9 papers
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…
Magnetoelastic coupling at the field-induced transition in EuAlO
T. Haidamak, G. Bastien, P. Proschek +9
Magnetoelastic coupling plays a crucial role in magnetic-field-induced transitions in anisotropic ferromagnets. Ultrasonic methods are suitable for experimental investigations of t…
Strongly Quenched Kramers Doublet Magnetism in SmMgAl11O19
Sonu Kumar, Barbora Salajová, Andrej Kancko +3
We report magnetic susceptibility, isothermal magnetization, and specific-heat measurements on the rare-earth hexaaluminate SmMgAlO, where Sm realizes a strong…
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…
Crystal-Field--Driven Magnetoelectricity in the Triangular Quantum Magnet CeMgAlO
Sonu Kumar, Gaël Bastien, Maxim Savinov +6
We report dielectric and magnetoelectric studies of single-crystalline \ce{CeMgAl11O19}, a Kramers triangular magnet embedded in a polarizable hexaaluminate lattice. In zero magnet…
Quantum disordered ground state and relative proximity to an exactly solvable model in the frustrated magnet CeMgAlO
G. Bastien, A. Eliáš, V. Anderle +12
The magnetic properties of the triangular magnet CeMgAlO were investigated by magnetization and specific heat measurements down to K on single crystals grow…