Magnetic order and crystalline electric field excitations of the quantum critical heavy fermion ferromagnet CeRh$_6$Ge$_4$

no code implementations • 25 Feb 2021 • J. W. Shu, D. T. Adroja, A. D. Hillier, Y. J. Zhang, Y. X. Chen, B. Shen, F. Orlandi, H. C. Walker, Y. Liu, C. Cao, F. Steglich, H. Q. Yuan, M. Smidman

CeRh$_6$Ge$_4$ is an unusual example of a stoichiometric heavy fermion ferromagnet, which can be cleanly tuned by hydrostatic pressure to a quantum critical point.

Strongly Correlated Electrons

From one- to two-magnon excitations in the S=3/2 magnet $β$-CaCr$_2$O$_4$

no code implementations • 11 Dec 2020 • M. Songvilay, S. Petit, F. Damay, G. Roux, N. Qureshi, H. C. Walker, J. A. Rodriguez-Rivera, B. Gao, S. -W. Cheong, C. Stock

We apply neutron spectroscopy to measure the magnetic dynamics in the S=3/2 magnet $\beta$-CaCr$_2$O$_4$ (T$_N$=21 K).

Strongly Correlated Electrons