Energy-Resolved Ultrafast Spectroscopic Investigation on the Spin-Coupled Electronic States in Multiferroic Hexagonal HoMnO3

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

*此作品的通信作者

研究成果: Article同行評審

摘要

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.

原文English
文章編號5188
期刊Materials
15
發行號15
DOIs
出版狀態Published - 8月 2022

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