obtained via local optical field detection. A generalpurpose super-resolution Microscopy with Array of Nearfield Probes (MANP) is constructed based on the results. Furthermore, because the NV center is also sensitive to electromagnetic fields, temperature and pressure 28 , the present technique provides a convenient method to establis...

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Pure negatively charged state of the NV center inn-type diamond

Cited by 83 publications

References 42 publications

Role of exchange interaction in nitrogen vacancy center based magnetometry

Role of exchange interaction in nitrogen vacancy center based magnetometry

Nanoscale Sensing Using Point Defects in Single-Crystal Diamond: Recent Progress on Nitrogen Vacancy Center-Based Sensors

Optical far-field super-resolution microscopy using nitrogen vacancy center ensemble in bulk diamond

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