EHPRG

Welcome to the official website of the European High Pressure Research Group (EHPRG).

EHPRG is non-profitable academic association established in 1963 which is devoted to science and technology of matter under high pressure. It organizes an annual meeting which brings together hundreds of scientists of various fields, mainly physics, chemistry, Earth and planetary sciences, bio- and food science and technology.

The reasonable size of the group, low conference fees, and a friendly relationship between the attendants have made EHPRG meetings a major event in the European high-pressure community for more than half a century.

Selection of high-pressure related titles from top scientific journals.

Partners in catalysis
by Xiao-Bing Lu


Nature Chemistry, Published online: 27 March 2020; doi:10.1038/s41557-020-0447-y

A heterodinuclear MgCo catalyst has been shown to be highly active for the copolymerization of CO2 and epoxides under low (atmospheric) CO2 pressures. Its performance arises from the intramolecular synergy between the two metals, which adopt distinct roles and mediate each other’s reactivity during catalysis.
27 Mar 2020 at 12:00am
Understanding metal synergy in heterodinuclear catalysts for the copolymerization of CO2 and epoxides
by Arron C. Deacy


Nature Chemistry, Published online: 27 March 2020; doi:10.1038/s41557-020-0450-3

The copolymerization of CO2 with epoxides is an attractive approach for valorizing waste products and improving sustainability in polymer manufacturing. Now, a heterodinuclear Mg(ii)Co(ii) complex has been shown to act as a highly active and selective catalyst for this reaction at low CO2 pressure. The synergy between the two metals was investigated using polymerization kinetics.
27 Mar 2020 at 12:00am
Anomalous hydrogen dynamics of the ice VII-VIII transition revealed by high-pressure neutron diffraction [Chemistry]
by Kazuki Komatsu, Stefan Klotz, Shinichi Machida, Asami Sano-Furukawa, Takanori Hattori, Hiroyuki Kagi
Above 2 GPa the phase diagram of water simplifies considerably and exhibits only two solid phases up to 60 GPa, ice VII and ice VIII. The two phases are related to each other by hydrogen ordering, with the oxygen sublattice being essentially the same. Here we present neutron diffraction data...
24 Mar 2020 at 6:36pm
Real-Time Observation of Stacking Faults in Gold Shock Compressed to 150 GPa
by Surinder M. Sharma, Stefan J. Turneaure, J. M. Winey, P. A. Rigg, N. Sinclair, Xiaoming Wang, Y. Toyoda, and Y. M. Gupta
Author(s): Surinder M. Sharma, Stefan J. Turneaure, J. M. Winey, P. A. Rigg, N. Sinclair, Xiaoming Wang, Y. Toyoda, and Y. M. Gupta


A new experimental approach reveals, for the first time, the formation of microstructural defects in gold when shock compressed to high pressure, a critical insight to understanding shocked states of materials.


[Phys. Rev. X 10, 011010] Published Wed Jan 15, 2020
15 Jan 2020 at 11:00am
Solids, liquids, and gases under high pressure
by Ho-Kwang Mao, Xiao-Jia Chen, Yang Ding, Bing Li, and Lin Wang
Author(s): Ho-Kwang Mao, Xiao-Jia Chen, Yang Ding, Bing Li, and Lin Wang


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. This review on high pressure science highlights subjects ranging from quantum criticality to Earth science. State-of-the-art experimental methods at megabar pressures are also discussed. The proliferation of pressure-induced phases illustrate promising new directions for this field of research.


[Rev. Mod. Phys. 90, 015007] Published Tue Mar 20, 2018
20 Mar 2018 at 11:00am
Colloquium: High pressure and road to room temperature superconductivity
by Lev P. Gor’kov and Vladimir Z. Kresin
Author(s): Lev P. Gor’kov and Vladimir Z. Kresin


Even after three decades of development, high-temperature superconductivity remains one of the most challenging theoretical and experimental areas in condensed matter physics. In this Colloquium some new discoveries in this area are reviewed and possible routes toward much higher transition temperatures are analyzed.


[Rev. Mod. Phys. 90, 011001] Published Tue Jan 09, 2018
9 Jan 2018 at 11:00am
Antiferromagnetic metallic state as proved by magnetotransport in epitaxially stabilized perovskite ${\mathrm{PbRuO}}_{3}$
by T. C. Fujita, L. F. Zhang, and M. Kawasaki
Author(s): T. C. Fujita, L. F. Zhang, and M. Kawasaki


Perovskite ${\mathrm{PbRuO}}_{3}$, which has been synthesized only in bulk polycrystalline form under high pressure, is an orthorhombic Pbnm at room temperature, exhibiting structural phase transition to Imma at around 90 K. This structural transition is accompanied with an orbital ordering and anti...


[Phys. Rev. Materials 4, 031401(R)] Published Mon Mar 23, 2020
23 Mar 2020 at 11:00am
Probing intraband excitations in ${\mathrm{ZrTe}}_{5}$: A high-pressure infrared and transport study
by D. Santos-Cottin, M. Padlewski, E. Martino, S. Ben David, F. Le Mardelé, F. Capitani, F. Borondics, M. D. Bachmann, C. Putzke, P. J. W. Moll, R. D. Zhong, G. D. Gu, H. Berger, M. Orlita, C. C. Homes, Z. Rukelj, and Ana Akrap
Author(s): D. Santos-Cottin, M. Padlewski, E. Martino, S. Ben David, F. Le Mardelé, F. Capitani, F. Borondics, M. D. Bachmann, C. Putzke, P. J. W. Moll, R. D. Zhong, G. D. Gu, H. Berger, M. Orlita, C. C. Homes, Z. Rukelj, and Ana Akrap


Zirconium pentatetelluride, ${\mathrm{ZrTe}}_{5}$, shows remarkable sensitivity to hydrostatic pressure. In this work we address the high-pressure transport and optical properties of this compound, on samples grown by flux and chemical vapor transport. The high-pressure resistivity is measured up to...


[Phys. Rev. B 101, 125205] Published Fri Mar 20, 2020
20 Mar 2020 at 11:00am
Hall-coefficient diagnostics of the surface state in pressurized $\mathrm{Sm}{\mathrm{B}}_{6}$
by Yazhou Zhou, Priscila F. S. Rosa, Jing Guo, Shu Cai, Rong Yu, Sheng Jiang, Ke Yang, Aiguo Li, Qimiao Si, Qi Wu, Zachary Fisk, and Liling Sun
Author(s): Yazhou Zhou, Priscila F. S. Rosa, Jing Guo, Shu Cai, Rong Yu, Sheng Jiang, Ke Yang, Aiguo Li, Qimiao Si, Qi Wu, Zachary Fisk, and Liling Sun


In this study, we report results of the high-pressure Hall coefficient $({R}_{H})$ measurements in the putative topological Kondo insulator $\mathrm{Sm}{\mathrm{B}}_{6}$ up to 37 GPa. Below 10 GPa, our data reveal that ${R}_{H}(T)$ exhibits a prominent peak upon cooling below 20 K. Remarkably, the t...


[Phys. Rev. B 101, 125116] Published Thu Mar 19, 2020
19 Mar 2020 at 11:00am
Nonadiabatic effects and excitonlike states during the insulator-to-metal transition in warm dense hydrogen
by Ilya D. Fedorov, Nikita D. Orekhov, and Vladimir V. Stegailov
Author(s): Ilya D. Fedorov, Nikita D. Orekhov, and Vladimir V. Stegailov


The transition of molecular hydrogen to atomic ionized state with the increase of temperature and pressure poses still unresolved problems for experimental methods and theory. Here we analyze the dynamics of this transition and show its nonequilibrium nonadiabatic character overlooked in both interp...


[Phys. Rev. B 101, 100101(R)] Published Wed Mar 18, 2020
18 Mar 2020 at 11:00am
High pressure generation in the Kawai-type multianvil apparatus equipped with sintered diamond anvils
by D. Yamazaki
Volume 40, Issue 1, March 2020, Page 3-11
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15 Nov 2019 at 5:19am
Data-driven exploration for pressure-induced superconductors using diamond anvil cell with boron-doped diamond electrodes and undoped diamond insulating layer
by Ryo Matsumoto
Volume 40, Issue 1, March 2020, Page 22-34
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3 Dec 2019 at 2:04am
High pressure atomic structure of Zr–Cu metallic glass via EXAFS spectroscopy and molecular dynamics simulations
by P. Dziegielewski
Volume 40, Issue 1, March 2020, Page 54-64
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27 Nov 2019 at 11:46am
Recent progress in high pressure X-ray absorption spectroscopy studies at the ODE beamline
by Lucie Nataf
Volume 40, Issue 1, March 2020, Page 82-87
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14 Jan 2020 at 5:33am
Synthesis of nano-polycrystalline diamond from glassy carbon at pressures up to 25 GPa
by Tetsuo Irifune
Volume 40, Issue 1, March 2020, Page 96-106
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23 Dec 2019 at 9:02am
Exploiting optical properties of nanopolycrystalline diamond in high pressure experiments
by J. Antonio Barreda-Argüeso
Volume 40, Issue 1, March 2020, Page 107-118
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18 Dec 2019 at 7:57am
An application of NPD to double-stage diamond anvil cells: XAS spectra of rhenium metal under high pressures above 300 GPa
by K. Kuramochi
Volume 40, Issue 1, March 2020, Page 119-129
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18 Dec 2019 at 6:03am
Review: high pressure generation techniques beyond the limit of conventional diamond anvils
by Takehiko Yagi
Volume 40, Issue 1, March 2020, Page 148-161
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26 Dec 2019 at 11:21am
Opposed type double stage cell for Mbar pressure experiment with large sample volume
by Yoshio Kono
Volume 40, Issue 1, March 2020, Page 175-183
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9 Jan 2020 at 7:33am
Pressure stability of the first hydration shell of yttrium in aqueous YCl3 solution
by M. Elbers
Volume 40, Issue 1, March 2020, Page 194-204
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12 Feb 2020 at 6:14am
Phase relations in the Fe-P system at high pressures and temperatures from ab initio computations
by Nursultan E. Sagatov
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17 Mar 2020 at 5:28am
Changes of microflora in high pressure treated Indian white prawn (Fenneropenaeus indicus)
by J. Ginson
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7 Jan 2020 at 7:50am
Pressure effect on the electromotive force of the type R thermocouple
by Yu Nishihara
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23 Dec 2019 at 12:29pm