Quantifying strain birefringence halos around inclusions in diamond

Howell, D.; Wood, Ian G.; Dobson, David P.; Jones, Adrian P.; Nasdala, Lutz; Harris, Jeffrey W.

doi:10.1007/s00410-010-0503-5

Cited by 48 publications

(41 citation statements)

References 36 publications

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“…Therefore, the latent strain measurements recorded in Raman spectra of Almahata Sitta diamond are reasonable and are in general agreement with the higher values recorded in damage done to silicate phases. Howell et al. (2010) have verified calculations of remnant stress in diamond from Raman peak shift data against those from optical birefringence, thereby lending credence to our attempts to quantify shock pressures from our Raman spectra.…”

Section: Diamond Resultssupporting

confidence: 65%

MicroRaman spectroscopy of diamond and graphite in Almahata Sitta and comparison with other ureilites

Ross

Steele

Fries

et al. 2011

Meteorit & Planetary Scien

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Abstract-This work is the first detailed study of carbon phases in the ureilite Almahata Sitta (sample #7). We present microRaman data for diamond and graphite in Almahata Sitta, seven unbrecciated ureilites, and two brecciated ureilites. Diamond in Almahata Sitta was found to be distinct from that in unbrecciated and brecciated ureilites, although diamond in unbrecciated and brecciated ureilites is indistinguishable. Almahata Sitta diamond shows a peak center range of 1318.5-1330.2 cm )1 and a full width at half maximum (FWHM) range of 6.6-17.4 cm )1 , representing a shock pressure of at least 60 kbar. The actual peak shock pressure may be higher than this due to postshock annealing, if shock synthesis is the source of ureilite diamonds. Diamond in unbrecciated and brecciated ureilites have peak center wave numbers closer to terrestrial kimberlite diamond, but show a wider range of FWHM than Almahata Sitta. The larger peak shift observed in Almahata Sitta may indicate the presence of lonsdaleite. Alternatively, the lower values in brecciated ureilites may be evidence of an annealing step either following the initial diamond-generating shock or as a consequence of heating during reconsolidation of the breccia. Graphite in Almahata Sitta shows a G-band peak center range of 1569.1-1577.1 cm )1 and a G-band FWHM range of 24.3-41.6 cm )1 representing a formation temperature of 990 ± 120°C. Amorphous carbon was also found. We examine the different theories for diamond formation in ureilites, such as chemical vapor deposition and shock origin from graphite, and explore explanations for the differences between Almahata Sitta and other ureilites.

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Section: Diamond Resultssupporting

confidence: 65%

MicroRaman spectroscopy of diamond and graphite in Almahata Sitta and comparison with other ureilites

Ross

Steele

Fries

et al. 2011

Meteorit & Planetary Scien

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“…(11b)) has been used in the calculation. The P r can be obtained by using three different techniques: (1) microRaman spectroscopy (Nasdala et al, 2003); (2) strain birefringence analysis (Howell et al, 2010), and (3) single-crystal X-ray diffraction (Nestola et al, 2012). The formation P of the diamond host can then be determined, as long as its formation T independently estimated from some geothermometer or assumed from some typical geotherm (Barron, 2005;Xiong et al, 2016).…”

Section: Figurementioning

confidence: 99%

Compressional behavior of MgCr2O4 spinel from first-principles simulation

Zhang

Liu

Xiong

et al. 2016

Sci. China Earth Sci.

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The compressional behavior of the MgCr 2 O 4 spinel has been investigated with the CASTEP code using density functional theory and planewave pseudopotential technique. We treated the exchange-correlation interaction by both the local density approximation (LDA) and generalized gradient approximation (GGA) with the Perdew-Burker-Ernzerhof functional. Our simulation was conducted for the pressure range of 0-19 GPa. We obtained the isothermal bulk modulus (K T ) of the MgCr 2 O 4 spinel as 181.46(48) GPa (GGA; low boundary) or 216.1(11) GPa (LDA; high boundary), with its first derivative (K' T ) as 4.41(6) or 4.5(1), respectively. The oxygen parameter u is not constant but negatively correlated with P, and decreases by about 0.5-0.6% for the investigated P range. The component polyhedra have different compressibilities, increasing in the order of (O 4 ) 1

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“…The magnitude of transverse strain splitting is on the order of 1 GHz/MPa [35], with typical samples having strains in the ∼10-100's of MPa range [36]. As we can see, NV centers can be expected to exhibit a wide distribution of transition frequencies that vary by far more than the linewidth of any single center, with a lifetime limit of 13 MHz and a typical broadened linewidth below 1 GHz.…”

Section: Strain Dependence Of the Nv Structurementioning

confidence: 92%

Super-Resolution Localization and Readout of Individual Solid State Qubits

Bersin

Walsh

Mouradian

et al. 2018

Conference on Lasers and Electro-Optics

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A central goal in quantum information science is to establish entanglement across multiple quantum memories in a manner that allows individual control and readout of each constituent qubit. In the area of solid state quantum optics, a leading system is the negatively charged nitrogen vacancy center in diamond, which allows access to a spin center that can be entangled to multiple nuclear spins. Scaling these systems will require the entanglement of multiple NV centers, together with their nuclear spins, in a manner that allows for individual control and readout. Here we demonstrate a technique that allows us to prepare and measure individual centers within an ensemble, well below the diffraction limit. The technique relies on optical addressing of spin-dependent transitions, and makes use of the built-in inhomogeneous distribution of emitters resulting from strain splitting to measure individual spins in a manner that is non-destructive to the quantum state of other nearby centers. We demonstrate the ability to resolve individual NV centers with subnanometer spatial resolution. Furthermore, we demonstrate crosstalk-free individual readout of spin populations within a diffraction limited spot by performing resonant readout of one NV during a spectroscopic sequence of another. This method opens the door to multi-qubit coupled spin systems in solids, with individual spin manipulation and readout.

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Quantifying strain birefringence halos around inclusions in diamond

Cited by 48 publications

References 36 publications

MicroRaman spectroscopy of diamond and graphite in Almahata Sitta and comparison with other ureilites

MicroRaman spectroscopy of diamond and graphite in Almahata Sitta and comparison with other ureilites

Compressional behavior of MgCr2O4 spinel from first-principles simulation

Super-Resolution Localization and Readout of Individual Solid State Qubits

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