Zobrazeno 1 - 10
of 429
pro vyhledávání: '"Nordlund, Kai"'
Refractory high-entropy alloys show promising resistance to irradiation, yet little is known about the fundamental nature of radiation-induced defect formation. Here, we simulate threshold displacement energies in equiatomic MoNbTaVW using an accurat
Externí odkaz:
http://arxiv.org/abs/2409.08030
Machine learning (ML) has become widely used in the development of interatomic potentials for molecular dynamics simulations. However, most ML potentials are still much slower than classical interatomic potentials and are usually trained with near eq
Externí odkaz:
http://arxiv.org/abs/2408.15779
Autor:
Nordlund, Kai, Kong, Fanhao, Djurabekova, Flyura, Heikinheimo, Matti, Tuominen, Kimmo, Mirabolfathi, Nader
When the detection threshold in semiconductor detectors is pushed to increasingly low energies, an ``excess" signal of apparent energy release events below a few hundred eV is observed in several different kinds of detectors, hindering their sensitiv
Externí odkaz:
http://arxiv.org/abs/2408.07518
Autor:
He, Huan, Zhao, Junlei, Byggmästar, Jesper, He, Ru, Nordlund, Kai, He, Chaohui, Djurabekova, Flyura
$\beta$ phase gallium oxide ($\beta$-$\rm Ga_2O_3$) demonstrates tremendous potential for electronics applications and offers promising prospects for integration into future space systems with the necessity of high radiation resistance. Therefore, a
Externí odkaz:
http://arxiv.org/abs/2401.14039
Autor:
Zhao, Junlei, Fernández, Javier García, Azarov, Alexander, He, Ru, Prytz, Øystein, Nordlund, Kai, Hua, Mengyuan, Djurabekova, Flyura, Kuznetsov, Andrej
Disordering of solids typically leads to amorphization, but polymorph transitions, facilitated by favorable atomic rearrangements, may temporarily help to maintain long-range periodicity in the solid state. In far-from-equilibrium situations, such as
Externí odkaz:
http://arxiv.org/abs/2401.07675
We consider dark matter velocity distributions with an anisotropic component, and analyze how the velocity structure can be probed in a solid state ionization detector with no directional detection capability using a daily modulation effect due to th
Externí odkaz:
http://arxiv.org/abs/2312.17550
Retention of hydrogen isotopes (protium, deuterium and tritium) in tungsten is one of the most severe issues in design of fusion power plants, since significant trapping of tritium may cause exceeding radioactivity safety limits in future reactors. H
Externí odkaz:
http://arxiv.org/abs/2312.09112
Autor:
Dinmohammadi, Abolfazl, Heikinheimo, Matti, Mirabolfathi, Nader, Nordlund, Kai, Safari, Hossein, Sassi, Sebastian, Tuominen, Kimmo
Low threshold detectors with single-electron excitation sensitivity to nuclear recoil events in solid-state detectors are also sensitive to the crystalline structure of the target and, therefore, to the recoil direction via the anisotropic energy thr
Externí odkaz:
http://arxiv.org/abs/2301.06592
Autor:
Zhao, Junlei, Byggmästar, Jesper, He, Huan, Nordlund, Kai, Djurabekova, Flyura, Hua, Mengyuan
Publikováno v:
npj Computational Materials 9, 159 (2023)
$\mathrm{Ga}_{2}\mathrm{O}_{3}$ is a wide-bandgap semiconductor of emergent importance for applications in electronics and optoelectronics. However, vital information of the properties of complex coexisting $\mathrm{Ga}_{2}\mathrm{O}_{3}$ polymorphs
Externí odkaz:
http://arxiv.org/abs/2212.03096
The threshold displacement energy for nuclear recoils depends strongly on the direction of the recoiling nucleus with respect to the crystal lattice. Assuming that similar dependence holds for the ionization threshold for low energy nuclear recoils,
Externí odkaz:
http://arxiv.org/abs/2210.01557