THE SPIN HAMILTONIAN PARAMETERS CALCULATION OF 14N AND 15N IN NATURAL TYPE I DIAMOND

Kedkaew, C.; Limsuwan, Pichet; Thongcham, Kanphot; Meejoo, Siwaporn

doi:10.1142/s0217979208050498

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…The procedure is detailed in the Supporting Information. While these values are lower than the originally reported one of g iso = 2.0024, ,, they are consistent with later reports. ,, …”

Section: Resultssupporting

confidence: 92%

“…While these values are lower than the originally reported one of g iso = 2.0024, 18,40,41 they are consistent with later reports. 28,42,43 Further confirmation of the validity of our interpretation is that we could simulate an EPR spectrum of a second sample of Ib HPHT single crystal diamond, termed diamond B in the rest of the text. The 6.9 T EPR spectrum and the corresponding simulation are shown in Figure 2c.…”

Section: S I S a I I P I S Ssupporting

confidence: 54%

“…While these values are lower than the originally reported one of g iso = 2.0024, 18 , 40 , 41 they are consistent with later reports. 28 , 42 , 43 …”

Section: Resultsmentioning

confidence: 99%

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Nitrogen Substitutions Aggregation and Clustering in Diamonds as Revealed by High-Field Electron Paramagnetic Resonance

Nir-Arad,

Shlomi,

Manukovsky

et al. 2023

J. Am. Chem. Soc.

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Diamonds have been shown to be an excellent platform for quantum computing and quantum sensing applications. These applications are enabled by the presence of defects in the lattice, which are also known as color centers. The most common nitrogen-based defect in synthetic diamonds is the paramagnetic nitrogen substitution (P1) center. While the majority of quantum applications rely on nitrogen-vacancy (NV) centers, the properties of the latter are heavily influenced by the presence and the spatial distribution of the P1 centers. Hence, understanding the spatial distribution and mutual interactions of P1 centers is crucial for the successful development of diamond-based quantum devices. Unlike NV centers, P1 centers do not have a spin-dependent optical signature, and their spin-related properties, therefore, have to be detected and characterized using magnetic resonance methods. We show that using high-field (6.9 and 13.8 T) pulsed electron paramagnetic resonance (EPR) and dynamic nuclear polarization (DNP) experiments, we can distinguish and quantify three distinct populations of P1 centers: isolated P1 centers, weakly interacting ones, and exchange-coupled ones that are clustered together. While such clustering was suggested before, these clusters were never detected directly and unambiguously. Moreover, by using electron−electron double resonance (ELDOR) pump−probe experiments, we demonstrate that the latter clustered population does not exist in isolation but coexists with the more weakly interacting P1 centers throughout the diamond lattice. Its presence thus strongly affects the quantum properties of the diamond. We also show that the existence of this population can explain recent hyperpolarization results in type Ib high-pressure, high-temperature (HPHT) diamonds. We propose a combination of high-field pulsed EPR, ELDOR, and DNP as a tool for probing the aggregation state and interactions among different populations of nitrogen substitution centers.

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“…The procedure is detailed in the Supporting Information. While these values are lower than the originally reported one of g iso = 2.0024, ,, they are consistent with later reports. ,, …”

Section: Resultssupporting

confidence: 92%

Section: S I S a I I P I S Ssupporting

confidence: 54%

See 1 more Smart Citation

Nitrogen Substitutions Aggregation and Clustering in Diamonds as Revealed by High-Field Electron Paramagnetic Resonance

Nir-Arad,

Shlomi,

Manukovsky

et al. 2023

J. Am. Chem. Soc.

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show abstract

“…EPR spectra of a P1-center with axial h.f.s. tensor have been observed previously in diamond crystals [30,31], in polycrystalline diamond films [32,33] and in carbonado [34]. According to [32], the internal stress caused the distortion of axial symmetry of the P1-center in some CVD diamond films.…”

Section: Methodsmentioning

confidence: 68%

Paramagnetic centers in detonation nanodiamonds studied by CW and pulse EPR

Fionov

Lund

Chen

et al. 2010

Chemical Physics Letters

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Dispersed detonation nanodiamonds have been studied by continuous-wave (CW) and pulse EPR techniques. The spectrum of bulk radicals (g = 2.0025 ± 0.0002, a Lorentz line shape with ΔH pp = 0.95 ± 0.05 mT) dominated in CW EPR and prevented to record spectra from other paramagnetic species. The pulse EPR spectrum was the superposition of the distorted P1-center spectrum with parameters (g = 2.0025, A xx = 2.57 mT, A yy = 3.08 mT, A zz = 4.07 mT), the H1-center spectrum (g = 2.0028) and the single line (g = 2.0025, ΔH pp = 0.40 ± 0.05 mT) from other centers which may be assigned to surface radicals. The concentration of P1-centers has been estimated by CW EPR as 2 ± 1 ppm N.

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“…2. In addition, the Nitrogen impurities possess a strong hyperfine coupling, the principal axis of which can take on four possible orientations due to tetrahedral symmetry [34][35][36]. Dynamic Jahn-Teller (JT) reorientation of the Nitrogen impurity's hyperfine principal axis results in two particular considerations: 1) the addressing of additional JT frequencies yielding a denser super-plaquette frequency spectrum and 2) the JT-governed spin-lattice relaxation (SLR) time T N 1 (SI Text).…”

Section: Implementation Operational Errors and Gate Fidelitiesmentioning

confidence: 99%

Scalable architecture for a room temperature solid-state quantum information processor

Yao¹,

Jiang²,

Gorshkov³

et al. 2012

Nat Commun

244

234

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The realization of a scalable quantum information processor has emerged over the past decade as one of the central challenges at the interface of fundamental science and engineering. Here we propose and analyse an architecture for a scalable, solid-state quantum information processor capable of operating at room temperature. Our approach is based on recent experimental advances involving nitrogen-vacancy colour centres in diamond. In particular, we demonstrate that the multiple challenges associated with operation at ambient temperature, individual addressing at the nanoscale, strong qubit coupling, robustness against disorder and low decoherence rates can be simultaneously achieved under realistic, experimentally relevant conditions. The architecture uses a novel approach to quantum information transfer and includes a hierarchy of control at successive length scales. Moreover, it alleviates the stringent constraints currently limiting the realization of scalable quantum processors and will provide fundamental insights into the physics of non-equilibrium many-body quantum systems.

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THE SPIN HAMILTONIAN PARAMETERS CALCULATION OF ¹⁴N AND ¹⁵N IN NATURAL TYPE I DIAMOND

Cited by 3 publications

References 8 publications

Nitrogen Substitutions Aggregation and Clustering in Diamonds as Revealed by High-Field Electron Paramagnetic Resonance

Nitrogen Substitutions Aggregation and Clustering in Diamonds as Revealed by High-Field Electron Paramagnetic Resonance

Paramagnetic centers in detonation nanodiamonds studied by CW and pulse EPR

Scalable architecture for a room temperature solid-state quantum information processor

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