Anomalous Hall effect and magnetoresistance in microribbons of the magnetic Weyl semimetal candidate PrRhC.sub.2./sub.

0581591 - FZÚ 2024 RIV US eng J - Journal Article
Martini, M. - Reichlová, Helena - Corredor, L.T. - Kriegner, Dominik - Lee, Y. - Tomarchio, L. - Nielsch, K. - Moghaddam, A.G. - van der Brink, J. - Büchner, B. - Wurmehl, S. - Romaka, V. - Thomas, A.
Anomalous Hall effect and magnetoresistance in microribbons of the magnetic Weyl semimetal candidate PrRhC₂.
Physical Review Materials. Roč. 7, č. 10 (2023), č. článku 104205. ISSN 2475-9953. E-ISSN 2475-9953
R&D Projects: GA ČR(CZ) GM22-22000M; GA ČR(CZ) GF22-17899K
Grant - others:AV ČR(CZ) LQ100102201
Program: Prémie Lumina quaeruntur
Institutional support: RVO:68378271
Keywords : anomalous Hall effect * topological semimetal * single crystal
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevMaterials.7.104205

PrRhC2 belongs to the rare-earth carbides family, whose properties are of special interest among topological semimetals due to the simultaneous breaking of both inversion and time-reversal symmetry. The concomitant absence of both symmetries grants the possibility to tune the Weyl nodes chirality and to enhance topological effects such as the chiral anomaly. In this paper, we report on the synthesis and compare the magnetotransport measurements of polycrystalline PrRhC2 samples and a single-crystalline PrRhC2 sample. Using a remarkable and sophisticated technique, the PrRhC2 single crystal is prepared via focused-ion-beam cutting from the polycrystalline material. Our magnetometric and specific heat analyses reveal a noncollinear antiferromagnetic state below 20K, as well as short-range magnetic correlations and/or magnetic fluctuations well above the onset of the magnetic transition.

Permanent Link: https://hdl.handle.net/11104/0349690