Zobrazeno 1 - 10
of 574
pro vyhledávání: '"Berry curvature"'
Autor:
Sukriti Singh, Ana García‐Page, Jonathan Noky, Subhajit Roychowdhury, Maia G. Vergniory, Horst Borrmann, Hans‐Henning Klauss, Claudia Felser, Chandra Shekhar
Publikováno v:
Advanced Science, Vol 11, Iss 31, Pp n/a-n/a (2024)
Abstract Heusler compounds belong to a large family of materials and exhibit numerous physical phenomena with promising applications, particularly ferromagnetic Weyl semimetals for their use in spintronics and memory devices. Here, anomalous Hall tra
Externí odkaz:
https://doaj.org/article/d2f94babbfa84572bf72043ecaf900d4
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 6, Pp n/a-n/a (2024)
Abstract Layered group IV–VI compounds (i.e., SnSe, SnS, GeSe, and GeS) in the puckered structure resembling black‐phosphorene (BlackP) have attracted increasing interest because of their intriguing ferroic orders and outstanding thermoelectric p
Externí odkaz:
https://doaj.org/article/9aa3826584df4644be07430e5ee175c2
Autor:
Joonyoung Choi, Jin‐Hong Park, Wonshik Kyung, Younsik Kim, Mi Kyung Kim, Junyoung Kwon, Changyoung Kim, Jun‐Won Rhim, Se Young Park, Younjung Jo
Publikováno v:
Advanced Science, Vol 11, Iss 20, Pp n/a-n/a (2024)
Abstract The anomalous Hall conductivity (AHC) in magnetic materials, resulting from inverted band topology, has emerged as a key adjustable function in spin‐torque devices and advanced magnetic sensors. Among systems with near‐half‐metallicity
Externí odkaz:
https://doaj.org/article/b9a7f94d7bfd47a6814ce6bcb3417016
Publikováno v:
Nanomaterials, Vol 14, Iss 15, p 1295 (2024)
Two-dimensional (2D) materials have shown outstanding potential for new devices based on their interesting electrical properties beyond conventional 3D materials. In recent years, new concepts such as the valley degree of freedom have been studied to
Externí odkaz:
https://doaj.org/article/6af9bf9869ee487dacd374e4c399ac29
Autor:
Kui Meng, Zeya Li, Zhansheng Gao, Xiangyu Bi, Peng Chen, Feng Qin, Caiyu Qiu, Lingyun Xu, Junwei Huang, Jinxiong Wu, Feng Luo, Hongtao Yuan
Publikováno v:
InfoMat, Vol 6, Iss 3, Pp n/a-n/a (2024)
Abstract The anomalous Hall effect (AHE) that associated with the Berry curvature of occupied electronic states in momentum‐space is one of the intriguing aspects in condensed matter physics, and provides an alternative for potential applications i
Externí odkaz:
https://doaj.org/article/6f42b97123914c07978352696ca961dc
Autor:
Maanwinder P. Singh, Jonas Kiemle, Chen Xu, Waldemar Schmunk, Qingxin Dong, Genfu Chen, Tobias Meng, Christoph Kastl
Publikováno v:
Advanced Physics Research, Vol 3, Iss 3, Pp n/a-n/a (2024)
Abstract The quantum geometric Berry curvature results in an anomalous correction to the band velocity of crystal electrons with a corresponding transverse (thermo)electric conductivity. However, time‐reversal symmetry typically constrains the dire
Externí odkaz:
https://doaj.org/article/f73454272a9f4df79f6d9257965e0f62
Autor:
Seo‐Jin Kim, Jihang Zhu, Mario M. Piva, Marcus Schmidt, Dorsa Fartab, Andrew P. Mackenzie, Michael Baenitz, Michael Nicklas, Helge Rosner, Ashley M. Cook, Rafael González‐Hernández, Libor Šmejkal, Haijing Zhang
Publikováno v:
Advanced Science, Vol 11, Iss 6, Pp n/a-n/a (2024)
Abstract Progress in magnetoelectric materials is hindered by apparently contradictory requirements for time‐reversal symmetry broken and polar ferroelectric electronic structure in common ferromagnets and antiferromagnets. Alternative routes can b
Externí odkaz:
https://doaj.org/article/235f3ebad08c45c28be3b5cf38b32d15
Publikováno v:
AAPPS Bulletin, Vol 32, Iss 1, Pp 1-10 (2022)
Abstract Non-Hermitian quantum systems exhibit many novel physical properties of quantum states. We consider a non-Hermtian graphene model based on the tight-binding approximation with the coupling of the graphene and the substrate. We analyze the co
Externí odkaz:
https://doaj.org/article/c9eef002971a4185b37a051e8eecd1bd
Autor:
Yongqing Cai, Jianfeng Wang, Yuan Wang, Zhanyang Hao, Yixuan Liu, Liang Zhou, Xuelei Sui, Zhicheng Jiang, Shengjie Xu, Han Ge, Xiao‐Ming Ma, Chengcheng Zhang, Zecheng Shen, Yichen Yang, Qi Jiang, Zhengtai Liu, Mao Ye, Dawei Shen, Yi Liu, Shengtao Cui, Le Wang, Cai Liu, Junhao Lin, Bing Huang, Liusuo Wu, Jincheng Zhuang, Hongtao He, Wenqing Zhang, Jia‐Wei Mei, Chaoyu Chen
Publikováno v:
Advanced Electronic Materials, Vol 9, Iss 7, Pp n/a-n/a (2023)
Abstract Lorentz‐violating type‐II Dirac nodal line semimetals (DNLSs), hosting curves of band degeneracy formed by two dispersion branches with the same sign of slope, represent a novel state of matter. While being studied extensively in theory,
Externí odkaz:
https://doaj.org/article/7a566060ecc4458b92a129773bb03e5c
Publikováno v:
Applied Physics Express, Vol 17, Iss 1, p 017004 (2024)
We construct a two-dimensional mechanical wave machine based on a hexagonal lattice to investigate low-frequency flexural plate waves whose propagation mimicks a topological quantum valley Hall system. We thereby demonstrate “mechanical graphene”
Externí odkaz:
https://doaj.org/article/5965afab96a84a85889cf4fc28e738cc