101. Peculiar magnetism and magneto-transport properties in a non-centrosymmetric self-intercalated van der Waals ferromagnet Cr5Te8
- Author
-
Rai, Banik, Kuila, Sandip Kumar, Saha, Rana, De, Chandan, Hazra, Sankalpa, Gopalan, Venkatraman, Jana, Partha Pratim, Parkin, Stuart S. P., and Kumar, Nitesh
- Subjects
Condensed Matter - Materials Science - Abstract
Trigonal Cr5Te8, a self-intercalated van der Waals ferromagnet with an out of plane magnetic anisotropy, has long been known to crystallise in a centrosymmetric structure. Through detailed structural analysis together with second harmonic generation experiments, we show that the compound actually adopts a non-centrosymmetric structure. A large anomalous Hall conductivity of 102 {\Omega}^(-1) cm^(-1) at low temperature stems from intrinsic origin, which is larger than any previously reported values in bulk Cr-Te system. In addition, we observe a hump-like feature in the field-dependent Hall resistivity data, resembling a typical topological Hall signal. We demonstrate that the feature is highly tunable and is not related to topological Hall effect even though we observe N\'eel-type skyrmions by Lorentz transmission electron microscopy which is consistent with the non-centrosymmetric structure of the compound., Comment: 26 pages, 8 Figures
- Published
- 2024