Effect of residual strain on magnetic properties and Hall effect in chiral antiferromagnet Mn3Sn

Autor:	J J Deng, M Y Zhao, Y Wang, X Wu, X T Niu, L Ma, D W Zhao, C M Zhen, D L Hou
Rok vydání:	2022
Předmět:	Acoustics and Ultrasonics Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials
Zdroj:	Journal of Physics D: Applied Physics. 55:275001
ISSN:	1361-6463 0022-3727
DOI:	10.1088/1361-6463/ac5da7
Popis:	Here, the effect of residual strain (RS) generated by uniaxial stress on the magnetic properties and Hall effect of polycrystalline Mn3Sn is investigated. Contrary to the role of pressure in Mn3Sn, both Hall measurements and our theoretically calculated kagome lattice distortions suggest that RS is beneficial for suppressing the magnetic transition from an inverse triangular antiferromagnetic (AFM) state to a helical AFM state. Furthermore, the topological Hall effect (THE) is observed in Mn3Sn over the entire temperature range from 5 K to 400 K due to RS. Combined with the magnetic measurements, we speculate that the THE originates from a RS-induced non-coplanar AFM structure. Our findings point out a method to realize a chiral non-coplanar AFM structure through strain engineering, thereby providing a path for the construction of topological antiferromagnets.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ad26711d18126764f1b05f4e181c5df https://doi.org/10.1088/1361-6463/ac5da7 Zobrazit plný text záznamu