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Evolution of dislocation loops in chromium under single hydrogen and helium ion irradiation 单氢和氦离子辐照下铬中位错环的演化
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165602
Qining Zheng , Mingju Chen , Biao Chen , Shuqin Wen , Ce Zheng , Shuiqing Liu , Guanghai Bai , Jinshan Li
{"title":"Evolution of dislocation loops in chromium under single hydrogen and helium ion irradiation","authors":"Qining Zheng ,&nbsp;Mingju Chen ,&nbsp;Biao Chen ,&nbsp;Shuqin Wen ,&nbsp;Ce Zheng ,&nbsp;Shuiqing Liu ,&nbsp;Guanghai Bai ,&nbsp;Jinshan Li","doi":"10.1016/j.nimb.2024.165602","DOIUrl":"10.1016/j.nimb.2024.165602","url":null,"abstract":"<div><div>Dislocation loops, which are typical irradiation defects, can be influenced by hydrogen and helium produced by transmutation reactions. The evolution of dislocation loops in chromium (Cr) coatings under room temperature irradiation with single H<sup>+</sup> and He<sup>+</sup> is observed using transmission electron microscopy (TEM). At equivalent damage levels, the density of dislocation loops is higher under irradiation with He<sup>+</sup> compared to that with H<sup>+</sup>. This indicates that helium promotes the nucleation of dislocation loops more effectively than hydrogen does, whereas hydrogen promotes the growth of dislocation loops more, resulting in larger loop sizes. Irradiation with both hydrogen and helium ions resulted in the formation of more a<sub>0</sub> 〈100〉 dislocation loops in Cr, comprising roughly half of the total observed loops.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165602"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular dynamics investigation on crack-healing and tensile deformation mechanisms in zirconium under overlapping collision cascades 重叠碰撞级联下锆裂纹愈合和拉伸变形机制的分子动力学研究
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165608
Wei Li , Han Zhao , Xiangguo Zeng , Xing Yang , Minghua Chi , Yunpeng Gao
{"title":"Molecular dynamics investigation on crack-healing and tensile deformation mechanisms in zirconium under overlapping collision cascades","authors":"Wei Li ,&nbsp;Han Zhao ,&nbsp;Xiangguo Zeng ,&nbsp;Xing Yang ,&nbsp;Minghua Chi ,&nbsp;Yunpeng Gao","doi":"10.1016/j.nimb.2024.165608","DOIUrl":"10.1016/j.nimb.2024.165608","url":null,"abstract":"<div><div>In this work, molecular dynamics simulations were performed to investigate the interaction between the micro-crack and overlapping collision cascades in zirconium. A comprehensive analysis of the formation and recombination of irradiation defects was conducted to gain an atomic-level understanding of crack healing. Crack healing occurs when the thermal spike’s core covers the crack due to the recrystallization of atoms with high kinetic energy after the first collision cascade. We delved into the formation mechanism of vacancy dislocation loops in crack-healing Zr under overlapping collision cascades, which account for the combined effects of overlapping collision-induced vacancy collapse and recrystallization-induced vacancy migration. The uniaxial tensile deformation of crack-free and cracked Zr was extensively studied before and after irradiation. Strength enhancement was observed after crack healing, inhibiting pyramidal slipping and promoting the formation of nanotwins during the tensile process. The movement of nanotwin planes controls dislocation nucleation and movement.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165608"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparative study on the interaction behavior between Cr/Cu precipitates and dislocations in Iron 铁中Cr/Cu相与位错相互作用的比较研究
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165591
Jin Wang, Yankun Dou, Lixia Jia, Jinli Cao
{"title":"A comparative study on the interaction behavior between Cr/Cu precipitates and dislocations in Iron","authors":"Jin Wang,&nbsp;Yankun Dou,&nbsp;Lixia Jia,&nbsp;Jinli Cao","doi":"10.1016/j.nimb.2024.165591","DOIUrl":"10.1016/j.nimb.2024.165591","url":null,"abstract":"<div><div>Molecular statics (MS) simulation was applied to study the interaction between ½&lt;1 1 1&gt; screw or ½&lt;1 1 1&gt;{1 1 0} edge dislocation and pure Cr/Cu precipitates in a bcc Fe matrix. The results show that there is a repulsive interaction between Cr precipitates and both types of dislocations, but an attractive interaction for Cu precipitates. With Cr/Cu precipitates continuously approaching dislocations, edge dislocation can slip due to their interaction, screw dislocation appeared core delocalization and the emission of kink pair. In all process, Cr precipitates always maintain bcc structure, but Cu precipitates are observed to occur structure transformation. At last, the results reveal that for Cr precipitate, screw dislocations have a greater repulsive force than edge dislocations, while for Cu precipitate, edge dislocations have a greater pinning force than screw dislocations.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165591"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calcium sulfate targets for PIGE/PIXE standardization ex vacuo PIGE/ pxie真空标准化硫酸钙指标
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165594
Anthony M. Miller , Yukun Jin , Gunnar M. Brown , Kyle Taft , Jerome Gan , Dan Baudendistel , Graham F. Peaslee
{"title":"Calcium sulfate targets for PIGE/PIXE standardization ex vacuo","authors":"Anthony M. Miller ,&nbsp;Yukun Jin ,&nbsp;Gunnar M. Brown ,&nbsp;Kyle Taft ,&nbsp;Jerome Gan ,&nbsp;Dan Baudendistel ,&nbsp;Graham F. Peaslee","doi":"10.1016/j.nimb.2024.165594","DOIUrl":"10.1016/j.nimb.2024.165594","url":null,"abstract":"<div><div>PIGE and PIXE analyses rely on the use of standard materials for detector calibration and data normalization. An inexpensive and rapid technique for producing calcium sulfate dihydrate-based target materials with homogeneously-dispersed trace elements is presented. These calcium sulfate targets, spiked with fluorine and several other elements from first-row transition metals, are shown to be robust and reproducible standard materials for <em>ex vacuo</em> surface analysis. Background trace elements present in the bulk material along with limits of detection for various elements are provided. Comparisons between predicted yields based on the target making process and experimental results are provided using a 50–100 nA, 3.5 MeV proton beam.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165594"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of UC2, UC, UBC and UB2 target compositions on the release of fission products UC2、UC、UBC和UB2靶成分对裂变产物释放的影响
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165600
Julien Guillot , Brigitte Roussière , Sandrine Tusseau-Nenez , Isabelle Deloncle , Martin Humenny , Matthieu Lebois , Jean-François Ledu , Jérome Roques , François Brisset
{"title":"Impact of UC2, UC, UBC and UB2 target compositions on the release of fission products","authors":"Julien Guillot ,&nbsp;Brigitte Roussière ,&nbsp;Sandrine Tusseau-Nenez ,&nbsp;Isabelle Deloncle ,&nbsp;Martin Humenny ,&nbsp;Matthieu Lebois ,&nbsp;Jean-François Ledu ,&nbsp;Jérome Roques ,&nbsp;François Brisset","doi":"10.1016/j.nimb.2024.165600","DOIUrl":"10.1016/j.nimb.2024.165600","url":null,"abstract":"<div><div>The release properties of 4 targets (UC<sub>2</sub>, UC, UBC, UB<sub>2</sub>) were measured for 11 elements (Kr, Sr, Ru, Sn, Sb, Te, I, Cs, Ba, La, and Ce) using an off-line technique. The crystal packing fraction and the size of the studied element play a key role in the release process. However, physicochemical properties are also involved, notably melting and boiling points in vacuum and the minimal oxidation state. Principal component analysis was used to investigate the interrelationships between the physicochemical properties of fission products (from Fe to Dy) and the observed releases, thereby enabling predictions to be made about the release properties of the four crystallic configurations for elements that are inaccessible in off-line experiments.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165600"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computational simulation of primary damage in silicon carbide under ions irradiation 离子辐照下碳化硅初损伤的计算模拟
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165597
Jianyang Li , Yitao Yang , Tieshan Wang , Chonghong Zhang
{"title":"Computational simulation of primary damage in silicon carbide under ions irradiation","authors":"Jianyang Li ,&nbsp;Yitao Yang ,&nbsp;Tieshan Wang ,&nbsp;Chonghong Zhang","doi":"10.1016/j.nimb.2024.165597","DOIUrl":"10.1016/j.nimb.2024.165597","url":null,"abstract":"<div><div>Silicon carbide (SiC) and its composites are promising structural materials for advanced nuclear energy applications. Due to the lack of advanced nuclear energy devices, ion beam irradiation is widely used to emulate reactor neutron irradiation. At the same time, different types of ion beam irradiation could produce different primary knock-on atom (PKA) energy spectra. PKA energy determines cascade damage sizes and defect clustering distributions, which may influence the irradiated materials’ long-term microstructural evolution and mechanical properties. This work used SRIM and Geant4 software to investigate the PKA characteristic produced by 1 MeV different noble gas ions and neutrons in the silicon carbide. The PKA energy spectra and weighted energy spectra of C and Si are calculated, respectively. The simulation results show that the PKA energy spectra calculated by the two kinds of software have obvious differences, but the weighted average PKA energies are close to each other. Simulation results verified that the weighted average PKA energy of Kr and Xe ion irradiation is close to that weighted average PKA energy spectrum for neutron irradiation of advanced reactors. The simulation results provide scientific references for understanding the difference in irradiation effects of different types of ions and also provide fundamental bases for the simulation of primary defect damage and long-term defect evolution in irradiated SiC.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165597"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stopping cross section measurement for He+ in SiO2 with two angles of incidence in medium energy ion scattering spectrometry 中能离子散射光谱法中SiO2中He+的双入射角停止截面测量
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165598
SungYup An , Chang Seon Park , Ji Ho Song , Kyungsu Park , Kyu-Sang Yu , Cheolho Jeon , Won Ja Min
{"title":"Stopping cross section measurement for He+ in SiO2 with two angles of incidence in medium energy ion scattering spectrometry","authors":"SungYup An ,&nbsp;Chang Seon Park ,&nbsp;Ji Ho Song ,&nbsp;Kyungsu Park ,&nbsp;Kyu-Sang Yu ,&nbsp;Cheolho Jeon ,&nbsp;Won Ja Min","doi":"10.1016/j.nimb.2024.165598","DOIUrl":"10.1016/j.nimb.2024.165598","url":null,"abstract":"<div><div>Ion-scattering spectrometry is a technique used to obtain compositional depth profiles by bombarding a sample with accelerated ions and analyzing the scattered particle energy. To obtain the depth profile from the ion-scattering spectra, simulations are usually performed using kinematic factors, scattering cross sections, stopping cross sections, and straggling, and accurate values are required for accurate analysis. This study proposes a method for obtaining stopping cross sections for pre- and post-collision energies by measuring the ion scattering spectra at the same scattering angle and at two different incident angles. Using this method, the stopping cross sections for He<sup>+</sup> in SiO<sub>2</sub> below 100 keV were measured.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165598"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UVC irradiation of alpha particles tracks and empirical equation of bulk etch rate in CR-39 detector CR-39探测器中α粒子的UVC辐照轨迹及体蚀速率的经验方程
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165596
Mushtaq Abed Al-Jubbori , R.B. Alkhayat , Mohsin Hassan Ali , Rasha W. Mahmood
{"title":"UVC irradiation of alpha particles tracks and empirical equation of bulk etch rate in CR-39 detector","authors":"Mushtaq Abed Al-Jubbori ,&nbsp;R.B. Alkhayat ,&nbsp;Mohsin Hassan Ali ,&nbsp;Rasha W. Mahmood","doi":"10.1016/j.nimb.2024.165596","DOIUrl":"10.1016/j.nimb.2024.165596","url":null,"abstract":"<div><div>The first empirical equation is presented in this paper to characterize the behavior of the bulk etch rate (V<em><sub>b</sub></em>) with the UVC dose. The V<em><sub>b</sub></em> value increased nonlinearly with UVC irradiation during the initial dose of up to 13 J, then remained almost constant with prolonged UVC doses from 13 to 45 J. The alpha track depths in CR-39 were analyzed with UVC irradiation (<em>λ</em> = 254 nm). Samples exposed to UVC radiation achieved the maximum track depth with a shorter etching time than samples not exposed to UVC radiation. The V<em><sub>t</sub></em> values increased significantly for samples exposed to UVC up to 7.1, 7.0, and 6.9 µm/h, respectively, at alpha energies of 2.5, 3.5, and 4.5 MeV. While the etch rate ratio decreased for the same samples.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165596"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elemental analysis of automobile engine lubrication oil using in-air PIXE 汽车发动机润滑油在空气中的元素分析
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165601
Katsumi Saitoh , Hidetsugu Tsuchida , Misako Miwa , Sho Toyama , Shigeo Matsuyama
{"title":"Elemental analysis of automobile engine lubrication oil using in-air PIXE","authors":"Katsumi Saitoh ,&nbsp;Hidetsugu Tsuchida ,&nbsp;Misako Miwa ,&nbsp;Sho Toyama ,&nbsp;Shigeo Matsuyama","doi":"10.1016/j.nimb.2024.165601","DOIUrl":"10.1016/j.nimb.2024.165601","url":null,"abstract":"<div><div>To identify the elemental characteristics of engine lubricating oil-derived particles emitted from automobiles, we established an elemental analysis technique for engine lubricating oils using the in-air PIXE method, and conducted elemental analysis of unused and used engine lubrication oils, which revealed that S and Ca found in the internal standard base oil Sc 2000 wt-ppm (CONOSTAN®) and In 1000 wt-ppm (CONOSTAN®) were detected in addition to P, Fe and Zn, while K was detected only in the unused engine oil. The concentration balance of P, S, and Zn in the unused and used engine oil confirmed the presence of zinc dialkyldithiophosphate (ZnDTP), which is added to engine lubricating oil as a friction modifier and antioxidant. These results are useful in characterizing the elemental composition of particles derived from engine lubricating oils.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165601"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of thermal neutron irradiation on CoLaxFe2-xO4 nanoferrites: XRD, FTIR, UV, and VSM spectroscopy 热中子辐照对CoLaxFe2-xO4纳米铁氧体的影响：XRD， FTIR， UV和VSM光谱
IF 1.4 3区 物理与天体物理
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-01 DOI: 10.1016/j.nimb.2024.165592
Kh. Roumaih , H.A. Aboelkhir , T.M. Meaz , A.I. Ghoneim
{"title":"Effect of thermal neutron irradiation on CoLaxFe2-xO4 nanoferrites: XRD, FTIR, UV, and VSM spectroscopy","authors":"Kh. Roumaih ,&nbsp;H.A. Aboelkhir ,&nbsp;T.M. Meaz ,&nbsp;A.I. Ghoneim","doi":"10.1016/j.nimb.2024.165592","DOIUrl":"10.1016/j.nimb.2024.165592","url":null,"abstract":"<div><div>Cobalt-lanthanum ferrite nanoparticles with the formula CoLa<sub>x</sub>Fe<sub>2-x</sub>O<sub>4</sub> (x = 0.0 and 0.06) were prepared using the co-precipitation method. The structural and physical properties were studied before and after exposure to thermal neutrons. The samples were irradiated at different times and doses using a rabbit system. X-ray powder diffraction (XRD) analysis showed the formation of the cubic spinel phase both before and after irradiation. The cation distribution for all samples was calculated based on the theoretical lattice parameters before and after irradiation. The FTIR spectra revealed two bands, ν<sub>T</sub> (580–571 cm<sup>−1</sup> for x = 0, and 585–575 cm<sup>−1</sup> for x = 0.06) and ν<sub>O</sub> (386–359 cm<sup>−1</sup> for x = 0, and 383–376 cm<sup>−1</sup> for x = 0.06). These bands became broader after irradiation. UV spectroscopy indicated that the increase in energy gap is mainly due to the decrease in particle size caused by the quantum confinement size effect. Vibrating Sample Magnetometer (VSM) measurements at room temperature showed ferrimagnetic behavior for all samples. It was observed that the magnetic properties depended on the radiation dosage.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"559 ","pages":"Article 165592"},"PeriodicalIF":1.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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