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检索条件"机构=Institute for Structure and Function and Department of Physics"
164 条 记 录,以下是81-90 订阅
排序:
Half-Metallic Ferromagnetic Weyl Fermions Related to Dynamic Correlations in the Zinc-blende Compound VAs
arXiv
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arXiv 2024年
作者: Ding, Xianyong Jin, Xin Wei, Haoran Zhu, Ruixiang Xiao, Xiaoliang Wu, Xiaozhi Zhan, Fangyang Wang, Rui Institute for Structure and Function Department of Physics Chongqing University Chongqing400044 China Center for Quantum materials and devices Chongqing University Chongqing400044 China College of Materials Science and Engineering Chongqing Normal University Chongqing400044 China
The realization of 100% polarized topological Weyl fermions in half-metallic ferromagnets is of particular importance for fundamental research and spintronic applications. Here, we theoretically investigate the electr... 详细信息
来源: 评论
Ferromagnetic Dirac-Nodal Semimetal Phase of Stretched Chromium Dioxide
arXiv
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arXiv 2017年
作者: Wang, R. Zhao, J.Z. Jin, Y.J. Du, Y.P. Zhao, Y.X. Xu, H. Tong, S.Y. Department of Physics South University of Science and Technology of China Shenzhen518055 China Institute for Structure and Function Department of physics Chongqing University Chongqing400044 China Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian116023 China Department of Applied Physics Nanjing University of Science and Technology NanjingJiangsu210094 China Department of Physics and Center of Theoretical and Computational Physics University of Hong Kong Pokfulam Road Hong Kong Hong Kong Shenzhen518172 China
We show by first-principles calculations that the Dirac nodal-line semimetal phase can co-exist with the ferromagnetic order at room temperature in chromium dioxide, a widely used material in magnetic tape application... 详细信息
来源: 评论
Hybrid Nodal-chain Semimetal State in MgCaN2
arXiv
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arXiv 2023年
作者: Wu, Hongbo Ma, Da-Shuai Fu, Botao College of Physics Hebei Key Laboratory of Photophysics Research and Application Hebei Normal University Shijiazhuang050024 China Institute for Structure and Function & Department of Physics Chongqing University Chongqing400044 China College of Physics and Electronic Engineering Center for Computational Sciences Sichuan Normal University Chengdu610068 China
The distinct over-tilting of band crossings in topological semimetal generates the type-I and type-II classification of Dirac/Weyl and nodal-line fermions, accompanied by the exotic electronic and magnetic transport p... 详细信息
来源: 评论
Single pair of charge-2 high-fold fermions with surface type-II Van Hove singularities in ultralight chiral crystals
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Physical Review B 2024年 第16期109卷 165136-165136页
作者: Xiaoliang Xiao Yuanjun Jin Da-Shuai Ma Haoran Wei Jing Fan Rui Wang Xiaozhi Wu Institute for Structure and Function & Department of Physics Chongqing University Chongqing 400044 China Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials School of Physics South China Normal University Guangzhou 510006 China Center of Quantum Materials and Devices Chongqing University Chongqing 400044 China Center for Computational Science and Engineering Southern University of Science and Technology Shenzhen 518055 China Chongqing Key Laboratory for Strongly Coupled Physics Chongqing 400044 China
The realization of the single-pair fermions in electronic systems remains challenging in topology physics, especially for the systems with larger chiral charges C. In this work, based on the symmetry analysis, low-ene... 详细信息
来源: 评论
Three-dimensional dirac phonons with inversion symmetry
arXiv
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arXiv 2021年
作者: Chen, Z.J. Wang, R. Xia, B.W. Zheng, B.B. Jin, Y.J. Zhao, Yu-Jun Xu, H. Department of Physics South China University of Technology Guangzhou510640 China Department of Physics & Institute for Quantum Science and Engineering Southern University of Science and Technology Shenzhen518055 China Guangdong Provincial Key Laboratory of Computational Science and Material Design Southern University of Science and Technology China Institute for Structure and Function Department of physics & Center for Quantum Materials and Devices Chongqing University Chongqing400044 China
Dirac semimetals associated with bulk Dirac fermions are well-known in topological electronic systems. In sharp contrast, three-dimensional (3D) Dirac phonons in crystalline solids are still unavailable. Here we perfo... 详细信息
来源: 评论
Higher-Order Band Topology in Twisted Bilayer Kagome Lattice
arXiv
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arXiv 2024年
作者: Wan, Xiaolin Zeng, Junjie Zhu, Ruixiang Xu, Dong-Hui Zheng, Baobing Wang, Rui Institute for Structure and Function Department of Physics Chongqing University Chongqing400044 China Chongqing Key Laboratory for Strongly Coupled Physics Chongqing400044 China College of Physics and Optoelectronic Technology Baoji University of Arts and Sciences Baoji721016 China Center of Quantum Materials and Devices Chongqing University Chongqing400044 China
Topologically protected corner states serve as a key indicator for two-dimensional higher-order topological insulators, yet they have not been experimentally identified in realistic materials. Here, by utilizing the e... 详细信息
来源: 评论
In-plane canted ferromagnetism, intrinsic Weyl fermions, and large anomalous Hall effect in the kagome semimetal Rh3Sn2S2
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Physical Review B 2023年 第17期108卷 174430-174430页
作者: Meng-Xin Wu Yu-Hao Wei Da-Shuai Ma Peng Wang Nan Gao Shao-Yi Wu Min-Quan Kuang Chongqing Key Laboratory of Micro & Nano Structure Optoelectronics and School of Physical Science and Technology Southwest University Chongqing 400715 People's Republic of China Institute for Structure and Function Department of Physics and Chongqing Key Laboratory for Strongly Coupled Physics Chongqing University Chongqing 400044 People's Republic of China Center of Quantum Materials and Devices Chongqing University Chongqing 400044 People's Republic of China School of Material Science and Engineering Taizhou University Taizhou 318000 People's Republic of China Department of Applied Physics School of Physics University of Electronic Science and Technology of China Chengdu 611731 People's Republic of China
Magnetic Weyl semimetals can reveal a renowned electronic transport phenomenon, i.e., the anomalous Hall effect due to the intrinsic Berry curvature promoted by the Weyl fermions. Here, the layered kagome compound Rh3... 详细信息
来源: 评论
Strongly Ideal Robust Weyl Semimetals in Cubic Symmetry with Spatial-Inversion Breaking
arXiv
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arXiv 2017年
作者: Wang, R. Zhao, J.Z. Jin, Y.J. Xu, W.P. Gan, L.-Y. Wu, X.Z. Xu, H. Tong, S.Y. Department of Physics South University of Science and Technology of China Shenzhen518055 China Institute for Structure and Function Department of physics Chongqing University Chongqing400044 China Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian116023 China Superconductivity and New Energy R&D Center Southwest Jiaotong University ChengduSichuan610031 China Shenzhen518172 China
We show that compounds in a family that possess time-reversal symmetry and share a non-centrosymmetric cubic structure with the space group F-43m (No. 216) host robust ideal Weyl semi-metal fermions with desirable top... 详细信息
来源: 评论
Inventory of high-quality flat-band van der Waals materials
arXiv
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arXiv 2022年
作者: Duan, Jingyi Ma, Da-Shuai Zhang, Run-Wu Zhang, Zeying Cui, Chaoxi Jiang, Wei Yu, Zhi-Ming Yao, Yugui School of Physics Beijing Institute of Technology Beijing100081 China Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology Beijing100081 China Institute for Structure and Function Department of Physics Chongqing University Chongqing400044 China College of Mathematics and Physics Beijing University of Chemical Technology Beijing100029 China College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China
More is left to do in the field of flat bands besides proposing theoretical models. One unexplored area is the flat bands featured in the van der Waals (vdW) materials. Exploring more flat-band material candidates and... 详细信息
来源: 评论
Controllable Weyl nodes and Fermi arcs in a light-irradiated carbon allotrope
arXiv
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arXiv 2023年
作者: Ji, Ruoning Ding, Xianyong Zhan, Fangyang Xiao, Xiaoliang Fan, Jing Ning, Zhen Wang, Rui Institute for Structure and Function Department of Physics Chongqing Key Laboratory for Strongly Coupled Physics Chongqing University Chongqing400044 China Center for Computational Science and Engineering Southern University of Science and Technology Shenzhen518055 China Center of Quantum materials and devices Chongqing University Chongqing400044 China
The precise control of Weyl physics in realistic materials offers a promising avenue to construct accessible topological quantum systems, and thus draw widespread attention in condensed-matter physics. Here, based on ... 详细信息
来源: 评论