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  • Letter
  • Open Access

Effect of chirality imbalance on Hall transport of PrRhC2

Banasree Sadhukhan1,2,* and Tanay Nag3,4,†

  • 1KTH Royal Institute of Technology, AlbaNova University Center, 10691 Stockholm, Sweden
  • 2Leibniz Institute for Solid State and Materials Research (IFW) Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
  • 3Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
  • 4Institut für Theorie der Statistischen Physik, RWTH Aachen University, 52056 Aachen, Germany

  • *banasree@kth.se
  • †tanay.nag@physics.uu.se
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Phys. Rev. B 107, L081110 – Published 21 February, 2023

DOI: https://doi.org/10.1103/PhysRevB.107.L081110

Abstract

Much has been learned about the topological transport in real materials. We investigate the interplay between magnetism and topology in the magnetotransport of PrRhC2. The fourfold degeneracy reduces to twofold followed by nondegenerate Weyl nodes when the orientation of the magnetic quantization axis is changed from easy axis to body diagonal through face diagonal. This engenders chirality imbalance between positive and negative chirality Weyl nodes around the Fermi energy. We observe a significant enhancement in the chiral anomaly mediated response such as planar Hall conductivity and longitudinal magnetoconductivity, due to the emergence of chirality imbalance upon orienting the magnetic quantization axis to body diagonal. The angular variations of the above quantities for different magnetic quantization axes clearly refer to the typical signature of planar Hall effect in Weyl semimetals. We further investigate the profiles of anomalous Hall conductivities as a function of Fermi energy to explore the effects of symmetries as well as chirality imbalance on Berry curvature.

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Information

Phys. Rev. B 107, L081110– Published 21 February, 2023
  • Received 19 May 2022
  • Revised 12 December 2022
  • Accepted 10 February 2023
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