Energy-Resolved Ultrafast Spectroscopic Investigation on the Spin-Coupled Electronic States in Multiferroic Hexagonal HoMnO3
| Autor: | Wei-Hong Huang, Hao-Keng Wei, Nguyen Nhat Quyen, Pei-Tsung Yang, Yi-Cheng Cheng, Yu-Ting Wang, Ying-Kuan Ko, Chien-Ming Tu, Atsushi Yabushita, Chih-Wei Luo |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
multiferroic manganites
antiferromagnetic ordering ferroelectric ordering ultrafast spectroscopy Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
| Zdroj: | Materials, Vol 15, Iss 15, p 5188 (2022) |
| Druh dokumentu: | article |
| ISSN: | 15155188 1996-1944 |
| DOI: | 10.3390/ma15155188 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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