129 citations · 351 across the 15 of their papers we have counts for
16 papers
Achieving 5-angstrom-resolution diffraction contrast with an uncorrected electron probe and nanosized defect characterizations
Yao Li, Austin C. Houston, Ziang Yu +8
Atomic-resolution micrographs remain limited in application due to small field of view and low numbers of recorded defects. Defect imaging with reliable statistics in transmission…
Irradiation-induced amplification of electric fields at oxide interfaces as revealed by correlative DPC-STEM and DFT
Elizabeth A. Peterson, Dongye Liu, Sean H. Mills +5
Heterointerfaces are ubiquitous in modern devices, found in technologies ranging from microelectronics to structural components for energy applications. Many of these emerging tech…
Fragmenting Diffusion Pathways Confers Extraordinary Radiation Resistance in Refractory Multicomponent Alloys
Bin Xing, Bijun Xie, Wanjuan Zou +11
The accumulation and growth of vacancy clusters under irradiation is a pivotal degradation mode for structural materials in extreme environments. Even tungsten undergoes rapid defe…
The structure and migration of heavily irradiated grain boundaries and dislocations in Ni in the athermal limit
Ian Chesser, Peter M. Derlet, Avanish Mishra +6
The microstructural evolution at and near pre-existing grain boundaries (GBs) and dislocations in materials under high radiation doses is still poorly understood. In this work, we…
Grain boundary metastability controls irradiation resistance in nanocrystalline metals
Osman El-Atwani, Annie K. Barnett, Enrique Martinez +13
Grain boundaries (GBs) in polycrystalline materials are powerful sinks for irradiation defects. While standard theories assume that the sink efficiency of a grain boundary is defin…
Primary Defect Production in Doped Iron Grain Boundaries during Low Energy Collision Cascades
Yang Zhang, Blas P. Uberuaga, Enrique Martinez Saez +1
This study explores the intricate interactions between grain boundaries (GBs) and irradiation-induced defects in nanocrystalline iron, highlighting the role of dopants like copper.…
Stand-off runaway electron beam termination by tungsten particulates for tokamak disruption mitigation
Michael A. Lively, Danny Perez, Blas P. Uberuaga +2
Stand-off runaway electron termination by injected tungsten particulates offers a plausible option in the toolbox of disruption mitigation. Tungsten is an attractive material choic…
Machine learning in nuclear materials research
Dane Morgan, Ghanshyam Pilania, Adrien Couet +3
Nuclear materials are often demanded to function for extended time in extreme environments, including high radiation fluxes and transmutation, high temperature and temperature grad…
Light-driven permanent transition from insulator to conductor in Ga2O3
F. A. Selim, D. Rana, S. Agarwal +9
The transition from insulator to conductor can be achieved in some materials but requires modification of both the arrangement of atoms and their electronic configurations. This is…
Chemical manipulation of hydrogen induced high p-type and n-type conductivity in Ga2O3
Md Minhazul Islam, Maciej Oskar Liedke, David Winarski +6
Advancement of optoelectronic and high-power devices is tied to the development of wide band gap materials with excellent transport properties. However, bipolar doping (n-type and…
The conundrum of relaxation volumes in first-principles calculations of charge defects
Anuj Goyal, Kiran Mathew, Richard G. Hennig +6
The defect relaxation volumes obtained from density-functional theory (DFT) calculations of charged vacancies and interstitials are much larger than their neutral counterparts, see…
Synthesis and characterization of dense Gd2Ti2O7 pyrochlore thin films deposited using RF magnetron sputtering
Cortney R. Kreller, Rangachary Mukundan, Eric L. Brosha +5
Thin films of phase pure pyrochlore Gd2Ti2O7 have been synthesized by RF magnetron sputtering. The films were prepared from oxide targets in 50%O2/Ar atmosphere and deposited on 11…
Evidence for percolation diffusion of cations and material recovery in disordered pyrochlore from accelerated molecular dynamics simulations
Romain Perriot, Blas P. Uberuaga, Richard J. Zamora +2
We used classical and accelerated molecular dynamics simulations to characterize vacancy-mediated diffusion of cations in GdTiO pyrochlore as a function of the disorder…
Using machine learning to identify factors that govern amorphization of irradiated pyrochlores
Ghanshyam Pilania, Karl R. Whittle, Chao Jiang +4
Structure-property relationships is a key materials science concept that enables the design of new materials. In the case of materials for application in radiation environments, co…
Band-gap and Band-edge Engineering of Multicomponent Garnet Scintillators: A First-principles Study
Satyesh K. Yadav, Blas P. Uberuaga, Martin Nikl +2
Complex doping schemes in REAlO (RE=rare earth element) garnet compounds have recently led to pronounced improvements in scintillator performance. Specifically, by a…
Diffusion and transformation kinetics of small Helium clusters in bulk Tungsten
Danny Perez, Thomas Vogel, Blas P. Uberuaga
The production of energy through nuclear fusion poses serious challenges related to the stability and performance of materials in extreme conditions. In particular, the constant bo…