EHPRG: The European High Pressure Research Group

Welcome

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.

Upcoming EHPRG Meeting

The 63rd EHPRG Meeting will take place in Montpellier, France, in the period August 23-28, 2026.
The conference will be chaired by Julien Haines and Jérôme Rouquette, ICGM, Université de Montpellier, France.

Immediate past EHPRG Meetings

The 62nd EHPRG Meeting took place in Manchester, UK, at the Lowry, in the period August 31-September 5, 2025.
The conference was chaired by John Proctor, Salford University, UK.
For more information, please visit the official webpage of EHPRG-62.

The 61st EHPRG Meeting has taken place in Thessaloniki, Greece, at the Porto Palace Hotel, in the period September 1-6, 2024.
The conference has been chaired by John Arvanitidis and Dimitris Christofilos, Aristotle University of Thessaloniki.
For more information, please visit the official webpage of EHPRG-61.

The Joint 28th AIRAPT and 60th EHPRG International Conference on High Pressure Science and Technology (AIRAPT-2023) took place in Edinburgh, UK, at the Edinburgh International Conference Centre (EICC), from July 23-28, 2023.
Immediately prior to AIRAPT/EHPRG, from the 19th to 23rd of July 2023, a Summer School had taken place, also based in Edinburgh, with accommodation provided in University Halls of Residence. The School was aimed at young researchers, and experimentalists wanting a grounding in theory and vice versa.
A photo album is available on the AIRAPT website.
For more information, please visit the official webpage of AIRAPT-23.

High-pressure in the headlines

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

Mineralized sclerites in the gorgonian coral Leptogorgia chilensis as a natural jamming system

by Chenhao HuRavi TutikaZhifei DengZian JiaLiuni ChenHongshun ChenYang GengXianghui XiaoPavel D. ShevchenkoChristoph PierreJames C. WeaverDaniel BaumMichael D. BartlettLing LiaDepartment of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104bDepartment of Mechanical Engineering, Soft Materials and Structures Lab, Virginia Tech, Blacksburg, VA 24061cMacromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24060dDepartment of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061eNational Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973fAdvanced Photon Source, Argonne National Laboratory, Lemont, IL 60439gMarine Operations, University of California, Santa Barbara, CA 03106hWyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138iDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139jDepartment of Visual and Data-Centric Computing, Zuse Institute Berlin, Berlin 14195, Germany

27 Oct 2025 at 8:00am

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Antidispersion in Flows in Leaky Channels

by Yiming Gan, Yisen Guo, John H. Thomas, Kimberly A. Boster, Jessica K. Shang, and Douglas H. Kelley

Solute transport in a channel has important implications in industrial processes, biomechanics, and drug delivery. When flow is driven down a channel by a pressure gradient, solute is spread axially by shear and laterally by molecular diffusion. The combination causes the effective axial diffusivity…

12 Nov 2025 at 11:00am

Why and When Merging Surface Nanobubbles Jump

by Yixin Zhang, Xiangyu Zhang, and Detlef Lohse

Molecular dynamics simulations and theory show how pressure energy, together with surface tension, drives coalescence-induced nanobubble release, offering fresh insights for enhancing gas evolution in key physicochemical processes.

7 Nov 2025 at 11:00am

Colloquium: Room temperature superconductivity: The roles of theory and materials design

by 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.

7 Apr 2023 at 12:00pm

In-plane Ni–O–Ni bond angles as structural fingerprints of superconductivity in layered nickelates: Effects of pressure, strain, layering, and correlations

by Bipasa Samanta and Alexandru B. Georgescu

We investigate the structural and electronic conditions conducive to superconductivity in layered nickelates using density-functional theory. For both the bilayer and 1–3 polymorphs of ${\mathrm{La}}_{3}{\mathrm{Ni}}_{2}{\mathrm{O}}_{7}$, we find that the in-plane Ni–O–Ni bond angles under pressure …

3 Nov 2025 at 11:00am

Erratum: Modeling the high-pressure solid and liquid phases of tin from deep potentials with ab initio accuracy [Phys. Rev. Materials 7, 053603 (2023)]

by Tao Chen, Fengbo Yuan, Jianchuan Liu, Huayun Geng, Linfeng Zhang, Han Wang, and Mohan Chen

28 Oct 2025 at 11:00am

Unraveling the interplay of spins, lattice, and pressure in $\mathrm{LuFe}{\mathrm{O}}_{3}$: Inelastic neutron scattering and ab initio simulations

by Sourav Bag, Samiran Malgope, Mayanak K. Gupta, S. K. Mishra, Ranjan Mittal, Stephane Rols, and Samrath L. Chaplot

The multiferroic $\mathrm{LuFe}{\mathrm{O}}_{3}$ unusually shows a magnetic order that causes ferroelectricity up to a rather high temperature of 610 K indicating very strong magnetoelectric coupling. We present the inelastic neutron-scattering (INS) measurements and ab initio density-functional the…

16 Oct 2025 at 12:00pm

Thermal properties of hexagonal diamond: Machine learning potential and molecular dynamics study

by Jian Zhang, Zhuo Zhao, Miao Jiang, Yuan Cheng, and Gang Zhang

Recently, well-crystallized and nearly phase-pure Lonsdaleite (hexagonal diamond) has been successfully synthesized by heating graphite under extreme pressure conditions. Despite ongoing investigations into its physical properties, there remains a lack of high-precision interatomic potentials capabl…

29 Sep 2025 at 12:00pm

The thermodynamics of ${\mathrm{CaSiO}}_{3}$ perovskite in Earth's lower mantle

by Yongjoong Shin, Enrico Di Lucente, Nicola Marzari, and Lorenzo Monacelli

The lower mantle of Earth, characterized by pressures of 24–127 GPa and temperatures of 1900–2600 K, is still inaccessible to direct observations. In this work, we investigate by first principles the stability, phase diagram, elastic properties, and thermal conductivity of Davemaoite (${\mathrm{CaSi…

14 Nov 2025 at 11:00am

Pressure-induced superconductivity in $\mathrm{La}{\mathrm{P}}_{2}$ with a graphenelike phosphorus layer

by Mingxin Zhang, Cuiying Pei, Bangshuai Zhu, Qi Wang, Juefei Wu, and Yanpeng Qi

Materials with graphenelike layers attract tremendous attention due to their electronic structures and superconducting properties. In this study, we synthesized $\mathrm{La}{\mathrm{P}}_{2}$ polycrystalline and observed a superconducting transition at around 30 GPa. The critical temperature ${T}_{c}…

14 Nov 2025 at 11:00am

Design principle for high-temperature superconductivity in ternary borides at ambient pressure

by Zhuangzhuang Qiao, Shuo Cai, Xiaotong Liao, Xiaowei Huang, Liying Zhang, Chongze Wang, J. Cho, Liangliang Liu, and Yu Jia

The discovery of metal borides with higher transition temperature (${T}_{\mathrm{c}}$) has been receiving continuous attention since the observation of superconductivity in ${\mathrm{MgB}}_{2}$ at 39 K. Here we propose a rational design strategy for high-${T}_{\mathrm{c}}$ ternary metal borides thro…

13 Nov 2025 at 11:00am

Anomalous phonon thermal transport of ${\mathrm{He}}_{2}{\mathrm{H}}_{2}\mathrm{O}$ at high pressure

by Yi-Xian Wang, Yu-Xuan Zhang, Shi-Jia Wang, Zhe Yuan, and Zhao-Qi Wang

Previous research [Nat. Phys. 15, 1065 (2019)] has confirmed that helium can react with ice to form a superionic compound under extreme condition relevant to the “hot ice” layers of ice giants. While these findings reshape our understanding of these planetary materials, the thermal transport propert…

12 Nov 2025 at 11:00am

Pressure-driven amorphous superconductivity in the topological semimetal ${\mathrm{VP}}_{4}$

by Na Zuo, Bowen Zheng, Chutong Zhang, Xiangzhuo Xing, Yalei Huang, Haoran Yu, Bin Li, Xiaolei Yi, Yan Meng, Xiaoran Zhang, Bingchao Yang, Xin Chen, Xiaofeng Xu, and Xiaobing Liu

Engineering superconductivity in pressurized topological materials is widely recognized as a promising pathway for achieving topological superconductivity. Herein, we report the pressure-tuned evolution of the structural and electronic properties of the topological semimetal ${\mathrm{VP}}_{4}$. Our…

10 Nov 2025 at 11:00am

High pressure–temperature picosecond acoustic measurements on Fe using an internal-resistive-heated diamond anvil cell

by Yoshihiro Nagaya Takashi Yagi Ryoto Ebina Kei Hirose Manabu Kodama Shuichiro Hirai Kenji Ohta a Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Meguro, Japanb National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japanc Department of Earth and Planetary Science, The University of Tokyo, Bunkyo, Japand Department of Mechanical Engineering, Tokyo Institute of Technology, Meguro, Japan

28 Jun 2025 at 8:57am

LiPF6 under pressure: a symmetry-mode-based structural analysis

by C. J. Ridley C. L. Bull N.P. Funnell a Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USAb Rutherford Appleton Laboratories, ISIS Neutron and Muon Source, Harwell, Didcot, UKc School of Chemistry, The University of Edinburgh, Edinburgh, UK

6 Jul 2025 at 8:31am

Synergistic effects of elevated hydrostatic pressure, mild heat, malic acid, and citricidalTM against wild-type, rifampicin-resistant, and pressure-stressed Shiga toxin-producing Escherichia coli

by Niraj Ghimire Ranju Kafle Junice Sibley Sandhya Thapa Aliyar Cyrus Fouladkhah a Public Health Microbiology Laboratory, Food Science Program, Tennessee State University, Nashville, TN, USAb Public Health Microbiology FoundationSM, Franklin, TN, USA

14 Jul 2025 at 7:17am

Pressure-induced phase transition in α-Bi₂O₃: evidence from synchrotron X-ray diffraction and Raman spectroscopy

by Zhenwu Zeng Hailian Hong Can Tian Jiayu Wang a Department of Physics, Faculty of Mechanical and Electrical Engineering, Sanming University, Sanming, People’s Republic of Chinab Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, People’s Republic of Chinac State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, People’s Republic of Chinad School of Physics and Optoelectronic Engineering, Hainan University, Haikou, People’s Republic of China

29 Jul 2025 at 9:29am

Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure

by Mark A. Ignatov Sergey V. Rashchenko Nikita E. Bogdanov Alexandr V. Romanenko Ella V. Sokol Svetlana N. Kokh a Sobolev Institute of Geology and Mineralogy Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russiab Department of Geology and Geophysics, Novosibirsk State University, Novosibirsk, Russia

18 Aug 2025 at 4:27am

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

31 Oct 2025 at 10:07am

The Download: AI to measure pain, and how to deal with conspiracy theorists

by Rhiannon Williams

13 Nov 2025 at 2:10pm

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