Artículo
Observation of an unexpected negative magnetoresistance in magnetic weyl semimetal Co3Sn2S2
Moghaddam, Ali G.; Geishendorf, Kevin; Schlitz, Richard; Facio, Jorge Ismael
; Vir, Praveen; Shekhar, Chandra; Felser, Claudia; Nielsch, Kornelius; Goennenwein, Sebastian T. B.; van den Brink, Jeroen; Thomas, Andy
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
12/2022
Editorial:
Elsevier
Revista:
Materials Today Physics
ISSN:
2542-5293
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Time-reversal symmetry breaking allows for a rich set of magneto-transport properties related to electronic topology. Focusing on the magnetic Weyl semimetal Co3Sn2S2, we prepared micro-ribbons and investigated their transverse and longitudinal transport properties from 100 K to 180 K in magnetic fields μ0H up to 2 T. We establish the presence of a magnetoresistance (MR) up to 1% with a strong anisotropy depending the projection of H on the easy-axis magnetization, which exceeds all other magnetoresistive effects. Based on detailed phenomenological modeling, we attribute the observed results with unexpected form of anisotropy to magnon MR resulting from magnon-electron coupling. Moreover, a similar angular dependence is also found in the transverse resistivity which we show to originate from the combination of ordinary Hall and anomalous Hall effects. Thus the interplay of magnetic and topological properties governs the magnetotransport features of this magnetic Weyl system.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Citación
Moghaddam, Ali G.; Geishendorf, Kevin; Schlitz, Richard; Facio, Jorge Ismael; Vir, Praveen; et al.; Observation of an unexpected negative magnetoresistance in magnetic weyl semimetal Co3Sn2S2; Elsevier; Materials Today Physics; 29; 12-2022; 1-6
Compartir
Altmétricas