An inelastic neutron scattering investigation of holmium orthoferrite

Autor: G A Stewart, G N Iles, R A Mole, Z Yamani
Rok vydání: 2022
Předmět:
Zdroj: Journal of Physics: Condensed Matter. 35:025701
ISSN: 1361-648X
0953-8984
DOI: 10.1088/1361-648x/ac9e83
Popis: The inelastic neutron scattering spectra recorded in this study and elsewhere provide a useful set of crystal-field (CF) energy levels for the ground J = 6 term of Ho3+ in HoFeO3. The resolution of the low-energy, temperature-dependent pseudo-quadrupole ground state splitting and magnon peaks is consistent with the self-ordering of the Ho3+ sublattice at T Ho ∼ 8–10 K and supports earlier electron spin resonance investigations of the Ho3+ magnon behaviour. Systematic analysis of the grouped singlet CF levels of Ho3: HoFeO3, in conjunction with the CF Kramers doublet levels of the neighbouring Er3+: ErFeO3, has yielded possible sets of CF parameters for the two systems.
Databáze: OpenAIRE