Physica Status Solidi B-basic Solid State Physics最新文献

Progress in Non‐equilibrium Green's Functions VIII (PNGF VIII) 非平衡格林函数进展第八次会议（PNGF VIII）

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-15 DOI: 10.1002/pssb.202400341

Hugo U. R. Strand, Claudio Verdozzi, Michael Bonitz

引用次数: 0

Accelerating Nonequilibrium Green Functions Simulations: The G1–G2 Scheme and Beyond 加速非平衡格林函数模拟：G1-G2 方案及其他

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-15 DOI: 10.1002/pssb.202470018

Michael Bonitz, Jan‐Philip Joost, Christopher Makait, Erik Schroedter, Tim Kalsberger, Karsten Balzer

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Tip‐Enhanced Raman Spectroscopy Coherence Length of 2D Materials: An Application to Graphene 二维材料的尖端增强拉曼光谱相干长度：石墨烯的应用

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-15 DOI: 10.1002/pssb.202400287

Rafael Nadas, Raul Correa, Luiz Gustavo Cançado, Ado Jorio

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Magnetic Anisotropy of Cr2Te3: Competition between Surface and Middle Layers Cr2Te3 的磁各向异性：表层和中层之间的竞争

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-15 DOI: 10.1002/pssb.202400308

Yile Wang, Shilei Ji, Jianping Yang, Xing'ao Li

{"title":"Magnetic Anisotropy of Cr2Te3: Competition between Surface and Middle Layers","authors":"Yile Wang, Shilei Ji, Jianping Yang, Xing'ao Li","doi":"10.1002/pssb.202400308","DOIUrl":"https://doi.org/10.1002/pssb.202400308","url":null,"abstract":"Recently, the orbital coupling in 2D materials has been demonstrated to have a significant impact on the magnetic anisotropy (MA) of CrTe2. The Te atomic layers on the surface layers determine the magnetocrystalline anisotropy (MCA) of the system due to orbital coupling. Herein, is proposed to investigate the surface and middle layers of Te atoms on MA. The MCA of consists of in‐plane and out‐of‐plane components, which are contributed by the surface layer and middle layer, respectively. Due to the lack of Cr–Te–Cr chemical bonds in the z‐axis, the surface layer produces coupling and results in the in‐plane MA. In addition, a tensile strain can enhance the coupling on the middle layer and lead to the out‐of‐plane MCA. At the same time, the out‐of‐plane MCA breaks the vertical mirror symmetry and an anomalous Hall effect has been detected on monolayer (1L) . Based on this result, an anomalous Hall device is designed to record and read information. The opposing contribution of the surface and middle layers provides a completely new way to understand 2D materials.","PeriodicalId":20406,"journal":{"name":"Physica Status Solidi B-basic Solid State Physics","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253219","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: 0

Half‐Metallic Ferromagnetism in 2D Janus Monolayers: Mn2GeX (X = As, Sb) 二维杰纳斯单层中的半金属铁磁性：Mn2GeX（X = As，Sb）

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-09 DOI: 10.1002/pssb.202400340

Qiuyue Ma, Yanfeng Ge, Wenhui Wan, Guochun Yang, Yong Liu

{"title":"Half‐Metallic Ferromagnetism in 2D Janus Monolayers: Mn2GeX (X = As, Sb)","authors":"Qiuyue Ma, Yanfeng Ge, Wenhui Wan, Guochun Yang, Yong Liu","doi":"10.1002/pssb.202400340","DOIUrl":"https://doi.org/10.1002/pssb.202400340","url":null,"abstract":"Two‐dimensional (2D) Janus materials are a fascinating class of materials resulting from their unique electronic and magnetic properties induced by mirror symmetry breaking. However, 2D Janus materials with intrinsic magnetism remain rather rare, casting a mysterious veil over magnetism. In this work, the electronic and magnetic properties of Janus Mn2GeX (X = As, Sb) monolayers using the first‐principles calculations are investigated. The results demonstrate that these Janus materials exhibit excellent mechanical and dynamic stability, indicating their potential for future applications in nanoscale spintronic devices. Interestingly, the Janus and monolayers possess exciting half‐metallic character with wide half‐metallic gaps of 0.29 and 0.18 eV, and spin gaps of 1.68 and 1.62 eV, respectively. Their calculated ground state exhibits a strong preference for ferromagnetic ordering, with a Curie temperature () of 630 and 590 K, respectively. Additionally, the ferromagnetism of Janus Mn2GeX (X = As, Sb) monolayers is robust against biaxial strain ranging from −6% to 6%. Under 6% tensile strain, the calculated of the monolayer is 639 K, which represents a 9% increase compared to the observed in the unstrained condition. All these intriguing electronic and magnetic properties make the Janus Mn2GeX (X = As, Sb) monolayers an appealing candidate for applications in nanoscale spintronic devices.","PeriodicalId":20406,"journal":{"name":"Physica Status Solidi B-basic Solid State Physics","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189060","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: 0

Enhancement of Mechanical Properties of NiCo Alloy Induced by Inhomogeneous Gradient of Solute Element Segregation 非均质梯度溶质元素偏析对镍钴合金机械性能的影响

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-09 DOI: 10.1002/pssb.202400350

Di Liu, Wei Zhang, Xin Guo, Junqiang Ren, Hongtao Xue, Xuefeng Lu

{"title":"Enhancement of Mechanical Properties of NiCo Alloy Induced by Inhomogeneous Gradient of Solute Element Segregation","authors":"Di Liu, Wei Zhang, Xin Guo, Junqiang Ren, Hongtao Xue, Xuefeng Lu","doi":"10.1002/pssb.202400350","DOIUrl":"https://doi.org/10.1002/pssb.202400350","url":null,"abstract":"Inhomogeneous gradient nanocrystals have better mechanical properties than uniform gradient nanocrystals. The segregation of solute elements in inhomogeneous gradient nanocrystals is expected to induce the re‐enhancement of mechanical properties of alloys. Herein, solute element segregation structures of inhomogeneous gradient structure nanocrystalline NiCo alloy are established, simulating tensile deformation via molecular dynamics. The results show that the segregation of solute elements in the inhomogeneous gradient structure of nanocrystals can improve the mechanical properties of the alloy, especially the structure of the intragranular segregation. The intragranular segregation of solute elements induces the decrease of grain boundary energy and greatly enhances the stability of grain boundaries. In addition, the segregation of solute elements within grains can hinder the dislocation movement to a certain extent, and the hindering effect on dislocation movement of stable grain boundaries induced by intragranular segregation of solute elements further enhances the mechanical properties of nanocrystalline alloys. This strategy of combining heterogeneous gradient structure and solute element segregation structure provides a positive and interesting perspective for the design of advanced alloys with excellent properties.","PeriodicalId":20406,"journal":{"name":"Physica Status Solidi B-basic Solid State Physics","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189098","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: 0

Metalorganic Vapor‐Phase Epitaxy of +c/−c GaN Polarity Inverted Bilayer for Transverse Quasi‐Phase‐Matched Wavelength Conversion Device 用于横向准相位匹配波长转换器件的 +c/-c GaN 极性反转双层层的金属有机气相外延

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-09 DOI: 10.1002/pssb.202400161

Kazuhisa Ikeda, Shahzeb Malik, Masahiro Uemukai, Tomoyuki Tanikawa, Ryuji Katayama

{"title":"Metalorganic Vapor‐Phase Epitaxy of +c/−c GaN Polarity Inverted Bilayer for Transverse Quasi‐Phase‐Matched Wavelength Conversion Device","authors":"Kazuhisa Ikeda, Shahzeb Malik, Masahiro Uemukai, Tomoyuki Tanikawa, Ryuji Katayama","doi":"10.1002/pssb.202400161","DOIUrl":"https://doi.org/10.1002/pssb.202400161","url":null,"abstract":"Photon‐pair generation based on optical parametric down‐conversion has attracted for the application as a light source for quantum information. Highly efficient wavelength‐conversion devices require a polarity‐inversion structure when using nitride semiconductors. A transverse quasi‐phase‐matching (QPM) polarity‐inverted GaN bilayer channel waveguide device is suitable for efficient wavelength conversion. This study designed a cross‐section device to satisfy the modal dispersion phase‐matching condition between the TM02 mode pump light and the TM00 mode signal/idler light. Moreover, an AlN oxidation interlayer fabricates the Ga‐polar/N‐polar (+c/−c) GaN layers via metalorganic vapor‐phase epitaxy (MOVPE). A 145 nm thick film layer with a macro‐step‐free surface is grown by optimizing the −c‐GaN growth conditions and reducing the substrate off‐angle to 0.2°. Next, the AlN layer is oxidized in an electric furnace and MOVPE is used to regrow a 1500 nm thick +c‐GaN layer. A macrosteps‐free surface can be achieved by reducing the off‐angle to 0.2° and optimizing the −c‐GaN growth conditions to avoid hillock formation. These results pave the way for improving the efficiency of GaN transverse QPM wavelength‐conversion devices.","PeriodicalId":20406,"journal":{"name":"Physica Status Solidi B-basic Solid State Physics","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189061","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}

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Tolerance of Corundum‐Structured Tin‐Doped Indium Oxide Thin Films to Gamma‐ray Irradiation 刚玉结构掺锡氧化铟薄膜对伽马射线辐照的耐受性

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-09 DOI: 10.1002/pssb.202400368

Kazuki Shimazoe, Shunsuke Kurosawa, Hiroki Tanaka, Takushi Takata, Hiroyuki Nishinaka

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Combined Atomic Force Microscopy and Raman Spectroscopy Investigation of Fingerprints Detriment upon Liquid Exposure for Forensic Analysis 原子力显微镜和拉曼光谱联合研究法医学分析中的液体暴露对指纹的损害

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-05 DOI: 10.1002/pssb.202400333

Marco Menegazzo, Alberto Calloni, Daniele D’Ercole, Elisabetta Mei, Rossella Yivlialin, Franco Ciccacci, Lamberto Duò, Gianlorenzo Bussetti

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Structural, Mechanical, and Thermoelectric Properties of Quaternary Heusler Compounds CuCoZrZ (Z = Sn, Pb): A First‐Principles Investigation CuCoZrZ (Z = Sn, Pb) 四元 Heusler 化合物的结构、机械和热电特性：第一原理研究

IF 1.6 4区物理与天体物理

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-04 DOI: 10.1002/pssb.202400278

Tingting Lin, Qiang Gao, Jun Zhong, Suye Yu, Guodong Liu

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