Nanoscale nuclear magnetic resonance with chemical resolution

Aslam, Nabeel; Pfender, Matthias; Neumann, Philipp; Reuter, Rolf; Zappe, Andrea; Oliveira, Felipe Fávaro de; Denisenko, Andrej; Sumiya, Hitoshi; Onoda, Shinobu; Isoya, Junichi; Wrachtrup, Jörg

doi:10.1126/science.aam8697

Cited by 311 publications

(395 citation statements)

References 51 publications

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“…While the real benefit of this will only be of practical relevance, once a future “nano‐NMR spectrometer” is constructed, stochastic NMR excitation techniques using an RF noise source may also take advantage from the DBU principle . The DBU acceleration principle for coherent spectroscopic techniques is not limited to Faraday detection as in the application outlined here, it is likewise suitable to be incorporated in optical detection methods, as for example in the novel nano‐scale NMR detected indirectly by NV‐centers in diamonds …”

Section: Figuresupporting

confidence: 72%

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Spin‐Noise‐Detected Two‐Dimensional Nuclear Magnetic Resonance at Triple Sensitivity

et al. 2018

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A major breakthrough in speed and sensitivity of 2 D spin‐noise‐detected NMR is achieved owing to a new acquisition and processing scheme called “double block usage” (DBU) that utilizes each recorded noise block in two independent cross‐correlations. The mixing, evolution, and acquisition periods are repeated head‐to‐tail without any recovery delays and well‐known building blocks of multidimensional NMR (constant‐time evolution and quadrature detection in the indirect dimension as well as pulsed field gradients) provide further enhancement and artifact suppression. Modified timing of the receiver electronics eliminates spurious random excitation. We achieve a threefold sensitivity increase over the original snHMQC (spin‐noise‐detected heteronuclear multiple quantum correlation) experiment (K. Chandra et al., J. Phys. Chem. Lett. 2013, 4, 3853) and demonstrate the feasibility of spin‐noise‐detected long‐range correlation.

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Section: Figuresupporting

confidence: 72%

“…[24] The DBU acceleration principle for coherent spectroscopic techniques is not limited to Faraday detection as in the application outlined here, it is likewise suitable to be incorporated in optical detection methods, as for example in the novel nano-scale NMRdetected indirectly by NV-centers in diamonds. [25]…”

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confidence: 99%

Spin‐Noise‐Detected Two‐Dimensional Nuclear Magnetic Resonance at Triple Sensitivity

et al. 2018

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“…High-sensitivity NMR detection under ambient conditions opens new possibilities, such as the chemical identification of an extremely small quantity of organic molecules [39]. In the near future, advanced miniaturization processes will enable the fabrication of a diamond chip with microfluidics and nanoscale vessels with the high precision alignment of single NV centers in the vicinity of the sample solution.…”

Section: Resultsmentioning

confidence: 99%

Lithographically engineered shallow nitrogen-vacancy centers in diamond for external nuclear spin sensing

et al. 2018

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The simultaneous control of the number and position of negatively charged nitrogen-vacancy (NV) centers in diamond was achieved. While single near-surface NV centers are known to exhibit outstanding capabilities in external spin sensing, trade-off relationships among the accuracy of the number and position, and the coherence of NV centers have made the use of such engineered NV centers difficult. Namely, low-energy nitrogen implantation with lithographic techniques enables the nanoscale position control but results in degradation of the creation yield and the coherence property. In this paper, we show that low-energy nitrogen ion implantation to a 12 C(99.95%)-enriched homoepitaxial diamond layer using nanomask is applicable to create shallow NV centers with a sufficiently long coherence time for external spin sensing, at a high creation yield. Furthermore, the NV centers were arranged in a regular array so that 40% lattice sites contain single NV centers. The XY8-k measurements using the individual NV centers reveal that the created NV centers have depths from 2 to 12nm, which is comparable to the stopping range of nitrogen ions implanted at 2.5keV. We show that the position-controlled NV centers are capable of external spin sensing with a ultra-high spatial resolution.

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“…Spin qubits associated with color centers in diamond lie somewhere at the middle of these two extremes, rendering these qubits compelling systems for various applications including quantum memory construction, nuclear spin addressing, and nanoscale sensing of magnetism, proteins, and chemicals . These remarkable achievements, in turn, justify the advantages of diamond as host material for spin qubits: the wide bandgap of diamond allows the formation of deep impurity levels by the defects, and the well separation from the band edges effectively reduces the number of channels for spin decay.…”

Section: Introductionmentioning

confidence: 99%

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

2019

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One ultimate goal of quantum information processing is to construct a quantum network for direct sharing of quantum information between distant parties based on stationary qubits for information storage and flying qubits for information transmission. This requires long‐lived quantum memories, efficient light–matter interface, and deterministic quantum gate operations. Among matter qubits, the electron spin of nitrogen vacancy center in diamond is an appealing option for its long coherence time at room temperature, deterministic microwave control, and optical preparation and readout of the qubit. However, its poor optical properties, including weak zero‐phonon‐line emission and large spectral diffusion, limit its potential for large‐scale deployment in quantum nodes. This has motivated the investigation for alternative quantum emitters that combine long‐time memory and coherent optical properties together. The emerging group‐IV split‐vacancy color centers in diamond, such as silicon‐vacancy, germanium‐vacancy, tin‐vacancy, and lead‐vacancy centers, are promising candidates of this ongoing exploration. These quantum emitters simultaneously possess microsecond spin coherence time and optically bright transitions with narrow linewidths. This review reports recent efforts on extending the spin coherence time of these color centers via temperature, strain, and charge control, which paves the road towards constructing solid‐based matter–photon interface for quantum network applications.

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Nanoscale nuclear magnetic resonance with chemical resolution

Cited by 311 publications

References 51 publications

Spin‐Noise‐Detected Two‐Dimensional Nuclear Magnetic Resonance at Triple Sensitivity

Spin‐Noise‐Detected Two‐Dimensional Nuclear Magnetic Resonance at Triple Sensitivity

Lithographically engineered shallow nitrogen-vacancy centers in diamond for external nuclear spin sensing

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

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