Multichannel collimator for structural investigation of liquids and amorphous materials at high pressures and temperatures

Mézouar, M.; Faure, P.; Crichton, Wilson A.; Rambert, N.; Sitaud, B.; Bauchau, S.; Blattmann, G.

doi:10.1063/1.1505104

Cited by 87 publications

(54 citation statements)

References 11 publications

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“…Even today, EDXRD is still an effective technique for studying weakly scattering samples, such as amorphous and low-Z materials [158,159]. Alternatively, a soller slit may be employed for background discrimination when the angular dispersive x-ray diffraction technique (ADXRD) with a two-dimensional area detector is used [160]. In IXS measurements, however, the collimation requirement is in conflict with the need of large solid angles for collecting weakly scattered signals.…”

Section: Separating Sample Signals From Backgroundmentioning

confidence: 99%

“…This is a particularly useful technique for liquids with low scattering power (e.g., oxides and silicates). With the use of a soller slit system, diffraction from surrounding materials can be effectively minimized and ADXRD has been successfully applied to the study of liquid structures, utilizing the Paris-Edinburgh (PE) presses [160].…”

Section: Hp Amorphous Xrdmentioning

confidence: 99%

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High-pressure studies with x-rays using diamond anvil cells

2016

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Pressure profoundly alters all states of matter. The symbiotic development of ultrahighpressure diamond anvil cells, to compress samples to sustainable multi-megabar pressures; and synchrotron x-ray techniques, to probe materials' properties in situ, has enabled the exploration of rich high-pressure (HP) science. In this article, we first introduce the essential concept of diamond anvil cell technology, together with recent developments and its integration with other extreme environments. We then provide an overview of the latest developments in HP synchrotron techniques, their applications, and current problems, followed by a discussion of HP scientific studies using x-rays in the key multidisciplinary fields. These HP studies include: HP x-ray emission spectroscopy, which provides information on the filled electronic states of HP samples; HP x-ray Raman spectroscopy, which probes the HP chemical bonding changes of light elements; HP electronic inelastic x-ray scattering spectroscopy, which accesses high energy electronic phenomena, including electronic band structure, Fermi surface, excitons, plasmons, and their dispersions; HP resonant inelastic x-ray scattering spectroscopy, which probes shallow core excitations, multiplet structures, and spin-resolved electronic structure; HP nuclear resonant x-ray spectroscopy, which provides phonon densities of state and time-resolved Mössbauer information; HP x-ray imaging, which provides information on hierarchical structures, dynamic processes, and internal strains; HP x-ray diffraction, which determines the fundamental structures and densities of single-crystal, polycrystalline, nanocrystalline, and non-crystalline materials; and HP radial x-ray diffraction, which yields deviatoric, elastic and rheological information. Integrating these tools with hydrostatic or uniaxial pressure media, laser and resistive heating, and cryogenic cooling, has enabled investigations of the structural, vibrational, electronic, and magnetic properties of materials over a wide range of pressure-temperature conditions.

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Section: Separating Sample Signals From Backgroundmentioning

confidence: 99%

Section: Hp Amorphous Xrdmentioning

confidence: 99%

High-pressure studies with x-rays using diamond anvil cells

2016

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“…Structure and physical properties of liquids have been much less studied than those of crystalline materials due to experimental difficulties. Some efforts have been made to investigate structure of liquids [e.g., Tsuji et al, 1989;Mezouar et al, 2002;Shen et al, 2004;Yamada et al, 2011], physical properties such as density [e.g., Katayama et al, 1998;Shen et al, 2002;Ohtani et al, 2005], viscosity [e.g., Kushiro et al, 1976;Kanzaki et al, 1987;Dobson et al, 2000;Terasaki et al, 2001;Perrillat et al, 2010], and elastic wave velocity [e.g., Krisch et al, 2002;Decremps et al, 2009;Nishida et al, 2013]. However, these results were often based on individual techniques, and the discussions were made by comparisons with results obtained by other researchers using in different apparatus using different techniques.…”

Section: Introductionmentioning

confidence: 99%

Toward comprehensive studies of liquids at high pressures and high temperatures: Combined structure, elastic wave velocity, and viscosity measurements in the Paris–Edinburgh cell

Kono

Park

Kenney‐Benson

et al. 2014

Physics of the Earth and Planetary Interiors

102

144

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“…[7][8][9] In recent years, high-energy DAC XRD has been extended to liquids and amorphous solids at high pressure. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] In a typical ambient pressure XRD experiment on liquids or amorphous solids, millimeter size samples are either freestanding or contained within thin walled capillaries. The sample volume and signal are considerably larger than that of the container.…”

Section: Introductionmentioning

confidence: 99%

A perforated diamond anvil cell for high-energy x-ray diffraction of liquids and amorphous solids at high pressure

Soignard

Benmore

Yarger

2010

Review of Scientific Instruments

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Diamond anvil cells (DACs) are widely used for the study of materials at high pressure. The typical diamonds used are between 1 and 3 mm thick, while the sample contained within the opposing diamonds is often just a few microns in thickness. Hence, any absorbance or scattering from diamond can cause a significant background or interference when probing a sample in a DAC. By perforating the diamond to within 50-100 microm of the sample, the amount of diamond and the resulting background or interference can be dramatically reduced. The DAC presented in this article is designed to study amorphous materials at high pressure using high-energy x-ray scattering (>60 keV) using laser-perforated diamonds. A small diameter perforation maintains structural integrity and has allowed us to reach pressures >50 GPa, while dramatically decreasing the intensity of the x-ray diffraction background (primarily Compton scattering) when compared to studies using solid diamonds. This cell design allows us for the first time measurement of x-ray scattering from light (low Z) amorphous materials. Here, we present data for two examples using the described DAC with one and two perforated diamond geometries for the high-pressure structural studies of SiO(2) glass and B(2)O(3) glass.

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Multichannel collimator for structural investigation of liquids and amorphous materials at high pressures and temperatures

Cited by 87 publications

References 11 publications

High-pressure studies with x-rays using diamond anvil cells

High-pressure studies with x-rays using diamond anvil cells

Toward comprehensive studies of liquids at high pressures and high temperatures: Combined structure, elastic wave velocity, and viscosity measurements in the Paris–Edinburgh cell

A perforated diamond anvil cell for high-energy x-ray diffraction of liquids and amorphous solids at high pressure

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