arXiv - PHYS - Materials Science最新文献_第2页

Growth and Spectroscopic Properties of Pr3+ Doped Lu2S3 SingleCrystals 掺杂 Pr3+ 的 Lu2S3 单晶的生长和光谱特性

arXiv - PHYS - Materials Science Pub Date : 2024-09-17 DOI: arxiv-2409.10818

Vojtech Vanecek, Vitezslav Jary, Robert Kral, Lubomir Havlak, Ales Vlk, Romana Kucerkova, Petr Prusa, Jan Barta, Martin Nikl

引用次数: 0

Exploring the relation between transonic dislocation glide and stacking fault width in FCC metals 探索催化裂化金属中跨音速位错滑行与堆叠断层宽度之间的关系

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10705

Kathryn R. Jones, Khanh Dang, Daniel N. Blaschke, Saryu J. Fensin, Abigail Hunter

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Lattice Thermal Conductivity of Sun-Graphyne from Reverse Nonequilibrium Molecular Dynamics Simulations 反向非平衡分子动力学模拟得出的太阳石墨烯晶格导热率

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10355

Isaac de Macêdo Felix, Raphael Matozo Tromer, Leonardo Dantas Machado, Douglas Soares Galvão, Luiz Antônio Ribeiro Jr, Marcelo Lopes Pereira Jr

{"title":"Lattice Thermal Conductivity of Sun-Graphyne from Reverse Nonequilibrium Molecular Dynamics Simulations","authors":"Isaac de Macêdo Felix, Raphael Matozo Tromer, Leonardo Dantas Machado, Douglas Soares Galvão, Luiz Antônio Ribeiro Jr, Marcelo Lopes Pereira Jr","doi":"arxiv-2409.10355","DOIUrl":"https://doi.org/arxiv-2409.10355","url":null,"abstract":"The thermal conductivity of two-dimensional (2D) materials is critical in\u0000determining their suitability for several applications, from electronics to\u0000thermal management. In this study, we have used Molecular Dynamics (MD)\u0000simulations to investigate the thermal conductivity and phononic properties of\u00008-16-4(Sun)-Graphyne, a recently proposed 2D carbon allotrope. The thermal\u0000conductivity was estimated using reverse non-equilibrium MD simulations\u0000following the Muuller-Plathe approach, revealing a strong dependence on system\u0000size. Phonon dispersion calculations confirm the stability of Sun-GY while also\u0000showing a significant decrease in thermal conductivity compared to graphene.\u0000This decrease is attributed to acetylenic bonds, which enhance phonon\u0000scattering. Spectral analysis further revealed that Sun-GY exhibits lower\u0000phonon group velocities and increased phonon scattering, mainly due to\u0000interactions between acoustic and optical modes. Sun-GY presents an intrinsic\u0000thermal conductivity of approximately 24.6 W/mK, much lower than graphene,\u0000making it a promising candidate for applications that require materials with\u0000reduced thermal transport properties.","PeriodicalId":501234,"journal":{"name":"arXiv - PHYS - Materials Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial spin-orbitronic effects controlled with different oxidation levels at the Co|Al interface 用不同氧化水平控制 Co|Al 界面的界面自旋轨道效应

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10685

Sachin Krishnia, Libor Vojáček, Tristan Da Câmara Santa Clara Gomes, Nicolas Sebe, Fatima Ibrahim, Jing Li, Luis Moreno Vicente-Arche, Sophie Collin, Thibaud Denneulin, Rafal E. Dunin-Borkowski, Philippe Ohresser, Nicolas Jaouen, André Thiaville, Albert Fert, Henri Jaffrès, Mairbek Chshiev, Nicolas Reyren, Vincent Cros

{"title":"Interfacial spin-orbitronic effects controlled with different oxidation levels at the Co|Al interface","authors":"Sachin Krishnia, Libor Vojáček, Tristan Da Câmara Santa Clara Gomes, Nicolas Sebe, Fatima Ibrahim, Jing Li, Luis Moreno Vicente-Arche, Sophie Collin, Thibaud Denneulin, Rafal E. Dunin-Borkowski, Philippe Ohresser, Nicolas Jaouen, André Thiaville, Albert Fert, Henri Jaffrès, Mairbek Chshiev, Nicolas Reyren, Vincent Cros","doi":"arxiv-2409.10685","DOIUrl":"https://doi.org/arxiv-2409.10685","url":null,"abstract":"Perpendicular magnetic anisotropy (PMA) and Dzyaloshinskii-Moriya\u0000interactions are key interactions in modern spintronics. These interactions are\u0000thought to be dominated by the oxidation of the Co|Al interface in the\u0000archetypal Platinum-Cobalt-Aluminum oxide system. Here, we observe a double\u0000sign change in the anisotropy and about threefold variation in interfacial\u0000chiral interaction, influenced not only by the oxidation, but also by the\u0000metallic Al thickness. Contrary to previous assumptions about negligible\u0000spin-orbit effects at light metal interfaces, we not only observe strong PMA\u0000with fully oxidized Al, decreasing and turning negative (in-plane) with less\u0000oxygen at the Co|Al interface, we also observe that the magnetic anisotropy\u0000reverts to positive (out-of-plane) values at fully metallic Co|Al interface.\u0000These findings suggest modification in Co d band via Co|Al orbital\u0000hybridization, an effect supported by X-ray absorption spectroscopy and ab\u0000initio theory calculations, highlighting the key impact of strain on\u0000interfacial mechanisms at fully metallic Co|Al interface.","PeriodicalId":501234,"journal":{"name":"arXiv - PHYS - Materials Science","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Altermagnets and beyond: Nodal magnetically-ordered phases 超磁体及其他节点磁有序相

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10034

Tomas Jungwirth, Rafael M. Fernandes, Jairo Sinova, Libor Smejkal

{"title":"Altermagnets and beyond: Nodal magnetically-ordered phases","authors":"Tomas Jungwirth, Rafael M. Fernandes, Jairo Sinova, Libor Smejkal","doi":"arxiv-2409.10034","DOIUrl":"https://doi.org/arxiv-2409.10034","url":null,"abstract":"The recent discovery of altermagnets has opened new perspectives in the field\u0000of ordered phases in condensed matter. In strongly-correlated superfluids, the\u0000nodal p-wave and d-wave ordered phases of $^{3}$He and cuprates play a\u0000prominent role in physics for their rich phenomenology of the symmetry-breaking\u0000order parameters. While the p-wave and d-wave superfluids have been extensively\u0000studied over the past half a century, material realizations of their magnetic\u0000counterparts have remained elusive for many decades. This is resolved in\u0000altermagnets, whose recent discovery was driven by research in the field of\u0000spintronics towards highly scalable information technologies. Altermagnets\u0000feature d, g or i-wave magnetic ordering, with a characteristic alternation of\u0000spin polarization and spin-degenerate nodes. Here we review how altermagnetism\u0000can be identified from symmetries of collinear spin densities in crystal\u0000lattices, and can be realized at normal conditions in a broad family of\u0000insulating and conducting materials. We highlight salient electronic-structure\u0000signatures of the altermagnetic ordering, discuss extraordinary relativistic\u0000and topological phenomena that emerge in their band structures, and comment on\u0000strong-correlation effects. We then extend the discussion to non-collinear spin\u0000densities in crystals, including the prediction of p-wave magnets, and conclude\u0000with a brief summary of the reviewed physical properties of the nodal\u0000magnetically-ordered phases.","PeriodicalId":501234,"journal":{"name":"arXiv - PHYS - Materials Science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spin-controlled Electron transport in Chiral Molecular Assemblies for Various Applications 用于各种应用的手性分子组装中的自旋控制电子传输

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10036

Ritu Gupta, Anujit Balo, Rabia Garg, Amit Kumar Mondal, Koyel Banerjee Ghosh, Prakash Chandra Mondal

{"title":"Spin-controlled Electron transport in Chiral Molecular Assemblies for Various Applications","authors":"Ritu Gupta, Anujit Balo, Rabia Garg, Amit Kumar Mondal, Koyel Banerjee Ghosh, Prakash Chandra Mondal","doi":"arxiv-2409.10036","DOIUrl":"https://doi.org/arxiv-2409.10036","url":null,"abstract":"The chirality-induced spin selectivity (CISS) effect has garnered significant\u0000interest in the field of molecular spintronics due to its potential for\u0000creating spin-polarized electrons without the need for a magnet. Recent studies\u0000devoted to CISS effects in various chiral materials demonstrate exciting\u0000prospects for spintronics, chiral recognition, and quantum information\u0000applications. Several experimental studies have confirmed the applicability of\u0000chiral molecules towards spin-filtering properties, influencing spin-polarized\u0000electron transport, and photoemission. Researchers aim to predict CISS\u0000phenomena and apply this concept to practical applications by compiling\u0000experimental results and enhancing understanding of the CISS effect. To expand\u0000the possibilities of spin manipulation and create new opportunities for\u0000spin-based technologies, researchers are diligently exploring different chiral\u0000organic and inorganic materials for probing the CISS effect. This ongoing\u0000research holds promise for developing novel spin-based technologies and\u0000advancing the understanding of the intricate relationship between chirality and\u0000electron spin. This review showcases the remarkable CISS effect and its impact\u0000on spintronics, as well as its relevance in various other scientific areas.","PeriodicalId":501234,"journal":{"name":"arXiv - PHYS - Materials Science","volume":"209 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single-atom-resolved vibrational spectroscopy of a dislocation 位错的单原子分辨振动光谱学

arXiv - PHYS - Materials Science Pub Date : 2024-09-16 DOI: arxiv-2409.10628

Hailing Jiang, Tao Wang, Zhenyu Zhang, Ruochen Shi, Xifan Xu, Bowen Sheng, Fang Liu, Weikun Ge, Ping Wang, Bo Shen, Peng Gao, Lucas R Lindsay, Xinqiang Wang

引用次数: 0

First Principles Insight into Antiperovskite c-Na3HS Solid State Electrolyte 反钝角晶 c-Na3HS 固态电解质的第一原理见解

arXiv - PHYS - Materials Science Pub Date : 2024-09-15 DOI: arxiv-2409.09690

Sananya Chakraborty, Nidhi Verma, Ashok Kumar

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First Principle Analysis of Novel Half Heusler Alloys VPdZ (Z= Ge, Sn) for thermodynamic, spintronics and optoelectronic applications 用于热力学、自旋电子学和光电子学应用的新型半 Heusler 合金 VPdZ（Z= Ge、Sn）的第一性原理分析

arXiv - PHYS - Materials Science Pub Date : 2024-09-15 DOI: arxiv-2409.09735

Ashwani Kumar, Shyam Lal Gupta, Sumit Kumar, Anupam, Diwaker

引用次数: 0

Evolution of structure, magnetism, and electronic/thermal-transports of Ti(Cr)-substituted Fe2CrV all-d-metal Heusler ferromagnets 钛（铬）取代的 Fe2CrV 全 D 金属 Heusler 铁磁体的结构、磁性和电子/热传输演变

arXiv - PHYS - Materials Science Pub Date : 2024-09-15 DOI: arxiv-2409.09718

Yiting Feng, Shen Zhang, Qingqi Zeng, Meng Lyu, Junyan Liu, Jinying Yang, Yibo Wang, Qiusa Ren, Yang Liu, Binbin Wang, Hongxiang Wei, Enke Liu

{"title":"Evolution of structure, magnetism, and electronic/thermal-transports of Ti(Cr)-substituted Fe2CrV all-d-metal Heusler ferromagnets","authors":"Yiting Feng, Shen Zhang, Qingqi Zeng, Meng Lyu, Junyan Liu, Jinying Yang, Yibo Wang, Qiusa Ren, Yang Liu, Binbin Wang, Hongxiang Wei, Enke Liu","doi":"arxiv-2409.09718","DOIUrl":"https://doi.org/arxiv-2409.09718","url":null,"abstract":"All-d-metal full-Heusler alloys possess superior mechanical properties and\u0000high spin polarization, which would play an important role in spintronic\u0000applications. Despite this, their electrical and thermal transport properties\u0000have not been comprehensively investigated till now. In this work, we present\u0000an analysis on the evolution of structural, magnetic and transport properties\u0000of Cr- and Ti-substituted Fe2CrV all-d-metal Heusler alloys by combining\u0000theoretical calculations and experiments. Both series of alloys crystallize in\u0000Hg2CuTi-type structure. With increasing Ti doping, the calculated total\u0000magnetic moments of Fe50Cr25V25-xTix decrease linearly. The experimental\u0000saturation magnetization is highly consistent with theoretical calculations and\u0000Slater-Pauling rule when x < 4, indicating the highly ordered atomic\u0000occupation. The magnetization and Curie temperature can be significantly tuned\u0000by altering spin polarizations and exchange interactions. The introduction of\u0000the foreign atom, Ti, results in a linear increase in residual resistivity,\u0000while electron-phonon scattering keeps relatively constant. The maximum values\u0000for electrical and thermal transport properties are observed in the\u0000stoichiometric Fe2CrV composition.","PeriodicalId":501234,"journal":{"name":"arXiv - PHYS - Materials Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0