Double-sided laser heating system for<i>in situ</i>high pressure–high temperature monochromatic x-ray diffraction at the esrf

Schultz, E. E.; Mézouar, M.; Crichton, Wilson A.; Bauchau, S.; Blattmann, G.; Andrault, Denis; Fiquet, G.; Boehler, R.; Rambert, N.; Sitaud, B.; Loubeyre, P.

doi:10.1080/08957950500076031

Cited by 78 publications

(38 citation statements)

References 24 publications

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“…High temperature at high pressure can be reached by resistive oven or laser heating techniques. Especially, double sided laser heating enables a homogeneous and constant temperature over the illuminated sample area in the DAC (Lin et al, 2005b;Schultz et al, 2005). At the other extreme, low temperature allows one to explore for instance the rich phenomena related to quantum criticality in heavy fermions which we will discuss further in section VII.A.…”

Section: Combined Pressure / Temperaturementioning

confidence: 99%

Inelastic x-ray scattering by electronic excitations under high pressure

Rueff¹,

Shukla²

2010

Rev. Mod. Phys.

173

140

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Investigating electronic structure and excitations under extreme conditions gives access to a rich variety of phenomena. High pressure typically induces behavior such as magnetic collapse and the insulator-metal transition in 3d transition metals compounds, valence fluctuations or Kondo-like characteristics in f -electron systems, and coordination and bonding changes in molecular solids and glasses. This article reviews research concerning electronic excitations in materials under extreme conditions using inelastic x-ray scattering (IXS). IXS is a spectroscopic probe of choice for this study because of its chemical and orbital selectivity and the richness of information it provides. Being an all-photon technique, IXS has a penetration depth compatible with high pressure requirements. Electronic transitions under pressure in 3d transition metals compounds and f -electron systems, most of them strongly correlated, are reviewed. Implications for geophysics are mentioned. Since the incident X-ray energy can easily be tuned to absorption edges, resonant IXS, often employed, is discussed at length. Finally studies involving local structure changes and electronic transitions under pressure in materials containing light elements are briefly reviewed.

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Section: Combined Pressure / Temperaturementioning

confidence: 99%

Inelastic x-ray scattering by electronic excitations under high pressure

Rueff¹,

Shukla²

2010

Rev. Mod. Phys.

173

140

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“…Many synchrotron facilities are equipped with double sided laser heating systems [131,[133][134][135][137][138][139][140]. Portable laser heating systems have recently been developed [121,141,142], expanding the use of the laser heating techniques into specialized beamlines without permanent laser heating systems.…”

Section: Laser Heatingmentioning

confidence: 99%

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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“…The laser heated diamond anvil cell (LHDAC) technique is used, for example, for simulating conditions similar to those in the deep Earth and planetary interiors or for investigating chemical processes and physical phenomena at extreme conditions. At synchrotron light source facilities, the LHDAC technique has been coupled with various experimental setups, such as Xray diffraction, 5,6 Nuclear Inelastic Scattering (NIS), the Synchrotron Mössbauer Source (SMS), 7,8 and X-ray Absorption Near Edge Structure spectroscopy (XANES). 9,10 In addition to continuous-wave (CW) heating, pulsed lasers have been used starting from the first attempts to laser heat samples in a DAC, with the advantage of achieving significantly higher temperatures 11,12 due to the concentration of the high laser power in a short impulse.…”

Section: Introductionmentioning

confidence: 99%

Portable double-sided pulsed laser heating system for time-resolved geoscience and materials science applications

Aprilis

Strohm²,

Kupenko

et al. 2017

Review of Scientific Instruments

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A portable double-sided pulsed laser heating system for diamond anvil cells has been developed that is able to stably produce laser pulses as short as a few microseconds with repetition frequencies up to 100 kHz. In situ temperature determination is possible by collecting and fitting the thermal radiation spectrum for a specific wavelength range (particularly, between 650 nm and 850 nm) to the Planck radiation function. Surface temperature information can also be time-resolved by using a gated detector that is synchronized with the laser pulse modulation and space-resolved with the implementation of a multi-point thermal radiation collection technique. The system can be easily coupled with equipment at synchrotron facilities, particularly for nuclear resonance spectroscopy experiments. Examples of applications include investigations of high-pressure high-temperature behavior of iron oxides, both in house and at the European Synchrotron Radiation Facility using the synchrotron Mössbauer source and nuclear inelastic scattering.

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Double-sided laser heating system forin situhigh pressure–high temperature monochromatic x-ray diffraction at the esrf

Cited by 78 publications

References 24 publications

Inelastic x-ray scattering by electronic excitations under high pressure

Inelastic x-ray scattering by electronic excitations under high pressure

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

Portable double-sided pulsed laser heating system for time-resolved geoscience and materials science applications

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