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.

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Reemergence of a Polar Instability at High Pressure in ${\mathrm{KNbO}}_{3}$
by Mohamad Baker Shoker, Sitaram Ramakrishnan, Boris Croes, Olivier Cregut, Nicolas Beyer, Kokou D. Dorkenoo, Pierre Rodière, Björn Wehinger, Gaston Garbarino, Mohamed Mezouar, Marine Verseils, Pierre Fertey, Salia Cherifi-Hertel, Pierre Bouvier, and Mael Guennou
Author(s): Mohamad Baker Shoker, Sitaram Ramakrishnan, Boris Croes, Olivier Cregut, Nicolas Beyer, Kokou D. Dorkenoo, Pierre Rodière, Björn Wehinger, Gaston Garbarino, Mohamed Mezouar, Marine Verseils, Pierre Fertey, Salia Cherifi-Hertel, Pierre Bouvier, and Mael Guennou


Ferroelectric instabilities in perovskites are known to be suppressed by a moderate hydrostatic pressure. The prediction of their re-entrance in a much higher pressure regime is well accepted theoretically, but a conclusive experimental confirmation is still missing. Here, we show its occurrence in …


[Phys. Rev. Lett. 136, 056101] Published Mon Feb 02, 2026
2 Feb 2026 at 11:00am
Colloquium: Room temperature superconductivity: The roles of theory and materials design
by Warren E. Pickett
Author(s): Warren E. Pickett


Superconductivity, discovered in 1911 and first theoretically understood in 1957, remains a fascinating phenomenon for reasons both fundamental and applied. Reliably calculating the critical temperature of a given material, and even more so predicting it, turned out to be a considerable challenge. This Colloquium explains how theoretical developments have led to increasingly reliable predictions that have culminated in the discovery of the hydride materials that display superconductivity under high pressure at temperatures just shy of room temperature.


[Rev. Mod. Phys. 95, 021001] Published Fri Apr 07, 2023
7 Apr 2023 at 12:00pm
Polar-nonpolar phase competition of ferroelectric materials under coupled shock pressure and self-generated electric field
by Qiu Feng, Zhengwei Xiong, Anwei Sun, Mengqi Liu, Minjiang Dan, Xiaoru Liu, and Zhipeng Gao
Author(s): Qiu Feng, Zhengwei Xiong, Anwei Sun, Mengqi Liu, Minjiang Dan, Xiaoru Liu, and Zhipeng Gao


Ferroelectric materials have attracted significant attention due to their excellent piezoelectric, pyroelectric, and ferroelectric properties. In applications where ferroelectric ceramics are subjected to coupled shock pressure-self-generated electric field environments, their phase structures criti…


[Phys. Rev. Materials 10, 024401] Published Mon Feb 02, 2026
2 Feb 2026 at 11:00am
Machine learning-based interatomic potential development and phase transition analysis of ferroelectric hafnium dioxide
by Yasantha Hetti Kankanamalage, Yufeng Xi, Shuai Zhang, Sobhit Singh, and Niaz Abdolrahim
Author(s): Yasantha Hetti Kankanamalage, Yufeng Xi, Shuai Zhang, Sobhit Singh, and Niaz Abdolrahim


The ferroelectric phase ($Pca{2}_{1}$, which is in orthorhombic symmetry) of hafnium dioxide $({\mathrm{HfO}}_{2})$ has gained much attention due to its potential applications in nanoelectronics and advanced memory devices. However, its complex phase behavior under external stimuli, such as pressure…


[Phys. Rev. Materials 10, 014414] Published Thu Jan 29, 2026
29 Jan 2026 at 11:00am
Solid carbon dioxide under multimegabar pressures: Isentropic magnetic compression and ab initio study of equations of state
by Konstantin D. Litasov, Vadim V. Brazhkin, Victor D. Selemir, Pavel B. Repin, Alexey S. Korshunov, Alexander I. Bykov, Gennady V. Boriskov, Nursultan E. Sagatov, Talgat M. Inerbaev, Nikolay I. Egorov, Yury B. Kudasov, Igor V. Makarov, Dmitry A. Maslov, Valery N. Pavlov, Vadim V. Platonov, Ilya S. Strelkov, Oleg M. Surdin, Roman V. Kozabaranov, Alexander V. Bochkarev, Anton A. Agapov, and Natalia A. Belyaeva
Author(s): Konstantin D. Litasov, Vadim V. Brazhkin, Victor D. Selemir, Pavel B. Repin, Alexey S. Korshunov, Alexander I. Bykov, Gennady V. Boriskov, Nursultan E. Sagatov, Talgat M. Inerbaev, Nikolay I. Egorov, Yury B. Kudasov, Igor V. Makarov, Dmitry A. Maslov, Valery N. Pavlov, Vadim V. Platonov, Ilya S. Strelkov, Oleg M. Surdin, Roman V. Kozabaranov, Alexander V. Bochkarev, Anton A. Agapov, and Natalia A. Belyaeva


Isentropic magnetic compression and ab initio calculations on the compressibility and equation of state (EOS) for solid carbon dioxide were performed up to pressures of 540 GPa and 1.6 TPa, respectively. A method of isentropic compression by pressure of an ultrahigh magnetic field from an explosive …


[Phys. Rev. Materials 9, 123606] Published Wed Dec 31, 2025
31 Dec 2025 at 11:00am
Penta-twinned gold nanoparticles under pressure: A comprehensive study
by Camino Martín-Sánchez, Ana Sánchez-Iglesias, José Antonio Barreda-Argüeso, Jean-Paul Itié, Paul Chauvigne, Luis M. Liz-Marzán, and Fernando Rodríguez
Author(s): Camino Martín-Sánchez, Ana Sánchez-Iglesias, José Antonio Barreda-Argüeso, Jean-Paul Itié, Paul Chauvigne, Luis M. Liz-Marzán, and Fernando Rodríguez


We report on the high-pressure optical and mechanical properties of penta-twinned gold nanoparticles (PT-AuNPs) of different geometries: decahedra, rods, and bipyramids. Our results show that, unlike single-crystal gold nanoparticles (SC-AuNPs), PT-AuNPs preserve both their noncubic crystal structur…


[Phys. Rev. Materials 9, 125204] Published Mon Dec 22, 2025
22 Dec 2025 at 11:00am
Stabilization of metallic, excitonic-insulator, and superionic phases in helium–rare-gas compounds at subterapascal pressures
by Cong Liu, Jordi Boronat, and Claudio Cazorla
Author(s): Cong Liu, Jordi Boronat, and Claudio Cazorla


Helium and rare gases (RG: Ne, Ar, Kr, Xe) are typically considered chemically inert, yet under the extreme pressures of planetary interiors they may form compounds with unexpected properties. Using crystal structure prediction and first-principles calculations, we mapped the phase diagram of binary…


[Phys. Rev. B 113, 054101] Published Mon Feb 02, 2026
2 Feb 2026 at 11:00am
Structural, elastic and thermodynamic characteristics of trigonal-type Zintl phases CaZn2X2 (X = P or As) under hydrostatic pressure: prospects for advanced materials in high pressure and thermoelectric devices
by Missoum Radjai Abdelmadjid Bouhemadou Saber Saad Essaoud Djamel Allali Rabah Khenata Yarub Al-Douri a Laboratory of Physics of Experimental Techniques and Their Applications (LPTEAM), University of Yahia Fares, Medea, Algeriab Laboratory for Developing New Materials and their Characterizations, Department of Physics, Faculty of Science, Ferhat Abbas University – Setif 1, Setif, Algeriac Department of Physics, Faculty of Sciences, University of M'sila, M'sila, Algeriad Laboratory of materials and renewable energy, Faculty of science, University of M'sila, M'sila, Algeriae Physics and Chemistry of Materials Lab, Department of Physics, University of M'sila, M'sila, Algeriaf Laboratoire de Physique Quantique de la Matière et de Modélisation Mathématique (LPQ3M), Université de Mascara, Mascara, Algeriag College of Health and Medical Techniques, Al-Bayan University, Baghdad, Iraqh Nanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, Kuala Lumpur, Malaysiai Department of Mechanical Engineering, Faculty of Engineering, Piri Reis University, Istanbul, Turkey
Volume 45, Issue 4, December 2025, Page 314-332
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31 Oct 2025 at 10:07am
First-principles study of the superconducting transition temperature Tc in compressed barium: structural identification based on the pressure dependence of Tc
by Masaaki Geshi Hiroki Funashima Gayan P. Hettiarachchi a R3Institute for Newly-Emerging Science Design, The University of Osaka, Toyonaka, Japanb Department of Comprehensive Engineering, Kindai University Technical College, Nabari, Japan
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16 Jan 2026 at 4:11am
Pressure-induced Mott transition and signatures of superconductivity in β′-(BEDT-TTF)2RCF2SO3 (R = CF3, SF5)
by T. Kobayashi R. Jogo Y. Uwatoko T. Siegrist J. A. Schlueter H. Taniguchi a Graduate School of Science and Engineering, Saitama University, Saitama, Japanb Research and Development Bureau, Saitama University, Saitama, Japanc Institute for Solid State Physics, University of Tokyo, Chiba, Japand Faculty of Science and Engineering, Tokyo City University, Setagaya, Tokyo, Japane Center for Rare Earths, Critical Minerals, and Industrial Byproducts, National High Magnetic Field Laboratory, Tallahassee, Florida, USAf Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida, USAg Materials Science Division, Argonne National Laboratory, Argonne, Illinois, USAh Division of Materials Research, National Science Foundation, Alexandria, Virginia, USA
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22 Jan 2026 at 9:06am
High pressure H-type electrochemical cell enabling gas collection: application to CO₂ electrolysis
by Hoshi Ohnaru Yosuke Ishii Shinji Kawasaki Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Nagoya, Japan
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2 Feb 2026 at 1:13pm
Development of an ultrafast pump-probe spectroscopy system and its application to pressure-tuned organic superconductors
by S. Tsuchiya K. Inomata A. Shinozaki H. Taniguchi Y. Toda a Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, Japanb Faculty of Science, Hokkaido University, Sapporo, Hokkaido, Japanc Faculty of Science, Saitama University, Saitama, Japan
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3 Feb 2026 at 3:18am
Pressure-driven evolution of structural, mechanical and thermodynamic properties of Zr2GeN and Zr2GeF: a first-principles investigation
by Sofiane Blilita Kamel Kassali Abdelmadjid Bouhemadou Samira Foudi a Optoelectronic and Components Laboratory, Department of Physics, Faculty of Science, Ferhat Abbas University – Setif 1, Setif, Algeriab Quantum Physics and Dynamic Systems Laboratory, Department of Physics, Faculty of Science, Ferhat Abbas University – Setif 1, Setif, Algeriac Laboratory for Developing New Materials and Their Characterizations, Department of Physics, Faculty of Science, Ferhat Abbas University – Setif 1, Setif, Algeriad Department of Physics, Faculty of Science, Ferhat Abbas University – Setif 1, Setif, Algeria
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30 Dec 2025 at 6:47am
PIPS-2025: an updated practical pressure scale for the large-volume presses
by Yanbin Wang Guoyin Shen Kurt Leinenweber Agnès Dewaele Tomoo Katsura Yu Nishihara Takayuki Ishii Jon Eggert Kamil Dziubek a GeoSoilEnviroCARS, Center to Advanced Radiation Sources, The University of Chicago, Chicago, IL, USAb HPCAT, X-ray Science Division, Argonne National Laboratory, Lemont, IL, USAc FORCE, Arizona State University, Tempe, AZ, USAd CEA, DIF, Arpajon, Francee Laboratoire Matière en Conditions Extrêmes, Université Paris-Saclay, CEA Bruyères-le-Châtel, Francef Bavarian Geo-Institute for Experimental Geochemistry and Geophysics, University of Bayreuth, Bayreuth, Germanyg Geodynamics Research Center, PIAS, Ehime University, Matsuyama, Japanh Institute for Planetary Materials, Okayama University, Misasa, Japani Lawrence Livermore National Laboratory, Livermore, CA, USAj Department of Mineralogy and Crystallography, University of Vienna, Vienna, Austria
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23 Jan 2026 at 2:49am
Consolidating systems for AI with iPaaS
by MIT Technology Review Insights
For decades, enterprises reacted to shifting business pressures with stopgap technology solutions. To rein in rising infrastructure costs, they adopted cloud services that could scale on demand. When customers shifted their lives onto smartphones, companies rolled out mobile apps to keep pace. And when businesses began needing real-time visibility into factories and stockrooms, they layered…
5 Feb 2026 at 4:20pm