Sidebands in optically detected magnetic resonance signals of nitrogen vacancy centers in diamond

Simanovskaia, Maria; Jensen, Kasper; Jarmola, Andrey; Aulenbacher, K.; Manson, Neil B.; Budker, Dmitry

doi:10.1103/physrevb.87.224106

Cited by 46 publications

(48 citation statements)

References 26 publications

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“…This is indeed the case for NV À centres in diamond (Fig. 1b), as previously suggested by observed dips in the NV À spin-lattice relaxation time (T 1 ) and by sudden reduction in the optical hole depth (hole bleaching) in the zerophonon adsorption, in weak magnetic fields (o5 mT) [17][18][19][20] .…”

supporting

confidence: 65%

“…The measured spectra have chemically informative fine features that differ vastly from ODMR spectra based on the allowed electron spin transitions of the NV À centre alone 21,22 . The majority of the fine features can be assigned to the N S centre 17,18,20,23 (see Supplementary Note 1), from which almost all calculated transitions (blue lines on top of each spectrum) are present in the observed spectra. For instance, the three calculated transition frequencies of the N S centre at B z B0 mT (that is, ambient field), namely, 18.4, 130.2 and 148.6 MHz ( Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

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Optically detected cross-relaxation spectroscopy of electron spins in diamond

et al. 2014

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The application of magnetic resonance spectroscopy at progressively smaller length scales may eventually permit 'chemical imaging' of spins at the surfaces of materials and biological complexes. In particular, the negatively charged nitrogen-vacancy (NV À ) centre in diamond has been exploited as an optical transducer for nanoscale nuclear magnetic resonance. However, the spectra of detected spins are generally broadened by their interaction with proximate paramagnetic NV À centres through coherent and incoherent mechanisms. Here we demonstrate a detection technique that can resolve the spectra of electron spins coupled to NV À centres, in this case, substitutional nitrogen and neutral nitrogen-vacancy centres in diamond, through optically detected cross-relaxation. The hyperfine spectra of these spins are a unique chemical identifier, suggesting the possibility, in combination with recent results in diamonds harbouring shallow NV À implants, that the spectra of spins external to the diamond can be similarly detected.

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confidence: 65%

Section: Resultsmentioning

confidence: 99%

Optically detected cross-relaxation spectroscopy of electron spins in diamond

et al. 2014

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“…Recently, a remarkably sharp dip has been observed around 2870 MHz in the ODMR with zero applied magnetic fields [27,34,40]. Although the ODMR results are usually fit by a sum of Lorentzians, the ODMR results observed in [27,34,40] cannot be well reproduced by such a fitting [27], and no theoretical model can explain the dip until a new approach is suggested in [34].…”

Section: Introductionmentioning

confidence: 99%

“…Although the ODMR results are usually fit by a sum of Lorentzians, the ODMR results observed in [27,34,40] cannot be well reproduced by such a fitting [27], and no theoretical model can explain the dip until a new approach is suggested in [34]. The model described in [34] contains spin-1 properties of the NV − centers while most of the previous models assume the NV − center to be a spin-half system or use just a sum of Lorentzians to include the effect of the spin-1 properties in a phenomenological way [27].…”

Section: Introductionmentioning

confidence: 99%

Optically detected magnetic resonance of high-density ensemble of NV⁻centers in diamond

Matsuzaki

Morishita

Shimo-Oka

et al. 2016

J. Phys.: Condens. Matter

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Optically detected magnetic resonance (ODMR) is a way to characterize the NV − centers. Recently, a remarkably sharp dip was observed in the ODMR with a high-density ensemble of NV centers, and this was reproduced by a theoretical model in [Zhu et al., Nature Communications 5, 3424 (2014)], showing that the dip is a consequence of the spin-1 properties of the NV − centers. Here, we present much more details of analysis to show how this model can be applied to investigate the properties of the NV − centers. By using our model, we have reproduced the ODMR with and without applied magnetic fields. Also, we theoretically investigate how the ODMR is affected by the typical parameters of the ensemble NV − centers such as strain distributions, inhomogeneous magnetic fields, and homogeneous broadening width. Our model could provide a way to estimate these parameters from the ODMR, which would be crucial to realize diamond-based quantum information processing.

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“…All of these solutions are compatible with the experimental data. Since DFT calculations [24,30] indicate that the largest component of the hyperfine tensor, which we write as A zz , points in the direction of the 13 C atom, the solution ζ=109.3…”

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Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

Rao

Suter

2016

Phys. Rev. B

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The Nitrogen-Vacancy (NV) center in diamond has attractive properties for a number of quantum technologies that rely on the spin angular momentum of the electron and the nuclei adjacent to the center. The nucleus with the strongest interaction is the 13 C nuclear spin of the first shell. Using this degree of freedom effectively hinges on precise data on the hyperfine interaction between the electronic and the nuclear spin. Here, we present detailed experimental data on this interaction, together with an analysis that yields all parameters of the hyperfine tensor, as well as its orientation with respect to the atomic structure of the center.PACS numbers: 03.67. Lx, 76.70.Hb, 33.35.+r, 61.72.JNitrogen-Vacancy (NV) centers in diamond have interesting properties for applications in room-temperature metrology, spectroscopy, and Quantum Information Processing (QIP) [1][2][3][4][5][6]. Nuclear spins, coupled by hyperfine interaction to the electron spin of the NV-center, are important for many of these applications [1,3,[6][7][8][9][10][11][12][13]. For example, in QIP applications, the nuclear spins can hold quantum information [12,13], serving as part of a quantum register [1]. Accurate knowledge of the hyperfine interaction is necessary, e.g., for designing precise and fast control sequences for the nuclear spins [14,15]. With a known Hamiltonian, control sequences can be tailored by optimal control techniques to dramatically improve the speed and precision of multi-qubit gates [16][17][18][19].The 13 C nuclear spin of the first coordination shell is a good choice for a qubit due to its large hyperfine coupling to the electronic spin of the NV center, which can be used to implement fast gate operations [3,20,21] or highspeed quantum memories [22]. Full exploitation of this potential requires accurate knowledge of the hyperfine interaction, including the anisotropic (tensor) components. The interaction tensor has been calculated by , but only a limited number of experimental studies of this hyperfine interaction exist to date [27][28][29]. In this work, we present a detailed analysis of this hyperfine interaction. The experiments were carried out on single NV centers of a diamond crystal with a natural abundance of 13 C and a nitrogen concentration of < 5 ppb using a home-built confocal microscope and microwave electronics for excitation [22].The presence of a nuclear spin in the first coordination shell reduces the symmetry of the NV center from C 3V to C S , a single mirror plane. This symmetry plane passes through the NV symmetry axis and the 13 C nuclear spin as illustrated in Fig. 1(a). The NV symmetry axis defines the z-axis of the NV frame of reference, the x-axis lies in the symmetry plane of the center, and the y-axis is perpendicular to both of them. Due to the symmetry of the system, only those elements of the hyperfine tensor that are invariant with respect to the inversion of the y-coordinate can be non-zero. Hence, the hyperfine Hamiltonian in the NV frame of reference can be written as(1) Here, S α an...

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Sidebands in optically detected magnetic resonance signals of nitrogen vacancy centers in diamond

Cited by 46 publications

References 26 publications

Optically detected cross-relaxation spectroscopy of electron spins in diamond

Optically detected cross-relaxation spectroscopy of electron spins in diamond

Optically detected magnetic resonance of high-density ensemble of NV⁻centers in diamond

Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

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Sidebands in optically detected magnetic resonance signals of nitrogen vacancy centers in diamond

Cited by 46 publications

References 26 publications

Optically detected cross-relaxation spectroscopy of electron spins in diamond

Optically detected cross-relaxation spectroscopy of electron spins in diamond

Optically detected magnetic resonance of high-density ensemble of NV−centers in diamond

Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

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Optically detected magnetic resonance of high-density ensemble of NV⁻centers in diamond