Large negative magnetoresistance in the off-stoichiometric topological semimetal PrSbxTe2-x

Authors

• Gokul Acharya, University of Arkansas, FayettevilleFollow
• Krishna Pandey, University of Arkansas, FayettevilleFollow
• M. M. Sharma, University of Arkansas, Fayetteville
• Jian Wang, Wichita State University
• Santosh Karki Chhetri, University of Arkansas, Fayetteville
• Md Rafique Un Nabi, University of Arkansas, FayettevilleFollow
• Dinesh Upreti, University of Arkansas, Fayetteville
• Rabindra Basnet, University of Arkansas at Pine Bluff
• Joshua Sakon, University of Arkansas, Fayetteville
• Jin Hu, University of Arkansas, Fayetteville

Document Type

Article

Publication Date

1-24-2025

Keywords

Ultrahigh Mobility, Weyl Fermions, Transport

Abstract

Magnetic topological materials LnSbTe (Ln = lanthanide) have attracted intensive attention because of the presence of interplay between magnetism, topological, and electron correlations depending on the choices of magnetic Ln elements. Varying Sb and Te composition is an efficient approach to control structural, magnetic, and electronic properties. Here, we report on the composition-dependent properties in PrSbxTe2-x. We identified the tetragonal-to-orthorhombic structure transitions in this material system and very large negative magnetoresistance in the x = 0.3 composition, which might be ascribed to the coupling between magnetism and transport. Such unusual magnetotransport enables PrSbxTe2-x topological materials as a promising platform for device applications.

Comments

Web of Science

APS

Citation

Acharya, G., Pandey, K., Sharma, M. M., Wang, J., Chhetri, S., Nabi, M., Upreti, D., Basnet, R., Sakon, J., & Hu, J. (2025). Large negative magnetoresistance in the off-stoichiometric topological semimetal PrSbxTe2-x. Physical Review B, 111 (2) https://doi.org/10.1103/PhysRevB.111.024421