Tootfinder

Three-fold Superstructured Superlattice HfN/HfAlN Thin Films for Enhanced Toughness
M. Lorentzon, R. Hahn, J. Palisaitis, H. Riedl, L. Hultman, J. Birch, N. Ghafoor
https://arxiv.org/abs/2510.00716

Three-fold Superstructured Superlattice HfN/HfAlN Thin Films for Enhanced Toughness
To simultaneously achieve high hardness and high toughness in protective coatings remains a fundamental challenge. Here, we harness the superlattice architecture to combine Koehler hardening while the coherent interfaces reduce the crack driving force and improve toughness, enabling coatings that are both hard and damage tolerant. We design and fabricate epitaxial HfN$_{1.33}$/Hf$_{0.76}$Al$_{0.24}$N$_{1.15}$ superlattices, deposited on MgO(001) substrates using low-energy, high-flux ion-assist…

Effects of Neutron Irradiation on LGADs with Broad Multiplication Layer and varied Carbon-Enriched Doses: A Study on Timing Performance and Gain Deterioration
E. Navarrete Ramos, J. Villegas, J. Duarte-Campderros, M. Fernandez, A. Gomez-Carrera, G. Gomez, J. Gonzalez, S. Hidalgo, R. Jaramillo, P. Martinez Ruiz del Arbol, A. Merlos, C. Quintana, I. Vila
https://…

Effects of Neutron Irradiation on LGADs with Broad Multiplication Layer and varied Carbon-Enriched Doses: A Study on Timing Performance and Gain Deterioration
In this radiation tolerance study, Low Gain Avalanche Detectors (LGADs) with a carbon-enriched broad and shallow multiplication layer were examined in comparison to identical non-carbonated LGADs. Manufactured at IMB-CNM, the sensors underwent neutron irradiation at the TRIGRA reactor in Ljubljana, reaching a fluence of $2.5 \times 10^{15}n_{eq}cm^{-2}$. The results revealed a smaller deactivation of Boron and improved resistance to radiation in carbonated LGADs. The study demonstrated the pote…

Effect of crystallographic texture on dealloying kinetics and composition of nanoporous gold surface
Ezgi Hatipo\u{g}lu, Ayman A. El-Zoka, Yujun Zhao, Stanislav Mr\'az, Jochen M. Schneider, Baptiste Gault, Aparna Saksena
https://arxiv.org/abs/2510.05970

Effect of crystallographic texture on dealloying kinetics and composition of nanoporous gold surface
Nanoporous metals allow for tailoring composition and surface-to-volume ratio, both aspects critical for applications in catalysis. Here, Ag70Au30 (2 at. %) films with a face-centered cubic structure were deposited at 400°C, either {111}-textured or randomly oriented. Upon chemical dealloying, atom probe tomography of the nanoporous structure reveals that the textured film retains a up to 2.7 times higher Ag concentration within the ligaments compared to the randomly oriented film that exhibit…