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Topological Magnetic Phase in the Candidate Weyl Semimetal CeAlGe

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Puphal Pascal, Pomjakushin Vladimir, Kanazawa Naoya, Ukleev Victor, Gawryluk Dariusz J., Ma Junzhang, Naamneh Muntaser, Plumb Nicholas C., Keller Lukas, Cubitt Robert, Pomjakushina Ekaterina, White Jonathan S.,
Project Discovery and Nanoengineering of Novel Skyrmion-hosting Materials
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Original article (peer-reviewed)

Journal Physical Review Letters
Volume (Issue) 124(1)
Page(s) 017202 - 017202
Title of proceedings Physical Review Letters
DOI 10.1103/physrevlett.124.017202

Open Access

Type of Open Access Publisher (Gold Open Access)


We report the discovery of topological magnetism in the candidate magnetic Weyl semimetal CeAlGe. Using neutron scattering we find this system to host several incommensurate, square-coordinated multi-(k) over right arrow magnetic phases below T-N. The topological properties of a phase stable at intermediate magnetic fields parallel to the c axis are suggested by observation of a topological Hall effect. Our findings highlight CeAlGe as an exceptional system for exploiting the interplay between the nontrivial topologies of the magnetization in real space and Weyl nodes in momentum space.