Journal of Applied Physics最新文献_第6页

Effects of mosaic crystal instrument functions on x-ray Thomson scattering diagnostics 镶嵌晶体仪器功能对 X 射线汤姆逊散射诊断的影响

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0222072

Thomas Gawne, Hannah Bellenbaum, Luke B. Fletcher, Karen Appel, Carsten Baehtz, Victorien Bouffetier, Erik Brambrink, Danielle Brown, Attila Cangi, Adrien Descamps, Sebastian Goede, Nicholas J. Hartley, Marie-Luise Herbert, Philipp Hesselbach, Hauke Höppner, Oliver S. Humphries, Zuzana Konôpková, Alejandro Laso Garcia, Björn Lindqvist, Julian Lütgert, Michael J. MacDonald, Mikako Makita, Willow Martin, Mikhail Mishchenko, Zhandos A. Moldabekov, Motoaki Nakatsutsumi, Jean-Paul Naedler, Paul Neumayer, Alexander Pelka, Chongbing Qu, Lisa Randolph, Johannes Rips, Toma Toncian, Jan Vorberger, Lennart Wollenweber, Ulf Zastrau, Dominik Kraus, Thomas R. Preston, Tobias Dornheim

{"title":"Effects of mosaic crystal instrument functions on x-ray Thomson scattering diagnostics","authors":"Thomas Gawne, Hannah Bellenbaum, Luke B. Fletcher, Karen Appel, Carsten Baehtz, Victorien Bouffetier, Erik Brambrink, Danielle Brown, Attila Cangi, Adrien Descamps, Sebastian Goede, Nicholas J. Hartley, Marie-Luise Herbert, Philipp Hesselbach, Hauke Höppner, Oliver S. Humphries, Zuzana Konôpková, Alejandro Laso Garcia, Björn Lindqvist, Julian Lütgert, Michael J. MacDonald, Mikako Makita, Willow Martin, Mikhail Mishchenko, Zhandos A. Moldabekov, Motoaki Nakatsutsumi, Jean-Paul Naedler, Paul Neumayer, Alexander Pelka, Chongbing Qu, Lisa Randolph, Johannes Rips, Toma Toncian, Jan Vorberger, Lennart Wollenweber, Ulf Zastrau, Dominik Kraus, Thomas R. Preston, Tobias Dornheim","doi":"10.1063/5.0222072","DOIUrl":"https://doi.org/10.1063/5.0222072","url":null,"abstract":"Mosaic crystals, with their high integrated reflectivities, are widely employed in spectrometers used to diagnose high energy density systems. X-ray Thomson scattering (XRTS) has emerged as a powerful diagnostic tool of these systems, providing in principle direct access to important properties such as the temperature via detailed balance. However, the measured XRTS spectrum is broadened by the spectrometer instrument function (IF), and without careful consideration of the IF one risks misdiagnosing system conditions. Here, we consider in detail the IF of 40 and 100 μm mosaic Highly Annealed Pyrolytic Graphite crystals, and how the broadening varies across the spectrometer in an energy range of 6.7–8.6 keV. Notably, we find a strong asymmetry in the shape of the IF toward higher energies. As an example, we consider the effect of the asymmetry in the IF on the temperature inferred via XRTS for simulated 80 eV CH plasmas and find that the temperature can be overestimated if an approximate symmetric IF is used. We, therefore, expect a detailed consideration of the full IF will have an important impact on system properties inferred via XRTS in both forward modeling and model-free approaches.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"16 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204281","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

The high-Q THz stereo metasurface sensor based on double toroidal dipole with wide operating angle bandwidth 基于双环偶极子的高 Q 太赫兹立体元面传感器，具有宽工作角带宽

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0220850

Cong Chen, Peng Gao, Yaowei Dai, Hongzhong Cui, Xinyan Wang, Hai Liu

{"title":"The high-Q THz stereo metasurface sensor based on double toroidal dipole with wide operating angle bandwidth","authors":"Cong Chen, Peng Gao, Yaowei Dai, Hongzhong Cui, Xinyan Wang, Hai Liu","doi":"10.1063/5.0220850","DOIUrl":"https://doi.org/10.1063/5.0220850","url":null,"abstract":"A highly sensitive terahertz stereo metasurface sensor, characterized by a high quality factor (Q-factor) and based on dual toroidal dipole (TD) resonance, has been proposed. The optimal structural parameters are ascertained by comparing the pertinent parameters of the stereo and planar structures in relation to TD modal excitation. The effective excitation of the TD mode is demonstrated using the calculations of multipole scattered power, reflection spectra, surface currents, electric fields, and magnetic field distributions. It is crucial that the stereo metasurface exhibits simplicity and that the dual TD resonance can be readily excited through simple adjustments in the distance and height of the intermediate gap. It also demonstrates exceptionally high sensitivity and Q-factor, both of which are essential for sensing applications. Moreover, the proposed stereo terahertz metasurface sensor still shows excellent sensing performance in a wide range of incidence angles (±40°), which is of great significance for practical applications. In conclusion, this structure offers a novel design framework for high-performance terahertz sensors based on the TD mode.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"16 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204272","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

Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals 在铌酸锂块状单晶中可重复地制造导电铁电畴壁

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0219300

Julius Ratzenberger, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther, Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing, Lukas M. Eng

{"title":"Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals","authors":"Julius Ratzenberger, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther, Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing, Lukas M. Eng","doi":"10.1063/5.0219300","DOIUrl":"https://doi.org/10.1063/5.0219300","url":null,"abstract":"Ferroelectric domain walls (DWs) are promising structures for assembling future nano-electronic circuit elements on a larger scale since reporting domain wall currents of up to 1 mA per single DW. One key requirement hereto is their reproducible manufacturing by gaining preparative control over domain size and domain wall conductivity (DWC). To date, most works on DWC have focused on exploring the fundamental electrical properties of individual DWs within single-shot experiments, with an emphasis on quantifying the origins of DWC. Very few reports exist when it comes to comparing the DWC properties between two separate DWs, and literally nothing exists where issues of reproducibility in DWC devices have been addressed. To fill this gap while facing the challenge of finding guidelines for achieving predictable DWC performance, we report on a procedure that allows us to reproducibly prepare single hexagonal domains of a predefined diameter into uniaxial ferroelectric lithium niobate single crystals of 200 and 300 μm thickness, respectively. We show that the domain diameter can be controlled with an uncertainty of a few percent. As-grown DWs are then subjected to a standard procedure of current-limited high-voltage DWC enhancement, and they repetitively reach a DWC increase of six orders of magnitude. While all resulting DWs show significantly enhanced DWC values, their individual current–voltage (I–V) characteristics exhibit different shapes, which can be explained by variations in their 3D real structure reflecting local heterogeneities by defects, DW pinning, and surface-near DW inclination.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"46 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204279","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

Enhancing superconductivity in CoSi2 films with laser annealing 用激光退火增强 CoSi2 薄膜的超导性

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0218950

P. Dumas, F. Gustavo, M. Opprecht, G. Freychet, P. Gergaud, S. Kerdilès, S. Guillemin, J. L. Lábár, B. Pécz, F. Lefloch, F. Nemouchi

引用次数: 0

Calculation and error analysis of virtual cathode caused by a thermionic cathode 热阴极引起的虚拟阴极的计算和误差分析

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0217364

Jian-Quan Li, Shu-Han Li

引用次数: 0

Atomistic simulation on the deposition behavior of cold spray 冷喷沉积行为的原子模拟

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0218416

Jianrui Feng, Erfeng An, Wensen Zhao

{"title":"Atomistic simulation on the deposition behavior of cold spray","authors":"Jianrui Feng, Erfeng An, Wensen Zhao","doi":"10.1063/5.0218416","DOIUrl":"https://doi.org/10.1063/5.0218416","url":null,"abstract":"Cold spray is an effective method for surface coating, which has been applied in various engineering areas. However, it is difficult to directly observe the dynamic deformation process in experiments. This paper applies the molecular dynamics simulation to model the deposition of a monocrystalline Cu particle onto a Cu substrate and, subsequently, carries out a systematic study on the deposition mechanism and microstructure evolution. The results indicate that the deposition process consists of an impact stage and a relaxation stage. It is mainly the high speed collision and the friction following the collision that lead to particle deposition, which, under different circumstances, can be defined as surface deposition or penetration deposition. Two methods, namely, drastic shear deformation and cooling in the relaxation stage, can help form nanocrystallines. Jetting and melting are not the necessary factors for the deposition of nano-sized particles. The formation of dislocation lines is influenced by impact velocities. At lower impact velocities, the dislocation lines are mainly distributed near the contact surface. However, when the impact velocity is higher, dislocation lines are almost uniformly distributed in the particle.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"15 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204273","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

Comparison of ultra-low lattice thermal conductivity of the full-Heusler compound Li2Rb(Cs)Bi after considering strong quartic anharmonicity 考虑强四次谐波后全赫斯勒化合物 Li2Rb(Cs)Bi 的超低晶格热导率比较

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0219749

Qian Guo, Yinchang Zhao, Yuming Sun, Jun Ni, Zhenhong Dai

引用次数: 0

Multi-mode non-diffraction vortex beams enabled by polarization-frequency multiplexing transmissive terahertz metasurfaces 利用偏振-频率复用透射太赫兹元表面实现多模非衍射涡旋波束

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0222832

Mingzhong Wu, Xunjun He, Guangjun Lu, Zhaoxin Geng, Ying Zhang

{"title":"Multi-mode non-diffraction vortex beams enabled by polarization-frequency multiplexing transmissive terahertz metasurfaces","authors":"Mingzhong Wu, Xunjun He, Guangjun Lu, Zhaoxin Geng, Ying Zhang","doi":"10.1063/5.0222832","DOIUrl":"https://doi.org/10.1063/5.0222832","url":null,"abstract":"In terahertz (THz) wireless communication systems, non-diffraction vortex beams carrying an orbital angular momentum (OAM) have attracted extensive attention due to their ability to transmit information over long distances with high capacity. However, existing metasurfaces can only generate a single OAM mode non-diffracting vortex beam at reflection space for circular polarization (CP) incidence, limiting practical applications. To address this issue, we propose and design a polarization-frequency multiplexing transmissive THz metasurface to realize multi-mode non-diffracting vortex beams at linear polarization (LP) incidence. The meta-atom of this metasurface is composed of three anisotropic rectangular metallic structures embedded in vanadium dioxide (VO2) square rings, two circular aperture metallic grid layers, and four dielectric layers. By reasonably designing the size of the metal patch and the state of VO2, the designed metasurface can achieve polarization multiplexing and frequency multiplexing for LP incidence. Based on the phase response of the proposed meta-atoms, the transmissive metasurface can implement not only multi-mode non-diffraction vortex beams but also their space separation at two frequency ranges of 0.80–0.90 THz and 1.50–1.80 THz by changing the state of VO2. Therefore, the proposed multiple multiplexing metasurfaces can effectively shape the wavefront of non-diffraction vortex beams, which have broad application prospects in 6G THz communication.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"8 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204278","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

Electromagnetic modulating action in a microstrip cavity with embedded two detuned resonators 嵌入两个失谐谐振器的微带空腔中的电磁调制作用

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0227168

Rui Jiang, Lei Gao, Lei Yang, Wenzhe He, Jun Wang, Qian Wu, Yong Sun, Quanying Wu, Yongqiang Chen

{"title":"Electromagnetic modulating action in a microstrip cavity with embedded two detuned resonators","authors":"Rui Jiang, Lei Gao, Lei Yang, Wenzhe He, Jun Wang, Qian Wu, Yong Sun, Quanying Wu, Yongqiang Chen","doi":"10.1063/5.0227168","DOIUrl":"https://doi.org/10.1063/5.0227168","url":null,"abstract":"We present a novel approach for actively controlling electromagnetically induced transparency (EIT) analogs in a single-mode microstrip cavity. This cavity is side-coupled with a pair of varactor-loaded split-ring resonators (SRRs). The EIT-like effect is achieved through resonance hybridization between the paired SRRs with frequency detuning. The microstrip cavity is utilized to enhance the EIT-like transmission properties, including Q-factor and group delay. Varactor diodes, soldered at the gap of the SRRs, are biased electrically through a DC voltage source. This dynamic modulation setup allows for the tuning of the enhanced EIT analog. Experimental results demonstrate that the enhanced EIT-like transmission spectrum can be tuned reversibly by 378 MHz with respect to the transmission dip frequency of 2.464 GHz under the bias voltage ranging from 0 to 5 V. Simultaneously, the controlled transmission spectrum enables a remarkable change in group delay of 10.9 ns. Moreover, the modulation amplitude of the composite SRRs-cavity structure reaches a peak value of up to 34.5 dB, significantly higher than the 6.4 dB of the individual SRRs pair. These results hold promise for inspiring innovation in actively controlled photonic devices for practical applications.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"16 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204270","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

Near-infrared irradiation study of honey-mediated Au nanoparticles for photothermal therapy 用于光热疗法的蜂蜜介导金纳米粒子的近红外辐照研究

IF 3.2 3区物理与天体物理

Journal of Applied Physics Pub Date : 2024-09-09 DOI: 10.1063/5.0219146

K. Kan-Dapaah, J. A. Aidoo, B. Agyei-Tuffour, B. Mensah, A. Yaya, S. A. Abudu, S. W. K. Hatekah

引用次数: 0