{"title":"Anomalous Hall effect and topological Hall effect in Kagome lattice material Yb0.90Mn6Ge3.25Ga0.39 single crystal","authors":"","doi":"10.1016/j.scriptamat.2024.116345","DOIUrl":null,"url":null,"abstract":"<div><p>Kagome lattice, made of corner-sharing triangles, provides an excellent platform for hosting exotic topological quantum phases. Here, we report the observation of large anomalous Hall effect and topological Hall effect in the Kagome lattice material Yb<sub>0.90</sub>Mn<sub>6</sub>Ge<sub>3.25</sub>Ga<sub>0.39</sub> single crystal. Compared to the antiferromagnetic pristine compound YbMn<sub>6</sub>Ge<sub>6</sub>, Yb<sub>0.90</sub>Mn<sub>6</sub>Ge<sub>3.25</sub>Ga<sub>0.39</sub> has an easy plane ferromagnetic structure below 361 K and presents a spin-reorientation transition at 218 K. An intrinsic anomalous Hall conductivity with the value of 604.2 Ω<sup>-1</sup>·cm<sup>-1</sup> is obtained in Yb<sub>0.90</sub>Mn<sub>6</sub>Ge<sub>3.25</sub>Ga<sub>0.39</sub>, which is the largest in RMn<sub>6</sub>X<sub>6</sub> (X = Ge and Sn) family. Besides, a remarkable topological Hall signal is also observed near room temperature. The topological Hall resistivity of Yb<sub>0.90</sub>Mn<sub>6</sub>Ge<sub>3.25</sub>Ga<sub>0.39</sub> is determined to be -1.86 μΩ·cm at 280 K under <em>μ</em><sub>0</sub><em>H</em> = 0.3 T. Our results indicate that Yb<sub>0.90</sub>Mn<sub>6</sub>Ge<sub>3.25</sub>Ga<sub>0.39</sub> may be an excellent platform to study the relationship between the magnetic and electronic structure and to explore novel quantum phenomenon.</p></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scripta Materialia","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359646224003798","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
Kagome lattice, made of corner-sharing triangles, provides an excellent platform for hosting exotic topological quantum phases. Here, we report the observation of large anomalous Hall effect and topological Hall effect in the Kagome lattice material Yb0.90Mn6Ge3.25Ga0.39 single crystal. Compared to the antiferromagnetic pristine compound YbMn6Ge6, Yb0.90Mn6Ge3.25Ga0.39 has an easy plane ferromagnetic structure below 361 K and presents a spin-reorientation transition at 218 K. An intrinsic anomalous Hall conductivity with the value of 604.2 Ω-1·cm-1 is obtained in Yb0.90Mn6Ge3.25Ga0.39, which is the largest in RMn6X6 (X = Ge and Sn) family. Besides, a remarkable topological Hall signal is also observed near room temperature. The topological Hall resistivity of Yb0.90Mn6Ge3.25Ga0.39 is determined to be -1.86 μΩ·cm at 280 K under μ0H = 0.3 T. Our results indicate that Yb0.90Mn6Ge3.25Ga0.39 may be an excellent platform to study the relationship between the magnetic and electronic structure and to explore novel quantum phenomenon.
期刊介绍：
Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.
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