Hydrogen-rich hydrate at high pressures up to 104 GPa
Alexander F. Goncharov, Elena Bykova, Iskander Batyrev, Maxim Bykov, Eric Edmund, Amol Karandikar, Mahmood Mohammad, Stella Chariton, Vitali Prakapenka, Konstantin Glazyrin, Mohamed Mezouar, Gaston Garbarino, and Jonathan Wright
Phys. Rev. Materials 9, 073601 (2025) - Published 1 July, 2025
Core energies in isolated edge and mixed dislocations in BCC Fe from first-principles energy density method
Yang Dan and Dallas R. Trinkle
Phys. Rev. Materials 9, 073602 (2025) - Published 2 July, 2025
Interaction of monoclinic grain boundaries with oxygen vacancies, Sn, and Nb: Implications for the corrosion of Zr alloy fuel cladding
M. S. Yankova and C. P. Race
Phys. Rev. Materials 9, 073603 (2025) - Published 2 July, 2025
Slip-dominated structural transitions
Kanka Ghosh, Oğuz Umut Salman, Sylvain Queyreau, and Lev Truskinovsky
Phys. Rev. Materials 9, 073604 (2025) - Published 7 July, 2025
By introducing a novel method of tracking the history of atomic-scale metric tensors in molecular dynamics, the authors uncover hidden micro-slips during pressure-induced square to hexagonal transition. The purely geometrical tessellation of the configurational space of metric tensors creates a possibility to distinguish between elastic and plastic deformations and reveals previously hidden “micro-slips” under “shuffle”, portraying a central role of lattice invariant shears in this class of phase transformation. The discovered slip-dominated mechanism during the square to hexagonal transition contains some generic elements and is expected to be common for most reconstructive transitions including the iconic BCC-HCP and FCC-HCP transitions.
Crystal structure and thermal expansion of from neutron diffraction
Matthew C. Brennan, Sven C. Vogel, and Blake T. Sturtevant
Phys. Rev. Materials 9, 073605 (2025) - Published 7 July, 2025
Effects of non-Schmid stresses on -type screw dislocation cores in -Ti
David Jany and D. C. Chrzan
Phys. Rev. Materials 9, 073606 (2025) - Published 15 July, 2025
Octahedral clustering of ions in Er: at low doping concentrations
Kristoffer Andreas Holm Støckler, Zhengtong Xue, Shukuan Guo, Jiawei Zhang, Liangbi Su, and Bo Brummerstedt Iversen
Phys. Rev. Materials 9, 073607 (2025) - Published 15 July, 2025
Revealing the interstitial-mediated sluggish diffusion mechanism in concentrated solid-solution alloys via machine learning-integrated kinetic Monte Carlo
Biao Xu, Mingxuan Jiang, Shihua Ma, Jun Zhang, Yaoxu Xiong, Shasha Huang, Xuepeng Xiang, Haijun Fu, Wenyu Lu, Huiqiu Deng, Ji-Jung Kai, and Shijun Zhao
Phys. Rev. Materials 9, 073608 (2025) - Published 17 July, 2025
Interstitial diffusion plays a crucial role in phase stability and irradiation response in concentrated solid-solution alloys (CSAs). Here, the authors integrate machine learning (ML) with kinetic Monte Carlo (kMC) to investigate interstitial-mediated diffusion in Fe–Ni CSAs. Their ML model—trained on migration barriers obtained via nudged elastic band calculations with an EAM potential—predicts barriers on-the-fly during kMC simulations. They demonstrate that sluggish diffusion emerges when reductions in the tracer correlation factor outweigh increases in jump frequency. Barrier differences among correlated migration paths form a ‘route selector’ that favors slower-diffusing species, amplifying correlation effects and suppressing jump-frequency gains. These findings apply broadly to other CSA systems.
Pressure-induced irreversible volume collapse in a high-entropy alloy
Raimundas Sereika, Caleb M. Knight, Kallol Chakrabarty, Andrew D. Pope, Dean Smith, and Yogesh K. Vohra
Phys. Rev. Materials 9, 073609 (2025) - Published 24 July, 2025







