5 papers
Higher-order Weyl nodes driven by helical magnetic order in EuAgAs
Jian-Rui Soh, Ziming Zhu, Louis Withers +8
Magnetic topological semimetals provide a fertile ground for exploring how long-range magnetic order can alter electronic band structures and generate novel quasiparticles such as…
Elucidating magnetic structure with optical dopants: erbium-doped GdSiO
Luke S. Trainor, Masaya Hiraishi, J. -R. Soh +1
The narrowness of the optical transitions of rare-earth-ion dopants makes them highly sensitive probes of their environment. We measured the optical transitions Er dopants t…
Magnetic structure of EuZnSb single-crystal thin-film
Yu Wei Soh, Hsiang Lee, Eugen Weschke +4
Magnetic topological materials are a class of compounds which can host massless electrons controlled by the magnetic order. One such compound is EuZnSb, which has recently…
Nuclear quadrupole interaction and zero first-order Zeeman transitions of Er in CaWO
Lewin Marsh, Yikai Yang, Cesare Mattiroli +5
We report microwave spectroscopy of Er doped in CaWO which reveals the hyperfine splitting of the erbium electronic ground state (, =15/2)…
Goldstone mode of the broken helix in U(1) magnet EuIn2As2
Alex Liebman-Pelaez, Samuel J. Garratt, Veronika Sunko +5
Goldstone modes acquire a frequency gap in the presence of perturbations that break the underlying continuous symmetry. Here, we study the response of a spin-based Goldstone mode t…