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.

Bulk superconductivity near 40 K in hole-doped SmNiO2 at ambient pressure
by S. Lin Er Chow


Nature, Published online: 20 March 2025; doi:10.1038/s41586-025-08893-4

Bulk superconductivity near 40 K in hole-doped SmNiO2 at ambient pressure
20 Mar 2025 at 12:00am
How ‘animal methods bias’ is affecting research careers
by Christine Ro


Nature, Published online: 20 March 2025; doi:10.1038/d41586-025-00593-3

Some early-career researchers report feeling pressure to use animal models to meet journal and grant requirements, even in disciplines and projects that don’t require them.
20 Mar 2025 at 12:00am
Sleep pressure accumulates in a voltage-gated lipid peroxidation memory
by H. Olof Rorsman


Nature, Published online: 19 March 2025; doi:10.1038/s41586-025-08734-4

Sleep-inducing neurons in Drosophila rely on Hyperkinetic, the β-subunit of the KV1 channel Shaker, to monitor sleep need by translating lipid peroxidation events into changes in the oxidation state of a stably bound NADPH cofactor.
19 Mar 2025 at 12:00am
High-pressure pump–probe experiments reveal the mechanism of excited-state proton-coupled electron transfer and a shift from stepwise to concerted pathways
by Daniel Langford


Nature Chemistry, Published online: 20 March 2025; doi:10.1038/s41557-025-01772-5

Chemical energy conversion and storage rely on the selective movement of protons and electrons, thus understanding these processes is important for applications. Now experiments at elevated pressures are shown to identify excited-state proton-coupled electron transfer mechanisms and to facilitate merging proton transfer with subsequent electron transfer steps towards a concerted pathway.
20 Mar 2025 at 12:00am
Davemaoite is present throughout the Earth’s lower mantle


Nature Geoscience, Published online: 28 February 2025; doi:10.1038/s41561-025-01658-8

High-pressure experiments reveal that calcium solubility in bridgmanite is insufficient to fully remove davemaoite from the Earth’s lower mantle. We propose that davemaoite-enriched domains form at the core–mantle boundary, serving as reservoirs for incompatible elements and offering a potential explanation for large low shear-wave velocity provinces.
28 Feb 2025 at 12:00am

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Electronic Structure of the Alternating Monolayer-Trilayer Phase of ${\mathrm{La}}_{3}{\text{Ni}}_{2}{\mathrm{O}}_{7}$
by Sebastien Abadi, Ke-Jun Xu, Eder G. Lomeli, Pascal Puphal, Masahiko Isobe, Yong Zhong, Alexei V. Fedorov, Sung-Kwan Mo, Makoto Hashimoto, Dong-Hui Lu, Brian Moritz, Bernhard Keimer, Thomas P. Devereaux, Matthias Hepting, and Zhi-Xun Shen
Author(s): Sebastien Abadi, Ke-Jun Xu, Eder G. Lomeli, Pascal Puphal, Masahiko Isobe, Yong Zhong, Alexei V. Fedorov, Sung-Kwan Mo, Makoto Hashimoto, Dong-Hui Lu, Brian Moritz, Bernhard Keimer, Thomas P. Devereaux, Matthias Hepting, and Zhi-Xun Shen


Recent studies of ${\mathrm{La}}_{3}{\text{Ni}}_{2}{\mathrm{O}}_{7}$ have identified a bilayer (2222) structure and an unexpected alternating monolayer-trilayer (1313) structure, both of which feature signatures of superconductivity near 80 K under high pressures. Using angle-resolved photoemission …


[Phys. Rev. Lett. 134, 126001] Published Tue Mar 25, 2025
25 Mar 2025 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
Chemical pressure tuning of multipolar and magnetic orders in $\mathrm{B}{\mathrm{a}}_{2}(\mathrm{C}{\mathrm{d}}_{1−x}\mathrm{C}{\mathrm{a}}_{x})\mathrm{Re}{\mathrm{O}}_{6}$ double perovskites
by Koki Shibuya, Daigorou Hirai, and Koshi Takenaka
Author(s): Koki Shibuya, Daigorou Hirai, and Koshi Takenaka


Double perovskite compounds containing $5d$ transition metal elements have been extensively studied as platforms for multipolar order phenomena stemming from spin-orbit-entangled $5d$ electrons. In this study, we examine the interplay between crystal structure, multipolar order, and magnetic order i…


[Phys. Rev. Materials 9, 034406] Published Mon Mar 10, 2025
10 Mar 2025 at 11:00am
Removal of excess iron by annealing processes and emergence of bulk superconductivity in sulfur-substituted FeTe
by Ryosuke Kurihara, Ryusuke Kogure, Tomotaka Ota, Yuto Kinoshita, Satoshi Hakamada, Masashi Tokunaga, and Hiroshi Yaguchi
Author(s): Ryosuke Kurihara, Ryusuke Kogure, Tomotaka Ota, Yuto Kinoshita, Satoshi Hakamada, Masashi Tokunaga, and Hiroshi Yaguchi


There are several strategies to discover new superconductors. Growing new materials and applying high pressures have been the classic ways since superconductivity was found. Also, chemical processing, such as annealing, is another way to induce superconductivity in a nonsuperconducting material. Her…


[Phys. Rev. Materials 9, 034802] Published Wed Mar 05, 2025
5 Mar 2025 at 11:00am
Pressure-driven solid–solid phase transformations of isotropic particles across diverse crystal structure types
by Hongjin Du, Hillary Pan, and Julia Dshemuchadse
Author(s): Hongjin Du, Hillary Pan, and Julia Dshemuchadse


Pressure-induced phase transformations are widely observed in crystalline materials, attracting interest across diverse fields from superconductors to pharmaceuticals. However, studying the mechanisms of these transformations in situ, with sufficient spatial and temporal resolution, remains a challe…


[Phys. Rev. Materials 9, 033401] Published Tue Mar 04, 2025
4 Mar 2025 at 11:00am
Pressure-induced topological changes in the Fermi surface of a two-dimensional molecular conductor
by T. Kobayashi, K. Yoshimi, H. Ma, S. Sekine, H. Taniguchi, N. Matsunaga, A. Kawamoto, and Y. Uwatoko
Author(s): T. Kobayashi, K. Yoshimi, H. Ma, S. Sekine, H. Taniguchi, N. Matsunaga, A. Kawamoto, and Y. Uwatoko


We demonstrated x-ray structural analysis of the pressure-induced superconductor ${β}^{′}\text{−}{\mathrm{ET}}_{2}{\mathrm{ICl}}_{2}$ under extremely high pressure conditions, where ET denotes bis(ethylenedithio)tetrathiafulvalene. This material has been known as the highest transition temperature (…


[Phys. Rev. Materials 9, L021801] Published Fri Feb 07, 2025
7 Feb 2025 at 11:00am
Electric field controlled magnetism and hole doping in monolayer FeSe on a polar NaCl substrate
by Hui-Hui He, Shenyuan Yang, Zhong-Yi Lu, and Kai Liu
Author(s): Hui-Hui He, Shenyuan Yang, Zhong-Yi Lu, and Kai Liu


The discovery of high-${T}_{\text{c}}$ superconductivity at FeSe/${\mathrm{SrTiO}}_{3}$ interface under ambient pressure has inspired great interest in exploring interfacial superconductivity in Fe-based systems. While most high-${T}_{\text{c}}$ FeSe superconducting systems are electron-doped, the h…


[Phys. Rev. B 111, 125152] Published Mon Mar 24, 2025
24 Mar 2025 at 11:00am
Anisotropic high-${T}_{c}$ superconductivity above 90 K in hole-doped boron-nitrogen clathrates at ambient pressure
by Yu-Lin Han, Kai-Yue Jiang, Bao-Tian Wang, Ping Zhang, and Hong-Yan Lu
Author(s): Yu-Lin Han, Kai-Yue Jiang, Bao-Tian Wang, Ping Zhang, and Hong-Yan Lu


Breakthroughs in near-room-temperature superconductivity within clathrate hydrides underscore the effectiveness of theory-driven approaches to designing high-${T}_{c}$ superconductors. However, superconductivity in these clathrate hydrides has not been realized at low or ambient pressures. To explor…


[Phys. Rev. B 111, 094520] Published Thu Mar 20, 2025
20 Mar 2025 at 11:00am
Ambient-pressure topological superconductivity in ${\mathrm{Ag}}_{4}\mathrm{H}$ up to 63 K by metallization of hydrogen
by Chong Tian, Jun-jie Shi, Pinyuan Wang, Juan Du, Jing Lu, Xinqiang Wang, Yao-hui Zhu, and Hong-xia Zhong
Author(s): Chong Tian, Jun-jie Shi, Pinyuan Wang, Juan Du, Jing Lu, Xinqiang Wang, Yao-hui Zhu, and Hong-xia Zhong


Topological superconductors (TSCs) are an ideal platform for realizing Majorana fermions to implement fault-tolerant topological quantum computation. However, the low transition temperature (${T}_{c}$) of TSCs hinders experimental measurements and practical applications. Here, we propose that metal-…


[Phys. Rev. B 111, 094521] Published Thu Mar 20, 2025
20 Mar 2025 at 11:00am
In situ electrical conductivity measurement of saturated rocks at shallow crustal temperatures and pressures in an autoclave
by Chaoyi Xiao Shuangming Shan Heping Li Sen Lin Shengbin Li a Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, People’s Republic of Chinab University of Chinese Academy of Sciences, Beijing, People’s Republic of China
Volume 45, Issue 1, March 2025, Page 57-66
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24 Dec 2024 at 7:38am
Temperature gradients in high pressure multi-anvil cell
by Takuya Moriguti Akira Yoneda Eiji Ito a Institute for Planetary Materials, Okayama University, Misasa, Tottori, Japanb Department of Earth and Space Science, Osaka University, Toyonaka, Osaka, Japan
Volume 45, Issue 1, March 2025, Page 1-16
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19 Dec 2024 at 1:29pm
Pressure-sensitive germanate glass-Li2GeO3, a multifunctional energy material: a theoretical study
by R. Zosiamliana L. Celestine Lalhriat Zuala B. Chettri Zodin Mawia G. Abdurakhmanov A. Laref Shalika R. Bhandari D. P. Rai a Physical Sciences Research Center (PSRC), Department of Physics, Pachhunga University College, Mizoram University, Aizawl, Indiab Department of Physics, Mizoram University, Aizawl, Indiac Department of Physics, North-Eastern Hill University, Shillong, Indiad National University of Uzbekistan, Tashkent, Uzbekistane Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, Saudi Arabiaf Department of Physics, Bhairahawa Multiple Campus, Tribhuvan University, Rupandehi, Nepal
Volume 45, Issue 1, March 2025, Page 29-56
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25 Dec 2024 at 7:29am
High pressure behavior of incommensurately modulated nyerereite structure
by N. Bogdanov S. Rashchenko P. Gavryushkin V. Thomas D. Fursenko Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia
Volume 45, Issue 1, March 2025, Page 67-78
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27 Dec 2024 at 8:15am
Crystalline state in a pressure region of proceeding amorphization of SnI4
by Kazuhiro Fuchizaki Hiroki Naruta Fumiya Sato Tomohiro Ohuchi Akio Suzuki a Department of Physics, Ehime University, Matsuyama, Japanb Graduate School of Science and Engineering, Ehime University, Matsuyama, Japanc Geodynamics Research Center, Ehime University, Matsuyama, Japand Department of Earth Science, Tohoku University, Sendai, Japan
Volume 45, Issue 1, March 2025, Page 90-107
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13 Jan 2025 at 12:09pm
High pressure Raman spectroscopy of boron-rich boron carbides up to 50 GPa
by Raimundas Sereika Seth Iwan Paul A. Baker Yogesh K. Vohra Department of Physics, University of Alabama at Birmingham, Birmingham, AL, USA
Volume 45, Issue 1, March 2025, Page 79-89
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6 Jan 2025 at 8:55am
Disruption of Lipomyces starkeyi cells grown in hydrolyzed cheese-whey by high pressure homogenization for enhancing lipid extraction
by Ayşe Alara Batıgün Hami Alpas Deniz Cekmecelioglu Department of Food Engineering, Middle East Technical University, Ankara, Turkey
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13 Mar 2025 at 11:57am
The magnetism and elasticity of ϵ-FeOOH across the pressure-induced electronic spin transition
by Osamu Ikeda Tatsuya Sakamaki Takaya Mitsui Kosuke Fujiwara Hiroshi Uchiyama Hiroshi Fukui Daisuke Ishikawa Alfred Q.R. Baron Akio Suzuki a Department of Earth Science, Graduate School of Science, Tohoku University, Sendai, Japanb Kansai Institute for Photon Science, National Institute for Quantum Science and Technology, Sayo, Japanc Japan Synchrotron Radiation Research Institute, Sayo, Japand Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Japan
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19 Feb 2025 at 7:57am