A5015872408- Fusion materials and technologies
- Nuclear Materials and Properties
- Nuclear materials and radiation effects
- Ion-surface interactions and analysis
- Nuclear Physics and Applications
- Silicon and Solar Cell Technologies
- Organic and Molecular Conductors Research
- Boron and Carbon Nanomaterials Research
- Nuclear reactor physics and engineering
- High-Voltage Power Transmission Systems
- Acoustic Wave Resonator Technologies
- Superconductivity in MgB2 and Alloys
- Heusler alloys: electronic and magnetic properties
- Advanced materials and composites
- Inorganic Chemistry and Materials
University of Helsinki
2022-2024
Centre Européen de la Céramique
2020-2022
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2020-2022
Helsinki Institute of Physics
2022
Centre National de la Recherche Scientifique
2020
Université de Limoges
2020
Université Paris-Saclay
2020
Institut National de Physique Nucléaire et de Physique des Particules
2020
Without stray field, the antiferromagnetic material is desired in future spintronics. Based on first principle studies, we have found magnetic order of chemically modified functionalized Janus MXene VYNF$_2$...
Radiation-induced defect production in tungsten was studied by a combination of experimental and simulation methods. The analysis structural defects performed using multi-energy Rutherford backscattering spectroscopy channeling configuration (multi-energy C-RBS). To create different microstructures, (111) (W) single crystals were irradiated with W ions at two doses (0.02 0.2 dpa) 290 K. Detailed transmission electron microscopy (TEM) the samples revealed presence dislocation lines loops...
Nuclear reaction analysis (NRA-C) together with Rutherford backscattering spectrometry (RBS-C), both in a channeling configuration were used to study the location of deuterium (D) irradiation-induced defects tungsten (W) using 3He probe beam. The created by W ion irradiation at two different damage doses 0.02 and 0.2 dpa temperatures 290 K 800 K. Angular scans over 〈1 0 0〉 axial channel showed that for irradiated samples NRA yield peaks centre channel, where RBS is its minimum. For...
Atomic-scale simulations, and in particular molecular dynamics (MD), are key assets to model the behavior of structure materials under action external stimuli, say temperature, strain or stress, irradiation, etc . Despite widespread use MD condensed matter science, some basic material characteristics remain difficult determine. This is, for instance, case long-range tensor, its root-mean-squared fluctuations, disordered materials. In this work, computational diffraction is introduced as a...
Abstract As Rutherford backscattering spectrometry in channeling mode (RBS/C) is an efficient technique for characterizing crystallographic defects, its computational simulation has drawn attention over the past several decades. Recently, a RBS/C code based on binary collision approximation called arbitrary defective crystals been suggested and successfully applied to predict spectra from different damaged materials, whose structures were generated high-dose ion irradiation atomistic...
Abstract The response of Rutherford backscattering spectrometry in channeling mode through a dechanneling mechanism to the presence voids crystals has been considered be qualitatively weak. However there is lack validation its quantitative behavior. In this work, we present an investigation on induced by with different shapes tungsten based simulation approach. We observe that cross section large indeed found as product minimum yield and area projected from void target surface suggested...
The radiation-induced defect production and damage evolution in tungsten was studied by a combination of experimental simulation methods. analysis structural defects induced ion irradiation is performed using Rutherford backscattering spectroscopy channeling configuration (C-RBS) utilizing multiple probing beam energies. With this aim, the (111) single crystals were irradiated with 10.8 MeV ions at two different doses (0.02 0.2 dpa) 290 K to create microstructures material. Detailed...
Retention of hydrogen isotopes (protium, deuterium and tritium) in tungsten is one the most severe issues design fusion power plants, since significant trapping tritium may cause exceeding radioactivity safety limits future reactors. Hydrogen can be detected using nuclear reaction analysis method channeling mode (NRA/C). However, information hidden within experimental spectra subject to interpretation. In this work, we propose methodology interpret response NRA/C specific lattice locations...
Ion beams delivered by particle accelerators are routinely used to emulate harsh, radiative environments and they also constitute the foundations of modern microelectronics industry. To characterize irradiated materials, numerous experimental computational techniques can be implemented, but it is extremely diffcult effectively intertwine them, compare associated data. In present work, we an integrated, approach that uses a same set molecular dynamics simulations generate signals Rutherford...
摘要 考虑到有效钉扎势U(J)与临界电流密度的非线性关系,将U(J)展开为三级泰勒级数,最后推导出一个普遍适用于描述高温超导体磁弛豫的等温衰减方程,并用这一方程研究了具有高J_c,强钉扎的区域熔炼法制备YBa_2Cu_3O_(6+x)的磁弛豫,而且对目前被普遍采用的几个钉扎模型进行了讨论. Abstract 作者及机构信息 覃孟军2, 吉和林2, 施智祥2, 金新2, 姚希贤2, 樊占国1, 单玉桥1 (1)东北大学有色冶金学系,沈阳110006; (2)南京大学物理系,固体微结构物理国家重点实验室,南京210008 Authors and contacts Qin Meng-Jun2, Ji He-Lin2, Shi Zhi-Xiang2, Jin Xin2, Yao Xi-Xian2, Fan Zhan-Guo1, Shan Yu-Qiao1 参考文献 施引文献