4 papers
High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors
C. Bray, S. Fretwell, L. A. Zepeda-Ruiz +30
Superconducting sensors doped with rare isotopes have recently demonstrated powerful sensing performance for sub-keV radiation from nuclear decay. Here, we report the first high-re…
Extreme Metastability of Diamond and its Transformation to BC8 Post-Diamond Phase of Carbon
Kien Nguyen-Cong, Jonathan T. Willman, Joseph M. Gonzalez +9
Diamond possesses exceptional physical properties due to its remarkably strong carbon-carbon bonding, leading to significant resilience to structural transformations at very high p…
Metal hardening in atomistic detail
Luis A. Zepeda-Ruiz, Alexander Stukowski, Tomas Oppelstrup +4
Through millennia humans exploited the natural property of metals to get stronger or hardened when mechanically deformed. Ultimately rooted in the motion of dislocations, mechanism…
Strongly Non-Arrhenius Self-Interstitial Diffusion in Vanadium
Luis A. Zepeda-Ruiz, Joerg Rottler, Seungwu Han +3
We study diffusion of self-interstitial atoms (SIAs) in vanadium via molecular dynamics simulations. The <111>-split interstitials are observed to diffuse one-dimensionally at low…