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 high pressure meetings

 


The current COVID pandemic has led to the cancellation of numerous scientific conferences over the last year, including the 2020 GRC and GRS high-pressure conferences, and the combined AIRAPT/EHPRG-2021 conference that was to be held in Edinburgh this summer. The negative effects of this are being most keenly felt by younger researchers, who have missed golden opportunities to present both their work, and themselves, to the rest of the community.
This online conference aims to address this, by providing up to 360 20-minute oral presentations in which young and early career researchers in our field to present their research to the rest of our international community. Such researchers will be offered the great majority of these slots, complemented by some didactic talks from more established researchers and facility operators. Everyone in the high-pressure community is welcome to attend.
CESC-2021 will be chaired by Malcolm McMahon.
For more information, please visit the official webpage of CSEC2021.

Upcoming EHPRG Meeting

 


The Joint 28th AIRAPT and 60th EHPRG International Conference on High Pressure Science and Technology (AIRAPT-2021), originally scheduled for July 2021, has been postponed, and will be held in Edinburgh, UK, in 2023. Exact dates will be announced as soon as possible. AIRAPT-21 will be chaired by Malcolm McMahon (CSEC and University of Edinburgh, UK).
In spite of the Joint AIRAPT-EHPRG Conference, an online Conference on Science at Extreme Conditions will take place in 2021. This online event will have a special focus on young and early career researchers. This will NOT be an AIRAPT/EHPRG conference, but the organizers expect to be able to offer up to 360 slots for 20-minute, and 5-minute “lightning”, oral presentations, spread over 5 days, each of which will have two 2-hour time slots (11am-1pm and 3-5pm UK time), timed so as to provide “office hours” access to speakers from Asia/Europe and Americas/Europe, respectively. Each 2-hour time slot will host up to 6 parallel sessions. The great majority of the available slots for talks will be given to young researchers, complemented by some didactic presentations from more established researchers and facility providers. Everyone in the high-pressure community is welcome to attend.
For more information, please visit the official webpage of AIRAPT-21.

High-pressure in the headlines

 

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

    How a soft robot survived the deepest ocean on earth
    by Noah Baker

    Nature, Published online: 05 March 2021; doi:10.1038/d41586-021-00605-y

    Deep-sea fish inspires robot that can withstand the crushing pressures of the Mariana trench
    5 Mar 2021 at 12:00am
    Self-powered soft robot in the Mariana Trench
    by Guorui Li

    Nature, Published online: 03 March 2021; doi:10.1038/s41586-020-03153-z

    A free-swimming soft robot inspired by deep-sea creatures, with artificial muscle, power and control electronics spread across a polymer matrix, successfully adapts to high pressure and operates in the deep ocean.
    3 Mar 2021 at 12:00am
    Soft robot reaches the deepest part of the ocean
    by Cecilia Laschi

    Nature, Published online: 03 March 2021; doi:10.1038/d41586-021-00489-y

    A self-powered robot inspired by a fish can survive the extreme pressures at the bottom of the ocean’s deepest trench, thanks to its soft body and distributed electronic system — and might enable exploration of the uncharted ocean.
    3 Mar 2021 at 12:00am
    Recurrent deletions in the SARS-CoV-2 spike glycoprotein drive antibody escape
    by McCarthy, K. R., Rennick, L. J., Nambulli, S., Robinson-McCarthy, L. R., Bain, W. G., Haidar, G., Duprex, W. P.

    Zoonotic pandemics, like that caused by SARS-CoV-2, can follow the spillover of animal viruses into highly susceptible human populations. Their descendants have adapted to the human host and evolved to evade immune pressure. Coronaviruses acquire substitutions more slowly than other RNA viruses, due to a proofreading polymerase. In the spike glycoprotein, we find recurrent deletions overcome this slow substitution rate. Deletion variants arise in diverse genetic and geographic backgrounds, transmit efficiently, and are present in novel lineages, including those of current global concern. They frequently occupy recurrent deletion regions (RDRs), which map to defined antibody epitopes. Deletions in RDRs confer resistance to neutralizing antibodies. By altering stretches of amino acids, deletions appear to accelerate SARS-CoV-2 antigenic evolution and may, more generally, drive adaptive evolution.


    3 Feb 2021 at 7:50pm
    Widespread haploid-biased gene expression enables sperm-level natural selection
    by Bhutani, K., Stansifer, K., Ticau, S., Bojic, L., Villani, A.-C., Slisz, J., Cremers, C. M., Roy, C., Donovan, J., Fiske, B., Friedman, R. C.

    Sperm are haploid but must be functionally equivalent to distribute alleles equally among progeny. Accordingly, gene products are shared through spermatid cytoplasmic bridges that erase phenotypic differences between individual haploid sperm. Here, we show that a large class of mammalian genes are not completely shared across these bridges. We call these genes "genoinformative markers" (GIMs) and show that a subset can act as selfish genetic elements that spread alleles unevenly through murine, bovine, and human populations. We identify evolutionary pressure to avoid conflict between sperm and somatic function as GIMs are enriched for testis-specific gene expression, paralogs, and isoforms. Therefore, GIMs and sperm-level natural selection may help to explain why testis gene expression patterns are an outlier relative to all other tissues.


    4 Mar 2021 at 7:40pm
    High-sensitivity heat-capacity measurements on Sr2RuO4 under uniaxial pressure [Physics]
    by You–Sheng Li, Naoki Kikugawa, Dmitry A. Sokolov, Fabian Jerzembeck, Alexandra S. Gibbs, Yoshiteru Maeno, Clifford W. Hicks, Jorg Schmalian, Michael Nicklas, Andrew P. Mackenzie
    A key question regarding the unconventional superconductivity of Sr2RuO4 remains whether the order parameter is single- or two-component. Under a hypothesis of two-component superconductivity, uniaxial pressure is expected to lift their degeneracy, resulting in a split transition. The most direct and fundamental probe of a split transition is heat capacity....
    2 Mar 2021 at 8:28pm
    The battle between harvest and natural selection creates small and shy fish [Evolution]
    by Christopher T. Monk, Dorte Bekkevold, Thomas Klefoth, Thilo Pagel, Miquel Palmer, Robert Arlinghaus
    Harvest of fish and wildlife, both commercial and recreational, is a selective force that can induce evolutionary changes to life history and behavior. Naturally selective forces may create countering selection pressures. Assessing natural fitness represents a considerable challenge in broadcast spawners. Thus, our understanding about the relative strength of natural...
    22 Feb 2021 at 9:04pm
    Surface-enhanced Raman spectroscopic investigation on adsorption kinetic of carbon monoxide at the solid–gas interface
    by Ming Ge
    The Journal of Chemical Physics, Volume SPMPS2020, Issue 1, February 2021.
    A molecular-level understanding of CO adsorption behavior would be greatly beneficial to resolving the problem of CO poisoning in fuel cells and medical science. Herein, an efficient borrowing strategy based on surface enhanced Raman scattering (SERS) has been developed to investigate the adsorption behavior of CO at the gas–solid interface. A composite SERS substrate with high uniformity was fabricated by electrochemical deposition of optimal Pt over-layers onto an Au nanoparticle film. The results indicated that the linearly bonded mode follows the Langmuir adsorption curve (type I), while the multiply bonded did not. It took a longer time for the C–OM vibration to reach the adsorption equilibrium than that of C–OL. The variation tendency toward the Pt–COL frequency was in opposition to that of C–OL, caused by the chemical and dipole–dipole coupling effects. The increase in dynamic coupling effects of the CO molecules caused a blue shift in νCO and a red shift of the Pt–CO band, while its shielding effect on SERS intensity cannot be ignored. Additionally, higher pressure is more conducive for linear adsorption to achieve saturation. Density functional theory calculations were employed to explore the adsorption mechanisms. It should also be noted that the substrate with good recycling performance greatly expands its practical application value. The present study suggested that the SERS-based borrowing strategy shows sufficient even valuable capacity to investigate gas adsorption kinetics behavior.
    21 Dec 2020 at 11:55am
    Iterative integral equation methods for structural coarse-graining
    by Marvin P. Bernhardt
    The Journal of Chemical Physics, Volume 154, Issue 8, February 2021.
    In this paper, new Newton and Gauss–Newton methods for iterative coarse-graining based on integral equation theory are evaluated and extended. In these methods, the potential update is calculated from the current and target radial distribution function, similar to iterative Boltzmann inversion, but gives a potential update of quality comparable with inverse Monte Carlo. This works well for the coarse-graining of molecules to single beads, which we demonstrate for water. We also extend the methods to systems that include coarse-grained bonded interactions and examine their convergence behavior. Finally, using the Gauss–Newton method with constraints, we derive a model for single bead methanol in implicit water, which matches the osmotic pressure of the atomistic reference. An implementation of all new methods is provided for the open-source VOTCA package.
    26 Feb 2021 at 11:46am
    Can we define a unique microscopic pressure in inhomogeneous fluids?
    by Kaihang Shi
    The Journal of Chemical Physics, Volume 154, Issue 8, February 2021.
    The estimation of a microscopic pressure tensor in an adsorbed thin film on a planar surface remains a challenge in both experiment and theory. While the normal pressure is well-defined for a planar surface, the tangential pressure at a point is not uniquely defined at the nanoscale. We report a new method that allows us to calculate the local pressure tensor and its spatial integral using an arbitrary contour definition of the “virial-route” local pressure tensor. We show that by integrating the local tangential pressure over a small region of space, roughly the range of the intermolecular forces, it is possible to define a coarse-grained tangential pressure that appears to be unique and free from ambiguities in the definition of the local pressure tensor. We support our argument by presenting the results for more than ten types of contour definitions of the local pressure tensor. By defining the coarse-grained tangential pressure, we can also find the effective thickness of the adsorbed layer and, in the case of a porous material, the statistical pore width. The coarse-grained in-layer and in-pore tangential pressures are determined for Lennard-Jones argon adsorbed in realistic carbon slit pores, providing a better understanding of the pressure enhancement for strongly wetting systems.
    22 Feb 2021 at 12:54pm
    Tuning the hexane isomer separation performances of Zeolitic Imidazole Framework-8 using mechanical pressure
    by Henglo Zhao
    The Journal of Chemical Physics, Volume 154, Issue 8, February 2021.
    Hybrid osmotic Monte Carlo simulations were performed to anticipate the tunability of the separation performance of the flexible Zeolitic Imidazole Framework-8 (ZIF-8) via the application of an external mechanical pressure. This synergistic combination of mechanical control of the pore aperture/cage dimension and guest adsorption was applied to the challenging hexane isomers separation processes of vital importance in the field of petrochemical industry. The application of a mechanical pressure above 1 GPa was predicted to boost the linear hexane/2-methylpentane and 2-methylpentane/2,3-dimethylbutane selectivity by 40% and 17%, respectively, as compared to the pristine ZIF-8. We further unraveled the microscopic origin of this optimized performance with an in-depth analysis of the critical interplay between the structural changes of the ZIF-8 framework and the conformational rearrangements of C6 isomers under mechanical pressure.
    23 Feb 2021 at 12:01pm
    Interfacial properties of binary mixtures of Lennard-Jones chains in planar interfaces by molecular dynamics simulation
    by Eder L. Granados-Bazán
    The Journal of Chemical Physics, Volume 154, Issue 8, February 2021.
    Binary mixtures of fully flexible linear tangent chains composed of bonded Lennard-Jones interaction sites (monomers) were studied using the molecular dynamics simulation in the NVT ensemble. Their interfacial properties were investigated in planar interfaces by direct simulation of an explicit liquid film in equilibrium with its vapor. A method for the calculation of long-range interactions in inhomogeneous fluids was implemented to take into account the potential truncation effects. Surface tension and the pressure tensor were calculated via the classical Irving–Kirkwood method; vapor pressure, orthobaric densities, density profiles, and Gibbs relative adsorption of the volatile component with respect to the heavy component were also obtained. The properties were studied as a function of the temperature, molar concentration of the heavy component, and the asymmetry of the mixture. According to the results of this work, the temperature loses influence on the surface tension, vapor pressure, and Gibbs relative adsorption curves as the molecular length of the heavy component increases. This suggests that the universal behavior observed in pure fluids of Lennard-Jones chains also holds for binary mixtures. The contribution of the long-range interactions turned out to account for about 60%, 20%, and 10% of the surface tension, vapor pressure, and orthobaric density final values, respectively. This contribution was even larger at high temperatures and for large molecules. Strong enrichment of the volatile component at the interface was observed in the asymmetric mixtures. One of these mixtures even showed a barotropic effect at elevated pressures and a class III phase behavior.
    26 Feb 2021 at 11:46am
    Revisiting the Power Law Characteristics of the Plastic Shock Front under Shock Loading
    by Songlin Yao, Jidong Yu, Yinan Cui, Xiaoyang Pei, Yuying Yu, and Qiang Wu
    Author(s): Songlin Yao, Jidong Yu, Yinan Cui, Xiaoyang Pei, Yuying Yu, and Qiang Wu

    Under uniaxial shock compression, the steepness of the plastic shock front usually exhibits power law characteristics with the Hugoniot pressure, also known as the “Swegle-Grady law.” In this Letter, we show that the Swegle-Grady law can be described better by a third power law rather than the class...


    [Phys. Rev. Lett. 126, 085503] Published Fri Feb 26, 2021
    26 Feb 2021 at 11:00am
    Friction on Ice: How Temperature, Pressure, and Speed Control the Slipperiness of Ice
    by Rinse W. Liefferink, Feng-Chun Hsia, Bart Weber, and Daniel Bonn
    Author(s): Rinse W. Liefferink, Feng-Chun Hsia, Bart Weber, and Daniel Bonn

    A new approach for studying friction on ice helps explain why the ease of sliding depends strongly on temperature, contact pressure, and speed.


    [Phys. Rev. X 11, 011025] Published Mon Feb 08, 2021
    8 Feb 2021 at 11:00am
    Emergent Magnetic Phases in Pressure-Tuned van der Waals Antiferromagnet ${\mathrm{FePS}}_{3}$
    by Matthew J. Coak, David M. Jarvis, Hayrullo Hamidov, Andrew R. Wildes, Joseph A. M. Paddison, Cheng Liu, Charles R. S. Haines, Ngoc T. Dang, Sergey E. Kichanov, Boris N. Savenko, Sungmin Lee, Marie Kratochvílová, Stefan Klotz, Thomas C. Hansen, Denis P. Kozlenko, Je-Geun Park, and Siddharth S. Saxena
    Author(s): Matthew J. Coak, David M. Jarvis, Hayrullo Hamidov, Andrew R. Wildes, Joseph A. M. Paddison, Cheng Liu, Charles R. S. Haines, Ngoc T. Dang, Sergey E. Kichanov, Boris N. Savenko, Sungmin Lee, Marie Kratochvílová, Stefan Klotz, Thomas C. Hansen, Denis P. Kozlenko, Je-Geun Park, and Siddharth S. Saxena

    High-pressure neutron studies of so-called magnetic graphene unveil exotic new states and behaviors as the material transitions from an insulator to a metal when compressed.


    [Phys. Rev. X 11, 011024] Published Fri Feb 05, 2021
    5 Feb 2021 at 11:00am
    Pressure-induced structural transition and antiferromagnetism in elemental terbium
    by D. P. Kozlenko, V. Yu. Yushankhai, R. Hayn, M. Richter, N. O. Golosova, S. E. Kichanov, E. V. Lukin, and B. N. Savenko
    Author(s): D. P. Kozlenko, V. Yu. Yushankhai, R. Hayn, M. Richter, N. O. Golosova, S. E. Kichanov, E. V. Lukin, and B. N. Savenko

    Structural and magnetic properties of rare-earth Tb metal have been studied by means of neutron powder diffraction at pressures up to 9 GPa in the temperature range 7–290 K. A structural phase transition from the initial hexagonal close-packed (hcp) to the Sm-type rhombohedral phase develops gradual...


    [Phys. Rev. Materials 5, 034402] Published Thu Mar 04, 2021
    4 Mar 2021 at 11:00am
    Pressure-induced reconstructive phase transition in ${\mathrm{Cd}}_{3}{\mathrm{As}}_{2}$
    by Monika Gamża, Paolo Abrami, Lawrence V. D. Gammond, Jake Ayres, Israel Osmond, Takaki Muramatsu, Robert Armstrong, Hugh Perryman, Dominik Daisenberger, Sitikantha Das, and Sven Friedemann
    Author(s): Monika Gamża, Paolo Abrami, Lawrence V. D. Gammond, Jake Ayres, Israel Osmond, Takaki Muramatsu, Robert Armstrong, Hugh Perryman, Dominik Daisenberger, Sitikantha Das, and Sven Friedemann

    Cadmium arsenide $({\mathrm{Cd}}_{3}{\mathrm{As}}_{2})$ hosts massless Dirac electrons in its ambient-condition tetragonal phase. We report x-ray diffraction and electrical resistivity measurements of ${\mathrm{Cd}}_{3}{\mathrm{As}}_{2}$ upon cycling pressure beyond the critical pressure of the tetr...


    [Phys. Rev. Materials 5, 024209] Published Fri Feb 26, 2021
    26 Feb 2021 at 11:00am
    Stability and bonding nature of clathrate H cages in a near-room-temperature superconductor ${\mathrm{LaH}}_{10}$
    by Seho Yi, Chongze Wang, Hyunsoo Jeon, and Jun-Hyung Cho
    Author(s): Seho Yi, Chongze Wang, Hyunsoo Jeon, and Jun-Hyung Cho

    Lanthanum hydride (${\mathrm{LaH}}_{10}$) with a sodalitelike clathrate structure was experimentally synthesized to exhibit a near-room-temperature superconductivity under megabar pressures. Based on first-principles density-functional theory calculations, we reveal that the metal framework of La at...


    [Phys. Rev. Materials 5, 024801] Published Thu Feb 11, 2021
    11 Feb 2021 at 11:00am
    Patterning enhanced tetragonality in $\mathrm{Bi}\mathrm{Fe}{\mathrm{O}}_{3}$ thin films with effective negative pressure by helium implantation
    by C. Toulouse, J. Fischer, S. Farokhipoor, L. Yedra, F. Carlà, A. Jarnac, E. Elkaim, P. Fertey, J.-N. Audinot, T. Wirtz, B. Noheda, V. Garcia, S. Fusil, I. Peral Alonso, M. Guennou, and J. Kreisel
    Author(s): C. Toulouse, J. Fischer, S. Farokhipoor, L. Yedra, F. Carlà, A. Jarnac, E. Elkaim, P. Fertey, J.-N. Audinot, T. Wirtz, B. Noheda, V. Garcia, S. Fusil, I. Peral Alonso, M. Guennou, and J. Kreisel

    Helium implantation in epitaxial thin films is a way to control the out-of-plane deformation independently from the in-plane strain controlled by epitaxy. In particular, implantation by means of a helium microscope allows for local implantation and patterning down to the nanometer resolution, which ...


    [Phys. Rev. Materials 5, 024404] Published Tue Feb 09, 2021
    9 Feb 2021 at 11:00am
    Reemergence of superconductivity in pressurized quasi-one-dimensional superconductor ${\mathrm{K}}_{2}{\mathrm{Mo}}_{3}{\mathrm{As}}_{3}$
    by Cheng Huang, Jing Guo, Kang Zhao, Fan Cui, Shengshan Qin, Qingge Mu, Yazhou Zhou, Shu Cai, Chongli Yang, Sijin Long, Ke Yang, Aiguo Li, Qi Wu, Zhian Ren, Jiangping Hu, and Liling Sun
    Author(s): Cheng Huang, Jing Guo, Kang Zhao, Fan Cui, Shengshan Qin, Qingge Mu, Yazhou Zhou, Shu Cai, Chongli Yang, Sijin Long, Ke Yang, Aiguo Li, Qi Wu, Zhian Ren, Jiangping Hu, and Liling Sun

    Here we report a pressure-induced reemergence of superconductivity in a recently discovered superconductor ${\mathrm{K}}_{2}{\mathrm{Mo}}_{3}{\mathrm{As}}_{3}$, which is an experimental case observed in quasi-one-dimensional superconductors. We find that, after full suppression of the ambient-pressu...


    [Phys. Rev. Materials 5, L021801] Published Mon Feb 01, 2021
    1 Feb 2021 at 11:00am
    Interface pinning causes the hysteresis of the hydride transformation in binary metal hydrides
    by Nicholas J. Weadock, Peter W. Voorhees, and Brent Fultz
    Author(s): Nicholas J. Weadock, Peter W. Voorhees, and Brent Fultz

    Hydriding and dehydriding transitions in bulk and nanocrystalline binary metal hydrides were studied using the Pd-H model system by measuring pressure-composition isotherms with in situ x-ray diffractometry. Nanocrystalline Pd showed a smaller pressure hysteresis, solvus hysteresis, and hysteresis i...


    [Phys. Rev. Materials 5, 013604] Published Thu Jan 28, 2021
    28 Jan 2021 at 11:00am
    High-pressure synthesis of ${\mathrm{Ba}}_{2}{\mathrm{RhO}}_{4}$, a rhodate analog of the layered perovskite Sr-ruthenate
    by I. Kurata, José A. Flores-Livas, H. Sugimoto, H. Takahashi, H. Sagayama, Y. Yamasaki, T. Nomoto, R. Arita, and S. Ishiwata
    Author(s): I. Kurata, José A. Flores-Livas, H. Sugimoto, H. Takahashi, H. Sagayama, Y. Yamasaki, T. Nomoto, R. Arita, and S. Ishiwata

    A layered perovskite-type oxide ${\mathrm{Ba}}_{2}{\mathrm{RhO}}_{4}$ was synthesized by a high-pressure technique with the support of convex-hull calculations. The crystal and electronic structure were studied by both experimental and computational tools. Structural refinements for powder x-ray dif...


    [Phys. Rev. Materials 5, 015001] Published Tue Jan 26, 2021
    26 Jan 2021 at 11:00am
    Tunable wettability of polymer films by partial engulfment of nanoparticles
    by Weiteng Guo, Chongnan Ye, Gert H. ten Brink, Katja Loos, Vitaly B. Svetovoy, and George Palasantzas
    Author(s): Weiteng Guo, Chongnan Ye, Gert H. ten Brink, Katja Loos, Vitaly B. Svetovoy, and George Palasantzas

    A series of poly(methyl methacrylate) (PMMA) surfaces decorated by Cu nanoparticles (NP) with gradually varied morphology were prepared by high-pressure ${\mathrm{CO}}_{2}$ treatment at various time spans. Combining the characterizations of transmission electron microscopy (TEM) and atomic force mic...


    [Phys. Rev. Materials 5, 015604] Published Mon Jan 25, 2021
    25 Jan 2021 at 11:00am
    Stability of the peroxide group in $\mathrm{Ba}{\mathrm{O}}_{2}$ under high pressure
    by Xinyu Zhang, Xiaoshan Luo, Maxim Bykov, Elena Bykova, Irina Chuvashova, Denys Butenko, Stella Chariton, Vitali Prakapenka, Dean Smith, Hongbo Wang, Yanchao Wang, Jian Lv, and Alexander F. Goncharov
    Author(s): Xinyu Zhang, Xiaoshan Luo, Maxim Bykov, Elena Bykova, Irina Chuvashova, Denys Butenko, Stella Chariton, Vitali Prakapenka, Dean Smith, Hongbo Wang, Yanchao Wang, Jian Lv, and Alexander F. Goncharov

    Alkaline earth metal peroxides are typical examples of ionic compounds containing polyanions. We herein report a stable $\mathrm{Ba}{\mathrm{O}}_{2}$ phase at high pressure up to 130 GPa found via a first-principles computational structure search and high-pressure experimental investigations. The id...


    [Phys. Rev. B 103, 094104] Published Fri Mar 05, 2021
    5 Mar 2021 at 11:00am
    Phase coexistence at the first-order Mott transition revealed by pressure-dependent dielectric spectroscopy of $κ−(\mathrm{BEDT}−{\mathrm{TTF})}_{2}\text{−}{\mathrm{Cu}}_{2}{(\mathrm{CN})}_{3}$
    by R. Rösslhuber, A. Pustogow, E. Uykur, A. Böhme, A. Löhle, R. Hübner, J. A. Schlueter, Y. Tan, V. Dobrosavljević, and M. Dressel
    Author(s): R. Rösslhuber, A. Pustogow, E. Uykur, A. Böhme, A. Löhle, R. Hübner, J. A. Schlueter, Y. Tan, V. Dobrosavljević, and M. Dressel

    The dimer Mott insulator $κ\text{−}{(\mathrm{BEDT}\text{−}\mathrm{TTF})}_{2}{\mathrm{Cu}}_{2}{(\mathrm{CN})}_{3}$ can be tuned into metallic and superconducting states on applying pressure of 1.5 kbar and more. We have performed dielectric measurements (7.5 kHz to 5 MHz) on $κ\text{−}{(\mathrm{BEDT}...


    [Phys. Rev. B 103, 125111] Published Fri Mar 05, 2021
    5 Mar 2021 at 11:00am
    Quasi-one-dimensional magnetic properties of ${\mathrm{NiNb}}_{2−x}{\mathrm{V}}_{x}{\mathrm{O}}_{6}$ compounds synthesized at high pressure in a nonstandard columbite-type structure
    by J. Peña, M. A. Gusmão, and O. Isnard
    Author(s): J. Peña, M. A. Gusmão, and O. Isnard

    We report on the low-dimensional magnetic behavior of the series of compounds ${\mathrm{NiNb}}_{2−x}{\mathrm{V}}_{x}{\mathrm{O}}_{6}$ ($0≤x≤2$), with a columbite-type crystal structure stabilized at high pressure and temperature. Based on susceptibility, magnetization, and specific-heat measurements...


    [Phys. Rev. B 103, 094409] Published Thu Mar 04, 2021
    4 Mar 2021 at 11:00am
    Pressure-induced phase transition in the ${J}_{1}\text{−}{J}_{2}$ square lattice antiferromagnet ${\mathrm{RbMoOPO}}_{4}\mathrm{Cl}$
    by Hikaru Takeda, Touru Yamauchi, Masashi Takigawa, Hajime Ishikawa, and Zenji Hiroi
    Author(s): Hikaru Takeda, Touru Yamauchi, Masashi Takigawa, Hajime Ishikawa, and Zenji Hiroi

    We report results of magnetization and $^{31}\mathrm{P}$ NMR measurements under high pressure up to 6.4 GPa on ${\mathrm{RbMoOPO}}_{4}\mathrm{Cl}$, which is a frustrated square-lattice antiferromagnet with competing nearest-neighbor and next-nearest-neighbor interactions. Anomalies in the pressure d...


    [Phys. Rev. B 103, 104406] Published Wed Mar 03, 2021
    3 Mar 2021 at 11:00am
    Elasticity of single-crystal NaCl under high-pressure: simultaneous measurement of x-ray inelastic scattering and diffraction
    by Hiroshi Fukui
    Volume 40, Issue 4, December 2020, Page 465-477
    .

    17 Aug 2020 at 11:39am
    Melting and decomposition of orthorhombic B6Si under high pressure
    by Vladimir L. Solozhenko
    Volume 40, Issue 4, December 2020, Page 488-494
    .

    15 Oct 2020 at 11:47am
    Raman study of 3.65 Å-phase MgSi(OH)6 under high pressure and the bands assignment
    by Ulyana Borodina
    Volume 40, Issue 4, December 2020, Page 495-510
    .

    13 Oct 2020 at 7:43am
    Empirical constrains on volume changes in pressure-induced solid state transformations
    by Oliver Tschauner
    Volume 40, Issue 4, December 2020, Page 511-524
    .

    18 Sep 2020 at 4:53am
    Pressure media for high pressure experiments, Daphne Oil 7000 series
    by D. Staško
    Volume 40, Issue 4, December 2020, Page 525-536
    .

    28 Sep 2020 at 4:28am
    Challenging a range of high pressure processing parameters to inactivate pathogens in orange juice
    by Rodrigo Rodrigues Petrus
    Volume 40, Issue 4, December 2020, Page 537-542
    .

    13 Oct 2020 at 7:44am
    Optimization of antioxidant activity and bioactive compounds extraction of winter savory leaves by high hydrostatic pressure
    by Sílvia A. Moreira
    Volume 40, Issue 4, December 2020, Page 543-560
    .

    22 Oct 2020 at 6:21am
    High-pressure and high-temperature neutron-diffraction experiments using Kawai-type multi-anvil assemblies
    by Asami Sano-Furukawa
    .

    11 Jan 2021 at 5:30am
    The solubility behavior of NaCl in water at high pressure studied by neutron diffraction and Raman scattering
    by Qiwei Hu
    .

    4 Jan 2021 at 10:17am
    In situ electrical resistivity and viscosity measurements of iron alloys under pressure using synchrotron X-ray radiography
    by A. Pommier
    .

    29 Dec 2020 at 3:18am
    Pressure calibration based on the ultrasonic measurement in multi-anvil apparatus
    by Wei Song
    .

    26 Dec 2020 at 10:38am
    Preparation of SEM hydrogel samples using a high pressure water freeze fracture method
    by Hirofumi Satani
    .

    26 Dec 2020 at 10:35am
    Pressure tolerance of brine shrimp (Artemia)
    by Ryo Kitahara
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    15 Dec 2020 at 3:54am
    Clamp cells for high pressure neutron scattering at low temperatures and high magnetic fields at Heinz Maier-Leibnitz Zentrum (MLZ)
    by A. Eich
    .

    12 Nov 2020 at 7:18am