Journal ArticleDOI
BX90: A new diamond anvil cell design for X-ray diffraction and optical measurements
Innokenty Kantor,Vitali B. Prakapenka,A. Kantor,Przemyslaw Dera,Alexander Kurnosov,Stanislav V. Sinogeikin,Natalia Dubrovinskaia,Leonid Dubrovinsky +7 more
TLDR
Main features of the cell are an ultimate 90-degrees symmetrical axial opening and high stability, making the presented cell design suitable for a whole range of techniques from optical absorption to single-crystal X-ray diffraction studies, also in combination with external resistive or double-side laser heating.Abstract:
We present a new design of a universal diamond anvil cell, suitable for different kinds of experimental studies under high pressures. Main features of the cell are an ultimate 90-degrees symmetrical axial opening and high stability, making the presented cell design suitable for a whole range of techniques from optical absorption to single-crystal X-ray diffraction studies, also in combination with external resistive or double-side laser heating. Three examples of the cell applications are provided: a Brillouin scattering of neon, single-crystal X-ray diffraction of α-Cr(2)O(3), and resistivity measurements on the (Mg(0.60)Fe(0.40))(Si(0.63)Al(0.37))O(3) silicate perovskite.read more
Citations
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Journal ArticleDOI
Solids, liquids, and gases under high pressure
TL;DR: The effect of adding high pressure as a control parameter in solids, liquids, and gases expands opportunities to observe unexpected novel phenomena and understand matter in extreme environments as mentioned in this paper, and a review on high pressure science highlights subjects ranging from quantum criticality to Earth science.
Journal ArticleDOI
Structural complexity of simple Fe2O3 at high pressures and temperatures.
Elena Bykova,Leonid Dubrovinsky,Natalia Dubrovinskaia,Maxim Bykov,Catherine McCammon,Sergey V. Ovsyannikov,Hanns-Peter Liermann,Ilya Kupenko,Ilya Kupenko,Aleksandr I. Chumakov,Rudolf Rüffer,Michael Hanfland,Vitali B. Prakapenka +12 more
TL;DR: Crystal chemical analysis of structures presented here and known Fe(II, III) oxides shows their fundamental relationships and that they can be described by the homologous series nFeO·mFe2O3, suggesting that mixed-valence iron oxides may play a significant role in oxygen cycling between earth reservoirs.
Journal ArticleDOI
Terapascal static pressure generation with ultrahigh yield strength nanodiamond
Natalia Dubrovinskaia,Leonid Dubrovinsky,Natalia Solopova,Artem M. Abakumov,Stuart Turner,Michael Hanfland,Elena Bykova,Maxim Bykov,Clemens Prescher,Vitali B. Prakapenka,Sylvain Petitgirard,Irina Chuvashova,Biliana Gasharova,Yves-Laurent Mathis,P. A. Ershov,Irina Snigireva,Anatoly Snigirev,Anatoly Snigirev +17 more
TL;DR: Using a high-pressure and high-temperature technique, optically transparent microballs of bulk nanocrystalline diamond are synthesized, which were found to have an exceptional yield strength and are promising in the field of x-ray optical applications.
Journal ArticleDOI
High-Pressure Polymeric Nitrogen Allotrope with the Black Phosphorus Structure.
Dominique Laniel,Bjoern Winkler,Timofey Fedotenko,Anna S. Pakhomova,Stella Chariton,Victor Milman,Vitali B. Prakapenka,Leonid Dubrovinsky,Natalia Dubrovinskaia,Natalia Dubrovinskaia +9 more
TL;DR: In this paper, a polymeric nitrogen allotrope with the black phosphorus structure, bp-N, was identified using synchrotron single-crystal x-ray diffraction and further studied by Raman spectroscopy and density functional theory calculations.
Journal ArticleDOI
Brillouin Scattering and its Application in Geosciences
TL;DR: Brillouin spectroscopy is an optical technique that allows one to determine the directional dependence of acoustic velocities in minerals and materials subject to a wide range of environmental conditions.
References
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Journal ArticleDOI
Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions
TL;DR: An improved calibration curve of the pressure shift of the ruby R1 emission line was obtained under quasi-hydrostatic conditions in the diamond-window, high-pressure cell to 800 kbar.
Journal ArticleDOI
Miniature diamond anvil pressure cell for single crystal x‐ray diffraction studies
Leo Merrill,William A. Bassett +1 more
TL;DR: A gasketed diamond anvil high pressure cell has been constructed to perform optical and x-ray diffraction studies on single crystals under hydrostatic pressure as discussed by the authors, which is mounted on a standard goniometer head which may be attached to either a standard precession camera or single crystal orienter taking advantage of counting methods.
Journal ArticleDOI
Toward an internally consistent pressure scale.
TL;DR: In this paper, the authors report compression data of gold (Au), platinum (Pt), the NaCl-B2 phase, and solid neon (Ne) at 300 K and high temperatures up to megabar pressures.
Journal ArticleDOI
New anvil designs in diamond-cells
TL;DR: In this article, a diamond anvil with conical support is introduced, which increases the height to diameter ratio of the pressure cell and prevents bonding between gasket and diamond, which causes ring cracks during pressure release.
Journal ArticleDOI
Laser heated diamond cell system at the Advanced Photon Source for in situ x-ray measurements at high pressure and temperature
TL;DR: In this article, a double-sided laser heating system was used for in situ x-ray measurements at simultaneously ultrahigh pressures (to >150 GPa) and ultrahigh temperatures (to ∼4000 K) at the Advanced Photon Source.