Unexpected compound reformation in the dense selenium-hydrogen system
Abstract The H2Se molecule and the van der Waals compound (H2Se)2H2 are both unstable upon room temperature compression, dissociating into their constituent elements above 22 GPa. Through a series of high pressure-high temperature diamond anvil cell experiments, we report the unexpected formation of a novel compound, SeH2(H2)2 at pressures above 94 GPa. X-ray diffraction reveals the metallic […]
Order–Disorder Phase Stabilization by Pressure-Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7
Guan, Jiayi, Bihan Wang, Nana Li, Shang Peng, Ganghua Zhang, Limin Yan, Xuqiang Liu et al. “Order–Disorder Phase Stabilization by Pressure‐Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7.” Advanced Science 12, no. 42 (2025): e11022.
Order-Disorder Phase Stabilization by Pressure-Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7
Full text links Free PMC article Full text links Display options Format Abstract Multiferroic ferroelectric photovoltaic (FPV) materials, combining magnetic and ferroelectric properties, are of paramount importance for optoelectronic and photovoltaic applications. However, optimizing both the remanent polarization and the optical bandgap-key factors for enhanced FPV performance-presents a significant challenge due to their trade-off. This […]
Linking the Spin Transition of Ferric Iron in δ‐(Al,Fe)OOH to Water Storage in the Lower Mantle
V. V., Sturhahn, W., Ishii, T., Chariton, S., et al. (2025). Linking the spin transition of ferric iron in δ‐(Al,Fe)OOH to water storage in the lower mantle. Journal of Geophysical Research: Solid Earth, 130, e2025JB031715.
Order–Disorder Phase Stabilization by Pressure-Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7
Guan, Jiayi, Bihan Wang, Nana Li, Shang Peng, Ganghua Zhang, Limin Yan, Xuqiang Liu et al. “Order–Disorder Phase Stabilization by Pressure‐Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7.” Advanced Science (2025): e11022.
Deep Hydrogen Cycle Facilitated by Redox Dehydrogenation and Hydration
Zhu, F., Lai, X., Jiang, Y., Chen, B.,Chariton, S., Prakapenka, V., & Wu, X.(2025). Deep hydrogen cycle facilitated byredox dehydrogenation and hydration.Geophysical Research Letters, 52,e2025GL115820.
Thermodynamic and Kinetic Mechanisms Governing the Synthesis of Nickel-Poor Cathodes
Tiffany L. Kinnibrugh, Pallab Barai, Juan C. Garcia, Xiaoping Wang, Ozgenur Kahvecioglu, Mark Wolfman, Timothy T. Fister, Hakim H. Iddir, and Venkat Srinivasan, Reaction-Induced Fracturing of Porous Carbonate Rocks during Volume-Increasing Replacement by Witherite, Chemistry of Materials, DOI: 10.1021/acs.chemmater.5c01173.
Lithospheric origin of a diamond from the Rio Sorriso area, Mato Grosso State, Brazil
Abstract Diamonds are unique samples that enlarge our vision of the physical and chemical reactions occurring in Earth’s deep, inaccessible mantle. By investigating the minerals and fluids trapped within them, it is possible to ascertain the key conditions relevant to diamond formation, such as pressure, temperature, and oxygen fugacity. In this study, we investigated a […]
The effect of pressure on sulfur valence state in mafic silicate melts
Muth, Michelle J., and Elizabeth Cottrell. “The effect of pressure on sulfur valence state in mafic silicate melts.” Earth and Planetary Science Letters 668 (2025): 119562.
X-Ray Microtomography Measurements of Coevolving Particle Size and Shape
Li, Yang, Shubjot Singh, and Giuseppe Buscarnera. “X-Ray Microtomography Measurements of Coevolving Particle Size and Shape.” Journal of Geotechnical and Geoenvironmental Engineering 151, no. 10 (2025): 04025110.