Journal of Nonlinear Optical Physics & Materials最新文献_第10页

Unconventional ferrimagnetism and enhanced magnetic ordering temperature in monolayer CrCl3 by introducing O impurities and Cl vacancies 通过引入O杂质和Cl空位，提高单层CrCl3的非常规铁磁性和磁有序温度

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-15 DOI: 10.1088/2515-7639/ac5dcd

D. Mastrippolito, Jing Wang, G. Profeta, L. Ottaviano

{"title":"Unconventional ferrimagnetism and enhanced magnetic ordering temperature in monolayer CrCl3 by introducing O impurities and Cl vacancies","authors":"D. Mastrippolito, Jing Wang, G. Profeta, L. Ottaviano","doi":"10.1088/2515-7639/ac5dcd","DOIUrl":"https://doi.org/10.1088/2515-7639/ac5dcd","url":null,"abstract":"\u0000 Among chromium trihalides, a specific group of layered van der Waals magnetic materials, chromium trichloride (CrCl3) is the only system relatively stable under ambient conditions. This is also observed in reduced dimensionality where the emergence of extrinsic long-range ordered oxidized and Cl-vacancy-defective CrCl3 phases is experimentally reported. In this work, the magnetic properties of such extrinsic two-dimensional (2D) systems are studied using density functional theory (DFT) calculations, including the electron-electron (U) repulsion interactions, and Monte Carlo (MC) simulations. Once the Cl vacancies are introduced, the results indicate that the monolayer CrCl3 has a magnetic moment that is enhanced linearly (up to 3.14 μB/Cr) in the (1-10 %) vacancy concentration range. This determines a strengthening of the ferromagnetic state and a two-fold increase of the Curie temperature (up to 146 K) as valuated from MC simulations. More interestingly, once oxygen extrinsic impurities are considered, the monolayer CrCl3 structure is hybridized forming a stable ordered phase (O-CrCl3) with oxygen atoms allocated on the Cr atomic layer in the center of the honeycomb ring formed by Cr atoms. The magnetic moments of the O-CrCl3 system are localized on both Cr and O atoms, with oxygen which is antiferromagnetically coupled with chromium, resulting in a 2D ferrimagnetic hexagonal lattice system with an average magnetic moment of 2.14 μB/Cr and a high magnetic ordering temperature (110 K) predicted with DFT in the mean field approach.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"519 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76432250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 3

Deep learning modeling strategy for material science: from natural materials to metamaterials 材料科学的深度学习建模策略:从天然材料到超材料

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-28 DOI: 10.1088/2515-7639/ac5914

Wenwen Li, Pu Chen, Bo Xiong, Guandong Liu, Shuliang Dou, Yaohui Zhan, Zhiyuan Zhu, Tao Chu, Yao Li, Wei Ma

{"title":"Deep learning modeling strategy for material science: from natural materials to metamaterials","authors":"Wenwen Li, Pu Chen, Bo Xiong, Guandong Liu, Shuliang Dou, Yaohui Zhan, Zhiyuan Zhu, Tao Chu, Yao Li, Wei Ma","doi":"10.1088/2515-7639/ac5914","DOIUrl":"https://doi.org/10.1088/2515-7639/ac5914","url":null,"abstract":"Computational modeling is a crucial approach in material-related research for discovering new materials with superior properties. However, the high design flexibility in materials, especially in the realm of metamaterials where the sub-wavelength structure provides an additional degree of freedom in design, poses a formidable computational cost in various real-world applications. With the advent of big data, deep learning (DL) brings revolutionary breakthroughs in many conventional machine learning and pattern recognition tasks such as image classification. The accompanied data-driven modeling paradigm also provides transformative methodology shift in materials science, from trial-and-error routine to intelligent material discovery and analysis. This review systematically summarize the application of DL in material science, based on a model selection perspective for both natural materials and metamaterials. The review aims to uncover the logic behind data-model relation with emphasis on suitable data structures for different scenarios in the material study and the corresponding problem-solving DL model architectures.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"4 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86213038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 6

Tuning the topological band gap of bismuthene with silicon-based substrates 用硅基衬底调整铋的拓扑带隙

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-28 DOI: 10.1088/2515-7639/ac84ad

Nils Wittemeier, Pablo Ordej'on, Z. Zanolli

引用次数: 0

Mid-infrared angle-resolved spectral characteristics of photonic crystal slabs for application in surface-emitting quantum cascade lasers 用于面发射量子级联激光器的光子晶体板的中红外角分辨光谱特性

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-18 DOI: 10.1142/s0218863522500175

S. Chalimah, Yuanzhao Yao, N. Ikeda, Afshan Begum, K. Kaneko, R. Hashimoto, T. Kakuno, S. Saito, T. Kuroda, Y. Sugimoto, K. Sakoda

引用次数: 0

Synthesis and nonlinear optical study of the hybrid salt: [C12H14N2][Fe(CN)5(NO)]⋅5H2O [C12H14N2][Fe(CN)5(NO)]⋅5H2O杂化盐的合成及非线性光学研究

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-17 DOI: 10.1142/s0218863522500151

M. Zidan, M. Al-Ktaifani, M. S. El-daher, A. Allahham, A. Ghanem

引用次数: 0

Evolution of four-petal Lorentz–Gauss beams in the strongly nonlocal nonlinear media 四瓣洛伦兹-高斯光束在强非局部非线性介质中的演化

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-11 DOI: 10.1142/s0218863522500102

Nastaran Shamsodini, G. Honarasa

引用次数: 0

Analysis of size-dependent variation in nonlinear absorption coefficient of multiferroic bismuth ferrite nanoparticles synthesized at different sintering temperature 不同烧结温度合成的多铁铋铁氧体纳米颗粒非线性吸收系数随尺寸变化的分析

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-02-04 DOI: 10.1142/s0218863522500126

Imran Ahmad Salmani, Tahir Murtaza, Mohd. Saleem Khan, M. Khan

{"title":"Analysis of size-dependent variation in nonlinear absorption coefficient of multiferroic bismuth ferrite nanoparticles synthesized at different sintering temperature","authors":"Imran Ahmad Salmani, Tahir Murtaza, Mohd. Saleem Khan, M. Khan","doi":"10.1142/s0218863522500126","DOIUrl":"https://doi.org/10.1142/s0218863522500126","url":null,"abstract":"Third-order nonlinear optical property of multiferroic bismuth ferrite (BiFeO3) nanoparticles sintered at different temperatures has been studied by employing Z-Scan technique. BiFeO3 (BFO) nanoparticles (NPs) were synthesized by the sol–gel process with different sintering temperature of 823[Formula: see text]K, 923[Formula: see text]K and 1023[Formula: see text]K. XRD reveals that all samples have single-phase rhombohedral structure with R3c space group with no secondary phases present. The calculated crystallite size for samples sintered at 823[Formula: see text]K, 923[Formula: see text]K and 1023[Formula: see text]K is found to be 75[Formula: see text]nm, 87[Formula: see text]nm and 94[Formula: see text]nm, respectively. Crystal structure parameters and phase analysis of the BFO samples are obtained by the Rietveld refinement (FullProf) method. FTIR spectra show the absorbance peaks at 448[Formula: see text]cm[Formula: see text] and 533[Formula: see text]cm[Formula: see text] which confirm the synthesis of NPs. SEM images show the agglomerated spherical particles. Average crystallite and particle size of the samples are found to increase by increasing the sintering temperature. EDX verifies the constituent elements and reveals that stoichiometry in sample preparation is well-matched with the atomic ratio of the experimental quantity. The nonlinear absorption coefficient is characterized by the Z-Scan method employing continuous wave (CW) laser operating at 532[Formula: see text]nm wavelength. Nonlinear absorption coefficient ([Formula: see text]), evaluated by open aperture Z-scan data, is found to decrease with an increase in the particle size of the BFO NPs. BFO nanoparticles synthesized by optimizing the synthesis temperature can be used for the various applications of futuristic multiferroic and optical devices.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"9 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78424254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 4

Optical solitons related to (2+1)-dimensional Kundu–Mukherjee–Naskar model using an innovative integration architecture 利用创新的集成架构与(2+1)维Kundu-Mukherjee-Naskar模型相关的光学孤子

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-01-31 DOI: 10.1142/s021886352250014x

N. Raza, M. Rafiq, A. Bekir, H. Rezazadeh

引用次数: 7

Design and simulation of the all-optical XOR logic gate by XPM mechanism using photonic crystal semiconductor optical amplifier based on mach–zehnder interferometer 利用基于马赫曾德干涉仪的光子晶体半导体光放大器，设计并仿真了基于XPM机制的全光异或逻辑门

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-01-28 DOI: 10.1142/s0218863522500138

Khosro Heydarian, A. Nosratpour, M. Razaghi

{"title":"Design and simulation of the all-optical XOR logic gate by XPM mechanism using photonic crystal semiconductor optical amplifier based on mach–zehnder interferometer","authors":"Khosro Heydarian, A. Nosratpour, M. Razaghi","doi":"10.1142/s0218863522500138","DOIUrl":"https://doi.org/10.1142/s0218863522500138","url":null,"abstract":"In the presented structure, the performance of the all-optical XOR logic gate (AO-XOR-LG) is investigated. The XOR-LG is designed and simulated using a photonic crystal semiconductor optical amplifier (PC-SOA) based on Mach–Zehnder interferometer (MZI) and cross-phase modulation (XPM) nonlinear mechanism. The input optical pulse train used in this simulation is the type of RZ (Return-to-Zero). The finite difference method (FDM) has been used to solve the rate and propagation equations. The effect of input signal energy, bias current, and group refractive index on the output signal and gain of the XOR-LG is studied. The optimal mode is obtained for the XOR-LG with a bit rate of 80 Gbps. Furthermore, for the first time, the effects of quality factor (QF), conversion efficiency (CE), extinction ratio (ER), pattern effect (PE), and gain recovery are simultaneously analyzed in the simulation to increase PC-SOA performance. According to the results, PC-SOA has a more reasonable logic performance than conventional SOA, and due to its much shorter length than SOA, it can be a much better choice for integrated optical circuits.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"33 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74696480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2

Perspective: Multi-Dimensional Coherent Spectroscopy of Perovskite Nanocrystals 视角:钙钛矿纳米晶体的多维相干光谱

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-01-27 DOI: 10.1088/2515-7639/ac4fa5

A. Liu, D. Almeida, L. Padilha, S. Cundiff

引用次数: 4