Abstract
A complete temperature-dependent scheme of the Mn3+ on-site d-d transitions in multiferroic hexagonal HoMnO3 (h-HoMnO3) thin films was unveiled by energy-resolved ultrafast spectroscopy. The results unambiguously revealed that the ultrafast responses of the e1g and e2g states differed significantly in the hexagonal HoMnO3. We demonstrated that the short-range antiferromagnetic and ferroelectric orderings are more relevant to the e2g state, whereas the long-range antiferromagnetic ordering is intimately coupled to both the e2g and e1g states. Moreover, the primary thermalization times of the e2g and e1g states were 0.34 ± 0.08 ps and 0.38 ± 0.08 ps, respectively.
Original language | English |
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Article number | 5188 |
Journal | Materials |
Volume | 15 |
Issue number | 15 |
DOIs | |
State | Published - Aug 2022 |
Keywords
- antiferromagnetic ordering
- ferroelectric ordering
- multiferroic manganites
- ultrafast spectroscopy