A Practical Review of the Laser-Heated Diamond Anvil Cell for University Laboratories and Synchrotron Applications

Anzellini, Simone; Boccato, Silvia

doi:10.3390/cryst10060459

Cited by 65 publications

(35 citation statements)

References 187 publications

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“…Around 1391 K, together with Ca-I, it is possible to observe the presence of a single-crystal like signal from the Ca-II phase. The presence of both Ca phases at this T conditions is linked to the axial thermal gradients (around 800 K) developed between the two sample surfaces and caused by both the nature of the LH-DAC technique 29 and the adopted sample loading. The presence of this thermal gradient is further proved by the different textural behaviour observed in the two phases.…”

Section: Resultsmentioning

confidence: 97%

“…Two 100 W Nd:YAG fibre lasers were individually focused on both sample surfaces. During the experiment, the T of the sample was measured by spectral radiometry (between 450 nm and 950 nm) following the procedure described in Anzellini et al 29 . T were collected from both sides (upstream and downstream) of the sample and the average between those two readings was taken as the actual T value.…”

Section: Methodsmentioning

confidence: 99%

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Melting line of calcium characterized by in situ LH-DAC XRD and first-principles calculations

Anzellini

Pozzo

Errandonea

2021

Sci Rep

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In this work, the melting line of calcium has been characterized both experimentally, using synchrotron X-ray diffraction in laser-heated diamond-anvil cells, and theoretically, using first-principles calculations. In the investigated pressure and temperature range (pressure between 10 and 40 GPa and temperature between 300 and 3000 K) it was possible to observe the face-centred phase of calcium and to confirm (and characterize for the first time at these conditions) the presence of the body-centred cubic and the simple cubic phase of calcium. The melting points obtained with the two techniques are in excellent agreement. Furthermore, the present results agree with the only existing melting line of calcium obtained in laser-heated diamond anvil cells, using the speckle method as melting detection technique. They also confirm a flat slope of the melting line in the pressure range between 10 and 30 GPa. The flat melting curve is associated with the presence of the solid high-temperature body-centered cubic phase of calcium and to a small volume change between this phase and the liquid at melting. Reasons for the stabilization of the body-centered face at high-temperature conditions will be discussed.

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Section: Resultsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Melting line of calcium characterized by in situ LH-DAC XRD and first-principles calculations

Anzellini

Pozzo

Errandonea

2021

Sci Rep

Self Cite

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“…Raman and Brillouin spectroscopy) and at synchrotron radiation facilities (e.g. X-ray diffraction, X-ray emission spectroscopy and nuclear resonant scattering, see [1,2] and references therein). LHDAC have shaped our understanding of structural properties, phase relations and chemical equilibria of Earth's mantle material [3].…”

Section: Introductionmentioning

confidence: 99%

Reflective imaging, on-axis laser heating and radiospectrometry of samples in diamond anvil cells with a parabolic mirror

Spiekermann

Libon

Albers

et al. 2021

High Pressure Research

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We describe the use of a silver-coated 90 • parabolic mirror of 33 mm focal length as objective for imaging, on-axis laser heating and radiospectrometric temperature measurements of a sample compressed in a diamond anvil cell in a laser heating system. There, spatial resolution and imaging quality of the parabolic mirror are similar to the one of a 10× objective. The temperature measurements between 500 and 900 nm are essentially free from chromatic aberration. The parabolic mirror was also perforated with a 220-μm hole, allowing for on-axis imaging, laser heating and incidence of X-rays simultaneously at synchrotron facilities. The parabolic mirror is thus a well-suited alternative to existing refractive and reflective objectives in laboratory and synchrotron laser heating systems.

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“…Although these studies demonstrated the promise of using diamondoids in seeded diamond growth, one of the central challenges in them was the thermal decomposition of the seed at high P-T conditions of experiments. This problem was overcome recently in [ 31 ], where a low-temperature (T = 4000, P = 10 GPa) slow (24 h) synthesis of high-quality nanodiamonds was implemented in a laser-heated diamond anvil cell [ 32 ] using 2-azaadamantane as a seed and some other less thermally stable hydrocarbon molecules for crystal growth. After irradiation with electrons and subsequent annealing, the resulting nanodiamonds revealed the presence of bright NV centers for which high-contrast spectra of optically detectable magnetic resonance (ODMR) were obtained [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Hyperfine Interactions in the NV-13C Quantum Registers in Diamond Grown from the Azaadamantane Seed

Низовцев

Pushkarchuk

Kilin³

et al. 2021

Nanomaterials

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Nanostructured diamonds hosting optically active paramagnetic color centers (NV, SiV, GeV, etc.) and hyperfine-coupled with them quantum memory 13C nuclear spins situated in diamond lattice are currently of great interest to implement emerging quantum technologies (quantum information processing, quantum sensing and metrology). Current methods of creation such as electronic-nuclear spin systems are inherently probabilistic with respect to mutual location of color center electronic spin and 13C nuclear spins. A new bottom-up approach to fabricate such systems is to synthesize first chemically appropriate diamond-like organic molecules containing desired isotopic constituents in definite positions and then use them as a seed for diamond growth to produce macroscopic diamonds, subsequently creating vacancy-related color centers in them. In particular, diamonds incorporating coupled NV-13С spin systems (quantum registers) with specific mutual arrangements of NV and 13C can be obtained from anisotopic azaadamantane molecule. Here we predict the characteristics of hyperfine interactions (hfi) for the NV-13C systems in diamonds grown from various isotopically substituted azaadamantane molecules differing in 13C position in the seed, as well as the orientation of the NV center in the post-obtained diamond. We used the spatial and hfi data simulated earlier for the H-terminated cluster C510[NV]-H252. The data obtained can be used to identify (and correlate with the seed used) the specific NV-13C spin system by measuring, e.g., the hfi-induced splitting of the mS = ±1 sublevels of the NV center in optically detected magnetic resonance (ODMR) spectra being characteristic for various NV-13C systems.

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A Practical Review of the Laser-Heated Diamond Anvil Cell for University Laboratories and Synchrotron Applications

Cited by 65 publications

References 187 publications

Melting line of calcium characterized by in situ LH-DAC XRD and first-principles calculations

Melting line of calcium characterized by in situ LH-DAC XRD and first-principles calculations

Reflective imaging, on-axis laser heating and radiospectrometry of samples in diamond anvil cells with a parabolic mirror

Hyperfine Interactions in the NV-13C Quantum Registers in Diamond Grown from the Azaadamantane Seed

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