scholarly journals Anomalous Hall effect in a ferromagneticFe3Sn2single crystal with a geometrically frustrated Fe bilayer kagome lattice

2016 ◽  
Vol 94 (7) ◽  
Author(s):  
Qi Wang ◽  
Shanshan Sun ◽  
Xiao Zhang ◽  
Fei Pang ◽  
Hechang Lei
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Geometrically Frustrated

scholarly journals Giant anomalous Hall effect in a ferromagnetic kagome-lattice semimetal

2018 ◽  
Vol 14 (11) ◽  
pp. 1125-1131 ◽  
Author(s):  
Enke Liu ◽  
Yan Sun ◽  
Nitesh Kumar ◽  
Lukas Muechler ◽  
Aili Sun ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice

scholarly journals Exchange biased anomalous Hall effect driven by frustration in a magnetic kagome lattice

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Ella Lachman ◽  
Ryan A. Murphy ◽  
Nikola Maksimovic ◽  
Robert Kealhofer ◽  
Shannon Haley ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice

scholarly journals Tuning scalar spin chirality in ultrathin films of the kagome-lattice ferromagnet Fe3Sn

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Kohei Fujiwara ◽  
Yasuyuki Kato ◽  
Takeshi Seki ◽  
Kentaro Nomura ◽  
Koki Takanashi ◽  
...  
Keyword(s):  
Hall Effect ◽  
Kagome Lattice ◽  
Effect Analysis ◽  
Kagomé Lattice ◽  
Geometrically Frustrated ◽  
Surfaces And Interfaces ◽  
Topological Hall Effect ◽  
Theoretical Simulations ◽  
Thin Film Nanostructures ◽  
Moriya Interaction

AbstractNon-coplanar spin textures with finite scalar spin chirality can be artificially induced at surfaces and interfaces through the interfacial Dzyaloshinskii-Moriya interaction. However, stabilizing a proper magnetic skyrmion crystal via this route remains elusive. Here, using an epitaxial bilayer of platinum and geometrically frustrated kagome-lattice ferromagnet Fe3Sn, we show the possible formation of a two-dimensional skyrmion crystal under well-regulated Fe3Sn thickness conditions. Magnetization measurements reveal that the magnetic anisotropy is systematically varied from an inherent in-plane type to a perpendicular type with the thickness reduction. Below approximately 0.5 nm, we clearly detect a topological Hall effect that provides evidence for finite scalar spin chirality. Our topological Hall effect analysis, combined with theoretical simulations, not only establishes its interfacial Dzyaloshinskii-Moriya interaction origin, but also indicates the emergence of a stable skyrmion crystal phase, demonstrating the potential of kagome-lattice ferromagnets in spin chirality engineering using thin-film nanostructures.

scholarly journals Spin-polarized Dirac cone, flat band and saddle point in kagome magnet YMn6Sn6

2020 ◽  
Author(s):  
Man Li ◽  
Qi Wang ◽  
Guangwei Wang ◽  
Zhihong Yuan ◽  
Wenhua Song ◽  
...  
Keyword(s):  
Saddle Point ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Flat Band ◽  
Dirac Fermion ◽  
Kagome Lattice ◽  
Dirac Cone ◽  
Kagomé Lattice ◽  
Orbital Magnetism ◽  
Spin Polarized

Abstract Kagome-lattice of 3d-transition metals hosting Weyl/Dirac fermions and topological flat bands exhibit non-trivial topological characters and novel quantum phases, such as anomalous Hall effect and fractional quantum Hall effect. With consideration of spin-orbit coupling and electron correlation, several instabilities could be induced. The complete characters of the electronic structure of kagome lattice, i.e. the saddle point, Dirac-cone, and flat band, around the Fermi energy (EF) remain elusive in magnetic kagome materials. We present the first experimental observation of the complete features in ferromagnetic kagome layers of YMn6Sn6 helically coupled along the c-axis, by using angle-resolved photoemission spectroscopy and band structure calculations. We demonstrate a Dirac dispersion near EF arising from a spin-polarized orbital, which carries an intrinsic Berry curvature and contributes to the anomalous Hall effect in transport measurements. In addition, a flat band and a saddle point with a high density of states and with orbital-selective characters near EF are observed. These multi-orbital kagome features could cause multi-orbital magnetism. The Dirac fermion, flat band and saddle point in the vicinity of EF open an opportunity in manipulating the topological properties in magnetic materials.

scholarly journals Anomalous Hall effect in ferrimagnetic metal RMn6Sn6 (R = Tb, Dy, Ho) with clean Mn kagome lattice

2021 ◽  
Vol 119 (9) ◽  
pp. 092405
Author(s):  
Lingling Gao ◽  
Shiwei Shen ◽  
Qi Wang ◽  
Wujun Shi ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice

scholarly journals Anomalous Hall effect due to spin chirality in the Kagomé lattice

2006 ◽  
Vol 74 (8) ◽  
Author(s):  
M. Taillefumier ◽  
B. Canals ◽  
C. Lacroix ◽  
V. K. Dugaev ◽  
P. Bruno
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice

scholarly journals Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2

2019 ◽  
Vol 100 (16) ◽  
Author(s):  
Xuliang Chen ◽  
Maoyuan Wang ◽  
Chuanchuan Gu ◽  
Shuyang Wang ◽  
Yonghui Zhou ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Weyl Semimetal
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