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58 papers · 1 filter
Dielectric signatures of crystal-field and low-temperature correlated dynamics in NdMgAl11O19
Sonu Kumar, Gaël Bastien, Maxim Savinov +3
We report dielectric spectroscopy of single-crystalline \ce{NdMgAl11O19}, a magnetoplumbite hexaaluminate in which localized \ce{Nd^{3+}} moments coexist with a polarizable \ce{AlO…
Cavity-induced coherent magnetization and polaritons in altermagnets
Mohsen Yarmohammadi, Libor Šmejkal, James K. Freericks
Altermagnets feature antiparallel spin sublattices with -, -, or -wave spin order, yielding nonrelativistic spin splitting without net magnetization. We show that embeddin…
Crystal-Field--Driven Magnetoelectric Coupling in the Non-Kramers Hexaaluminate PrMgAl11O19
Sonu Kumar, Gaël Bastien, Ross H. Colman +7
We report broadband dielectric spectra of the non-Kramers hexaaluminate PrMgAl\textsubscript{11}O\textsubscript{19}, revealing a pronounced interplay between permittivity and magne…
Magnetic anisotropy and intermediate valence in CeCo ferromagnet
Alexander B. Shick, Evgenia A. Tereshina-Chitrova
The intermediate valence of Ce in CeCo challenges standard density functional theory (DFT) and static DFT+ approaches, which fail to capture its magnetic properties. By comb…
Spontaneous lattice distortion and crystal field effects in HoB4
S. Goswami, D. I. Gorbunov, D. Kriegner +9
The tetraboride HoB4 crystallizes in a tetragonal structure (space group P4/mbm), with the Ho atoms realizing a Shastry-Sutherland lattice. It orders antiferromagnetically at TN1 =…
Non-relativistic linear Edelstein effect in helical EuIn2As2
Nayra A. Álvarez Pari, Rodrigo Jaeschke-Ubiergo, Atasi Chakraborty +2
Motivated by the ongoing interest in understanding the actual magnetic ground state of the promising axion insulator candidate EuIn2As2, we present here a spin symmetry analysis an…