The Extreme Conditions Beamline P02.2 and the Extreme Conditions Science Infrastructure at PETRA III

Liermann, Hanns‐Peter; Konôpková, Zuzana; Morgenroth, Wolfgang; Glazyrin, Konstantin; Bednarčı́k, J.; McBride, E. E.; Petitgirard, Sylvain; Delitz, Jan Torben; Wendt, M.; Bican, Yilmaz; Ehnes, A.; Schwark, I.; Rothkirch, André; Tischer, M.; Heuer, J.; Schulte‐Schrepping, H.; Kracht, T.; Franz, H.

doi:10.1107/s1600577515005937

Cited by 172 publications

(148 citation statements)

References 54 publications

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“…The laser power of the system was kept below 3 mW to prevent back transformation of the HI sample to I 2 and H 2 and laser exposure minimized to 0.2 s. We have found that above 1-2 GPa, photodissociation of I 2 is not possible with 200 mW of 532 nm laser light. X-ray diffraction data were collected at beam lines BL10XU, SPring-8, Japan and P02.2 ECB, PETRA, Germany [22,23]. Angle-dispersive x-ray diffraction patterns were recorded on PerkinElmer XRD1621 and Marr345 image-plate detectors with microfocused synchrotron radiation sources with energies in the range 30-43 keV.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and stability of hydrogen iodide at high pressures

et al. 2017

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Through high-pressure Raman spectroscopy and x-ray diffraction experiments, we have investigated the formation, stability field, and structure of hydrogen iodide (HI). Hydrogen iodide is synthesized by the reaction of molecular hydrogen and iodine at room temperature and at a pressure of 0.2 GPa. Upon compression, HI solidifies into cubic phase I, and we present evidence for the emergence of a phase I above 3.8 GPa. Across the wide temperature regime presented here, HI is unstable under compression (11 GPa at 300 K, 18 GPa at 77 K), decomposing into its constituent elements, after which no further reaction between hydrogen and iodine was observed up to pressures of 60 GPa. This study provides both the constraints on the phase diagram of HI and its kinetic stability.

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Section: Methodsmentioning

confidence: 99%

Synthesis and stability of hydrogen iodide at high pressures

et al. 2017

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“…Single crystals of β-B in a DAC were studied on ID27 at the European Synchrotron Radiation Facility (ESRF) and on P02.2 at PETRA III, DESY [27].…”

Section: Methodsmentioning

confidence: 99%

Nonicosahedral boron allotrope synthesized at high pressure and high temperature

et al. 2017

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Theoretical predictions of pressure-induced phase transformations often become longstanding enigmas because of limitations of contemporary available experimental possibilities.Hitherto the existence of a non-icosahedral boron allotrope has been one of them. Here we report on the first non-icosahedral boron allotrope, which we denoted as ζ-B, with the orthorhombic α-Ga-type structure (space group Cmce) synthesized in a diamond anvil cell at extreme highpressure high-temperature conditions (115 GPa and 2100 K). The structure of ζ-B was solved using single-crystal synchrotron X-ray diffraction and its compressional behavior was studied in the range of very high pressures (115 GPa to 135 GPa). Experimental validation of theoretical predictions reveals the degree of our up-to-date comprehension of condensed matter and promotes further development of solid state physics and chemistry.

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“…The ruby luminescence method was used for measuring pressure. 24 Angle-resolved high-pressure powder XRD measurements were performed at the Extreme Conditions Beamline P02.2 of PETRA III (Hamburg, Germany) 25 with an incident X-ray wavelength k ¼ 0.289 Å and a beam size of 2 lm Â 2 lm. Two-dimensional XRD patterns were collected with a fast flat panel detector XRD1621 from PerkinElmer (2048 pixels Â 2048 pixels, 200 Â 200 lm 2 pixel size) and processed with the FIT2D software.…”

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confidence: 99%

Structural transitions of ordered kesterite-type Cu2ZnSnS4 under pressure

Efthimiopoulos

Ritscher

Lerch

et al. 2017

Applied Physics Letters

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We have investigated the high-pressure structural and vibrational behavior of the ordered kesterite-type Cu 2 ZnSnS 4 compound. Our investigations have revealed two structural transitions: a kesterite-to-disordered kesterite transition was observed between 7 and 9 GPa, which involves a Zn/Cu disorder within the respective cationic sublattice, whereas a rocksalt-type structure was realized at $15 GPa. The latter transition is accompanied by a cationic coordination increase from fourfold-to-sixfold with respect to the sulfur anions. The predicted kesterite-to-stannite transition was not detected. Furthermore, our high-pressure Raman studies have shown that the aforementioned Zn/Cu cationic disorder will always be present in Cu 2 ZnSnS 4 under relatively moderate compression. Published by AIP Publishing. [http://dx

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The Extreme Conditions Beamline P02.2 and the Extreme Conditions Science Infrastructure at PETRA III

Cited by 172 publications

References 54 publications

Synthesis and stability of hydrogen iodide at high pressures

Synthesis and stability of hydrogen iodide at high pressures

Nonicosahedral boron allotrope synthesized at high pressure and high temperature

Structural transitions of ordered kesterite-type Cu2ZnSnS4 under pressure

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