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.

Slow slip along the Hikurangi margin linked to fluid-rich sediments trailing subducting seamounts
by Nathan L. Bangs


Nature Geoscience, Published online: 05 June 2023; doi:10.1038/s41561-023-01186-3

Sediment lenses trailing subducting seamounts could maintain long-lasting fluid pressures and support slow-slip behaviour at sediment-rich subduction zones, according to three-dimensional seismic surveys of the Hikurangi margin.
5 Jun 2023 at 12:00am


Proximate deconfined quantum critical point in SrCu2(BO3)2 | Science
The deconfined quantum critical point (DQCP) represents a paradigm shift in quantum matter studies, presenting a “beyond Landau” scenario for order–order transitions. Its experimental realization, however, has remained elusive. Using high-pressure 11B ...
25 May 2023 at 3:01pm


A push for mechanochemistry | Science
Chemical reactions can be accelerated by directional local pressure applied to molecules
8 Jun 2023 at 3:01pm

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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
Machine-learning approach for discovery of conventional superconductors
by Huan Tran and Tuoc N. Vu
Author(s): Huan Tran and Tuoc N. Vu


First-principles computations are the driving force behind numerous discoveries of hydride-based superconductors, mostly at high pressures, during the last decade. Machine-learning (ML) approaches can further accelerate the future discoveries if their reliability can be improved. The main challenge …


[Phys. Rev. Materials 7, 054805] Published Wed May 31, 2023
31 May 2023 at 12:00pm
Mapping superconductivity in high-pressure hydrides: The Superhydra project
by Santanu Saha, Simone Di Cataldo, Federico Giannessi, Alessio Cucciari, Wolfgang von der Linden, and Lilia Boeri
Author(s): Santanu Saha, Simone Di Cataldo, Federico Giannessi, Alessio Cucciari, Wolfgang von der Linden, and Lilia Boeri


The discovery of high-${T}_{c}$ conventional superconductivity in high-pressure hydrides has helped establish computational methods as a formidable tool to guide material discoveries in a field traditionally dominated by serendipitous experimental search. This paves the way to an ever-increasing use…


[Phys. Rev. Materials 7, 054806] Published Wed May 31, 2023
31 May 2023 at 12:00pm
Pressure dependence of electronic, vibrational and optical properties of wurtzite-boron nitride
by Martino Silvetti, Claudio Attaccalite, and Elena Cannuccia
Author(s): Martino Silvetti, Claudio Attaccalite, and Elena Cannuccia


Wurtzite Boron Nitride ($w\mathrm{BN}$) is a wide band gap BN polymorph with unique mechanical properties such as hardness and stiffness. Initially synthesized in 1963 by transforming hexagonal BN ($h\mathrm{BN}$) under high temperature and pressure conditions, $w\mathrm{BN}$ can now be stabilized a…


[Phys. Rev. Materials 7, 055201] Published Tue May 30, 2023
30 May 2023 at 12:00pm
Modeling the high-pressure solid and liquid phases of tin from deep potentials with ab initio accuracy
by Tao Chen, Fengbo Yuan, Jianchuan Liu, Huayun Geng, Linfeng Zhang, Han Wang, and Mohan Chen
Author(s): Tao Chen, Fengbo Yuan, Jianchuan Liu, Huayun Geng, Linfeng Zhang, Han Wang, and Mohan Chen


Constructing an accurate atomistic model for the high-pressure phases of tin (Sn) is challenging because the properties of Sn are sensitive to pressures. We develop machine-learning-based deep potentials for Sn with pressures ranging from 0 to 50 GPa and temperatures ranging from 0 to 2000 K. In par…


[Phys. Rev. Materials 7, 053603] Published Thu May 11, 2023
11 May 2023 at 12:00pm
Assessing the stability fields of molecular and polymeric $\mathrm{C}{\mathrm{O}}_{2}$
by Alexander F. Goncharov, Elena Bykova, Maxim Bykov, Eric Edmund, Jesse S. Smith, Stella Chariton, and Vitali B. Prakapenka
Author(s): Alexander F. Goncharov, Elena Bykova, Maxim Bykov, Eric Edmund, Jesse S. Smith, Stella Chariton, and Vitali B. Prakapenka


We investigated the stability of polymeric $\mathrm{C}{\mathrm{O}}_{2}$ over a wide range of pressures, temperatures, and chemical environments. We find that the $I\overline{4}2d$ polymeric structure, consisting of a three-dimensional network of corner sharing $\mathrm{C}{\mathrm{O}}_{4}$ tetrahedra…


[Phys. Rev. Materials 7, 053604] Published Thu May 11, 2023
11 May 2023 at 12:00pm
Pressure-induced superconductivity in the metal thiophosphate ${\mathrm{Pb}}_{2}{\mathrm{P}}_{2}{\mathrm{S}}_{6}$
by Xinyi He, Zhitao Zhang, Zhenyu Ding, Shuyang Wang, Chunhua Chen, Xuliang Chen, Yonghui Zhou, Chao An, Min Zhang, Ying Zhou, Xiaoping Yang, and Zhaorong Yang
Author(s): Xinyi He, Zhitao Zhang, Zhenyu Ding, Shuyang Wang, Chunhua Chen, Xuliang Chen, Yonghui Zhou, Chao An, Min Zhang, Ying Zhou, Xiaoping Yang, and Zhaorong Yang


We report on the pressure-tuning of the physical properties of a metal thiophosphate ${\mathrm{Pb}}_{2}{\mathrm{P}}_{2}{\mathrm{S}}_{6}$. Resistance measurements evidence a semiconducting-to-metallic transition at around 39 GPa and immediate emergence of superconductivity. The superconducting critic…


[Phys. Rev. Materials 7, 054801] Published Tue May 09, 2023
9 May 2023 at 12:00pm
Anomalous thermal transport in MgSe with diamond phase under pressure
by Wei Cao, Jing Shi, Rui Xiong, Ling Miao, Ziyu Wang, and Zhengyou Liu
Author(s): Wei Cao, Jing Shi, Rui Xiong, Ling Miao, Ziyu Wang, and Zhengyou Liu


Most materials exhibit a monotonically increasing lattice thermal conductivity with pressure. However, in this work, we report anomalous thermal transport properties of MgSe with a diamond phase under high pressure by first-principles calculations. Unlike other selenides, the lattice thermal conduct…


[Phys. Rev. B 107, 235201] Published Wed Jun 07, 2023
7 Jun 2023 at 12:00pm
New uniaxial pressure cell used in a study of magnetization of the Heusler Ni2MnSn-based alloy
by J. Kamarád
Volume 43, Issue 1, March 2023, Page 15-22
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2 Feb 2023 at 2:46am
Effect of pressure of vanadium nitride using XRD and DFT
by Lun Xiong
Volume 43, Issue 1, March 2023, Page 58-67
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21 Mar 2023 at 6:28am
Thermal conductivity of platinum and periclase under extreme conditions of pressure and temperature
by Akira Hasegawa
Volume 43, Issue 1, March 2023, Page 68-80
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27 Mar 2023 at 6:15am
High pressure Raman study of Na4Ca(CO3)3 from the ambient pressure to 11 GPa
by Sergey Rashchenko
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5 Jun 2023 at 5:53am
The use of LEDs as a light source for fluorescence pressure measurements
by Rustem Khasanov
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17 May 2023 at 6:11am
Salting and slight drying as combination pretreatments to alleviate quality alteration of raw grass carp fillets after high pressure processing
by Linyun Chen
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24 Apr 2023 at 6:55am
Effect of high-hydrostatic-pressure processing on catechin content in green tea leaves
by Hsiuming Liu
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3 Apr 2023 at 7:49am
Vacuum impregnation of liquid into carrot assisted by high hydrostatic pressure
by Ming Gao
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31 Mar 2023 at 6:32am
Modeling the inactivation of Aspergillus niger spores in a model parenteral emulsion by high hydrostatic pressure and its effect on the emulsion droplet size
by Maricarmen Iñiguez-Moreno
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3 Mar 2023 at 10:15am
Development of an explicit pressure explicit saturation (EPES) method for modelling dissociation processes of methane hydrate
by Giovanni Luzi
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27 Dec 2022 at 4:10am