Magnetic Domains in Rare-earth Element Weyl Semimetals RAlX (R = Rare-earth Element, X = Si, Ge)

Coupling between magnetic textures and carriers in Weyl semimetals is of a great interest as it can produce effective axial gauge fields and induce excess carriers near the domain walls. We use scanning SQUID microscopy to investigate magnetism in RAlX Weyl semimetals. [1–3]  We report on progress of observing the dynamics of the magnetic domain walls under external magnetic field, which provides a better understanding of the interplay between local magnetic and electronic properties in Weyl systems. Successful manipulation of magnetic domains with magnetic and electric fields in Weyl materials may lead to development of new magnetic quantum devices.

 

[1]     B. Xu, et al., Advanced Quantum Technologies 4, 2000101 (2021).

[2]     B. Xu, et al., ArXiv:2105.14384 [Cond-Mat] (2021).

[3]     H.-Y. Yang, et al., Phys. Rev. B 103, 115143 (2021).