| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Felser, Claudia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic materialcitations
- 20242024 roadmap on 2D topological insulatorscitations
- 2023Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d-based oxide double perovskitescitations
- 2023Ultrafast helicity-dependent photocurrents in Weyl Magnet Mn3Sncitations
- 2023Materials Informatics for the Development and Discovery of Future Magnetic Materialscitations
- 2022Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co2MnGa and Co2MnAl
- 2022Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator Sr$_2$FeO$_4$citations
- 2022Electronic structure and low-temperature thermoelectric transport of TiCoSb single crystalscitations
- 2022Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator Sr2FeO4citations
- 2021Magnetic and Electronic Properties of Weyl Semimetal Co2MnGa Thin Filmscitations
- 2021Magnetic and Electronic Properties of Weyl Semimetal Co$_{2}$MnGa Thin Filmscitations
- 2019Large resistivity reduction in mixed-valent CsAuBr3 under pressurecitations
- 2017Magnetic antiskyrmions above room temperature in tetragonal Heusler materialscitations
- 2016Superconductivity in Weyl semimetal candidate MoTe2citations
- 2016Transparent conducting oxide induced by liquid electrolyte gatingcitations
- 2015Topological states on the gold surfacecitations
- 2014Investigation of the Mn3 Ga/MgO interface for magnetic tunneling junctionscitations
- 2014Heusler nanoparticles for spintronics and ferromagnetic shape memory alloyscitations
- 2011Thermoelectric properties of spark plasma sintered composites based on TiNiSn half-Heusler alloyscitations
- 2010Investigation of the Thermoelectric Properties of LiAlSi and LiAlGecitations
- 2010Investigation of the thermoelectric properties of the series TiCo 1-x Ni x Sn x Sb 1-xcitations
- 2010Electronic structure of fully epitaxial Co2TiSn thin films
- 2010Investigation of the thermoelectric properties of LiAlSi and LiAlGecitations
- 2010Seebeck coefficients of half-metallic ferromagnetscitations
- 2008Doped semiconductors as half-metallic materials: experiments and first-principles calculations of CoTi 1- x M x Sb ( M =Sc, V, Cr, Mn, Fe)citations
Places of action
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article
Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic material
Abstract
<jats:p>In topological magnetic materials, the topology of the electronic wave function is strongly coupled to the structure of the magnetic order. In general, ferromagnetic Weyl semimetals generate a strong anomalous Hall conductivity (AHC) due to a large Berry curvature that scales with their magnetization. In contrast, a comparatively small AHC is observed in noncollinear antiferromagnets. We investigated HoAgGe, an antiferromagnetic (AFM) Kagome spin-ice compound, which crystallizes in a hexagonal ZrNiAl-type structure in which Ho atoms are arranged in a distorted Kagome lattice, forming an intermetallic Kagome spin-ice state in the<jats:italic>ab</jats:italic>-plane. It exhibits a large topological Hall resistivity of ~1.6 µΩ-cm at 2.0 K in a field of ~3 T owing to the noncoplanar structure. Interestingly, a total AHC of 2,800 Ω<jats:sup>−1</jats:sup>cm<jats:sup>−1</jats:sup>is observed at ~45 K, i.e., 4<jats:italic>T</jats:italic><jats:sub>N</jats:sub>, which is quite unusual and goes beyond the normal expectation considering HoAgGe as an AFM Kagome spin-ice compound with a<jats:italic>T</jats:italic><jats:sub>N</jats:sub>of ~11 K. We demonstrate further that the AHC below<jats:italic>T</jats:italic><jats:sub>N</jats:sub>results from the nonvanishing Berry curvature generated by the formation of Weyl points under the influence of the external magnetic field, while the skew scattering led by Kagome spins dominates above the<jats:italic>T</jats:italic><jats:sub>N</jats:sub>. These results offer a unique opportunity to study frustration in AFM Kagome lattice compounds.</jats:p>