Pressure techniques are experimental methods that apply controlled hydrostatic or uniaxial pressure to a sample to modify and probe its structural, electronic, magnetic, or thermodynamic properties. Implemented using devices such as diamond anvil cells, piston-cylinder cells, or multi-anvil presses, these techniques can generate pressures from fractions of a gigapascal to several hundred gigapascals. They are commonly coupled with in situ probes (e.g., X-ray diffraction, Raman/IR spectroscopy, electrical transport, or neutron scattering) to study phase transitions, equation-of-state behavior, bonding changes, and reaction pathways under extreme conditions relevant to condensed matter physics, materials science, and geoscience.
Researchers have uncovered a surprising phenomenon in the material BiNiO3: when subjected to high pressure at low temperatures, its well-arranged electrical charges are disrupted, leading to a disordered "charge glass" state.
Condensed Matter
Mar 17, 2025
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31
Have you ever left a bottle of liquid in the freezer, only to find it cracked or shattered? To save you from tedious freezer cleanups, researchers at the University of Amsterdam have investigated why this happens, and how ...
General Physics
Mar 14, 2025
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78
An international research project, led by The University of Warwick and the University of Lille, has used nanotube compression to transform the underlying chemistry and physics of a compound, creating a promising new one-dimensional ...
Nanophysics
Mar 6, 2025
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158
A research team led by Prof. Wang Xianlong and Dr. Wang Pei from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has discovered a concurrent negative photoconductivity (NPC) and superconductivity ...
Condensed Matter
Feb 17, 2025
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73
By combining comprehensive high-pressure measurements and first-principles calculations, a research group has discovered the pressure-induced unusual evolution of superconductivity (SC) and exotic interplay between SC and ...
Condensed Matter
Oct 15, 2024
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88
Recent findings of signatures of high-temperature superconductivity (HTSC) with Tc ≈ 80K at pressures above 14GPa in the crystals of La3Ni2O7 have attracted tremendous research interest as a new family of HTSC.
Superconductivity
Oct 9, 2024
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86
A research team led by Prof Zhang Zengming from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has combined nitrogen-vacancy (NV) centers in diamond with a diamond anvil ...
Nanomaterials
Sep 9, 2024
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70
In a paper published recently in the Journal of Applied Physics, an international team of scientists from Lawrence Livermore National Laboratory (LLNL), Argonne National Laboratory and Deutsches Elektronen-Synchrotron have ...
General Physics
Aug 28, 2024
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88
Shock experiments are widely used to understand the mechanical and electronic properties of matter under extreme conditions, like planetary impacts by meteorites. However, after the shock occurs, a clear description of the ...
Optics & Photonics
Aug 7, 2024
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106
Room-temperature superconductivity has been a century-long-held dream of scientists. Hydrogen-rich compounds at high pressures are predicted to be potential high-temperature and even room-temperature superconductors and have ...
Superconductivity
Aug 1, 2024
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143
