Work

Critical behavior near magnetic transition in room-temperature kagome magnet Fe3Sn2

Year: 2025

Type: article

Abstract: Fe 3 Sn 2 is a promising kagome magnet known for holding room-temperature topologically stable spin textures and exhibiting non-trivial momentum-space topology. In this work, we present field-dependent ac susceptibility measurements revealing a dip-like anomaly persisting upto ∼600 K in Fe3Sn2 single crystal, indicative of topologically stable skyrmionic excitation in the system. Additionally, a comprehensive analysis of the critical behavior near the ferromagnetic to paramagnetic phase transition was performed to estimate the critical exponents β, γ, and δ. The values are determined using multiple methods, including the modified Arrott plot, Kouvel–Fisher method, and critical isotherm analysis. The obtained values are mutually consistent and satisfy Widom’s scaling relation, confirming their reliability. Moreover, they obey the renormalized scaling hypothesis, showing a clear bifurcation in the scaling plot for T>Tc and T

Source: Journal of Applied Physics

DOI: 10.1063/5.0301511

Authors: Lipika, Sneh, Shobha Singh, Vikas Chahar, Kaustuv Manna

Institution: Indian Institute of Technology Delhi

Language: English

Topic: Theoretical and Computational Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Board of Research in Nuclear Sciences