150 citations · 1.6k across the 81 of their papers we have counts for
85 papers
Effect of Near-surface Thermal Spikes on Radiation Hardness of Gallium Oxide
Tomás Fernández Bouvier, Umutcan Bektas, Alexander Azarov +10
Gallium oxide (GaO) stands out as an extraordinary high radiation-tolerant semiconductor, because its lattice displacements induce polymorph transitions, holding materi…
Plastic Relaxation without Dislocations in -GaO Heteroepitaxy: A Structural Peculiarity of GaO Polymorphs
I. Bertoni, A. Marzegalli, A. Ugolotti +3
-GaO grows as three-dimensional islands on mismatched c-plane sapphire, often on a thin -GaO wetting layer, and eventually forms a continuous film by island c…
Coupled simulation of plasma-surface interactions during early stages of vacuum arcing
Roni Koitermaa, Andreas Kyritsakis, Tauno Tiirats +2
We describe fully coupled simulations that bridge atomistic cathode dynamics and plasma formation during the earliest stages of vacuum arcing. The model combines molecular dynamics…
A Self-Evolving Machine-Learning-Based Kinetic Monte Carlo Method for Modelling Thin-Film Growth
Jyri Kimari, Flyura Djurabekova, Kostas Sarakinos
We present a kinetic Monte Carlo (KMC) simulation framework parameterized by automatically sampling machine-learning (ML) for modeling thin-film growth atom by atom. Given an inter…
Understanding the anisotropic response of -GaO to ion implantation
Duarte Magalhães Esteves, Ru He, Sérgio Magalhães +8
While -GaO is considered a promising wide bandgap semiconductor, the impact of ion-induced defect formation and anisotropic elasticity remains poorly understood. Here, w…
Anisotropic Core-Shell Swift Heavy Ion Tracks in beta-Ga2O3
Huan He, Jiayu Liang, Shaowei He +8
Swift heavy ion (SHI) irradiation generates nanoscale ion tracks through intense electronic excitation, yet the microscopic mechanisms governing their morphology and phase stabilit…
Anisotropic Kinetics of Ion-Irradiation-Induced Phase Transition in Gallium Oxide
Taiqiao Liu, Tongtong Wang, Zeyuan Li +8
Radiation-tolerant semiconductors have traditionally been engineered by the principle of suppressing defect accumulation and amorphization, based on the assumption that radiation d…
Insights Into Radiation Damage in YBaCuO From Machine-Learned Interatomic Potentials
Ashley Dickson, Niccolò Di Eugenio, Federico Ledda +10
Accurate prediction of radiation damage in YBaCuO (YBCO) is essential for assessing the performance of high-temperature superconducting (HTS) tapes in compact fusion…
Beyond dpa: an atomistic framework for a quantitative description of radiation damage in YBa2Cu3O7
Federico Ledda, Daniele Torsello, Davide Gambino +8
Radiation damage in high-temperature cuprate superconductors represents one of the main technological challenges for their deployment in harsh environments, such as fusion reactors…
Surface-mediated reduction of ion-irradiation-induced damage in tungsten revealed by advanced ion channeling analysis
Xin Jin, Fredric Granberg, Kai Nordlund +3
Tungsten is a leading candidate material for plasma-facing components in future fusion reactors. In this work, we integrate advanced ion channeling analysis with large-scale molecu…
Machine-Learned Interatomic Potentials for Structural and Defect Properties of YBaCuO
Niccolò Di Eugenio, Ashley Dickson, Flyura Djurabekova +9
High-Temperature Superconductors (HTS) such as YBa2Cu3O7-delta (YBCO) are essential for next-generation Tokamak fusion reactors, where Rare-Earth Barium Copper Oxides (REBCO) form…
Fast machine learned interatomic potential for hydrogen-induced embrittlement in α-Fe
Eetu Makkonen, Alvaro Lopez-Cazalilla, Flyura Djurabekova
In this work, we present a machine-learned interatomic potential for the -Fe-H system based on the tabulated Gaussian Approximation Potential (tabGAP) formalism. Trained on a De…
Influence of an external static magnetic field on prebreakdown electron emission and heating
Roni Koitermaa, Marzhan Toktaganova, Andreas Kyritsakis +4
High magnetic fields can increase the occurrence of vacuum arcing, suggesting that both electric and magnetic fields can play a role in the vacuum arcing process. The mechanism of…
A General-Purpose and Efficient Machine-Learned Potential for SiC from Ambient to Extreme Environments
Jintong Wu, Zhuang Shao, Junlei Zhao +5
Silicon carbide (SiC) polymorphs are widely employed as nuclear materials, mechanical components, and wide-bandgap semiconductors. The rapid advancement of SiC-based applications h…
The diffusion-driven orthorhombic to tetragonal transition in YBaCuO derived with a machine learning interatomic potential
Davide Gambino, Niccolò Di Eugenio, Jesper Byggmästar +4
Defects in high temperature superconductors such as YBaCuO (YBCO) critically influence their superconducting behavior, as they substantially degrade or even suppress su…
Ions leaving no tracks
Azat Abdullaev, Javier Garcia Fernandez, Chloe Nozais +13
The paths of swift heavy ions are typically traceable in solids, because of confined electronic interactions along the paths, inducing what is known in literature as 'ion tracks',…
The Linear Collider Facility (LCF) at CERN
H. Abramowicz, E. Adli, F. Alharthi +406
In this paper we outline a proposal for a Linear Collider Facility as the next flagship project for CERN. It offers the opportunity for a timely, cost-effective and staged construc…
A Linear Collider Vision for the Future of Particle Physics
H. Abramowicz, E. Adli, F. Alharthi +446
In this paper we review the physics opportunities at linear colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the…
Radiation damage and phase stability of AlCrCuFeNi alloys using a machine-learned interatomic potential
Aslak Fellman, Jesper Byggmästar, Fredric Granberg +2
We develop a machine-learned interatomic potential for AlCrCuFeNi high-entropy alloys (HEA) using a diverse set of structures from density functional theory calculated including ma…
Fundamentals of Vacuum Breakdown in High-Field Systems
Walter Wuensch, Sergio Calatroni, Flyura Djurabekova +2
This review consolidates experimental, theoretical, and simulation work examining the behavior of high-field devices and the fundamental process of vacuum arc initiation, commonly…
Microtubes and nanomembranes by ion-beam-induced exfoliation of -GaO
Duarte Magalhães Esteves, Ru He, Calliope Bazioti +8
This paper reports an innovative process to fabricate -GaO microtubes and nanomembranes based on ion implantation in (100)-oriented single-crystals. We show that, un…
Nanoscale structure formation in nickel-aluminum alloys synthesized far from equilibrium
Zhehao Chen, Aslak J J Fellman, Katarzyna Mulewska +9
The present study reports on the structure formation in thin epitaxial nickel-aluminum films (Ni1-xAlx; Al atomic fraction x up to x=0.24) grown on MgO(001) substrates by magnetron…
Band Offsets at β/γ- Interface
Huan Liu, Ilja Makkonen, Calliope Bazioti +4
Ultrawide bandgap semiconductor gallium oxide (Ga2O3) and its polymorphs have recently attracted increasing attention across physics, materials science, and electronics communities…
Phase glides and self-organization of atomically abrupt interfaces out of stochastic disorder in -GaO
Alexander Azarov, Javier García Fernández, Junlei Zhao +6
Disorder-induced ordering and unprecedentedly high radiation tolerance in -phase of gallium oxide is a recent spectacular discovery at the intersection of the fundamental physic…