Raman study of magnetic phase transitions of hexagonal manganites

Ji-Yeon Nam; Nguyen Thi Minh Hien; Nguyen Thi Huyen; Kiok Han; Xiang-Bai Chen; S. W. Cheong; D. Lee; T. W. Noh; N. H. Sung; B. K. Cho; In-Sang Yang

doi:10.1117/12.2052579

8 March 2014 Raman study of magnetic phase transitions of hexagonal manganites

Ji-Yeon Nam, Nguyen Thi Minh Hien, Nguyen Thi Huyen, Kiok Han, Xiang-Bai Chen, S. W. Cheong, D. Lee, T. W. Noh, N. H. Sung, B. K. Cho, In-Sang Yang

Author Affiliations +

Proceedings Volume 8987, Oxide-based Materials and Devices V; 898715 (2014) https://doi.org/10.1117/12.2052579
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Results of Raman studies of magnetic phase transitions of hexagonal LuMnO₃ single crystal and HoMnO₃ thin films are compared directly with the results of magnetic measurements. Our results show that the temperature dependent Raman study of magnon scattering provides a simple and accurate method for investigating magnetic phase transitions, especially in HoMnO₃ thin films. In single crystal, our optical method provides results as good as magnetization measurements.

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Ji-Yeon Nam, Nguyen Thi Minh Hien, Nguyen Thi Huyen, Kiok Han, Xiang-Bai Chen, S. W. Cheong, D. Lee, T. W. Noh, N. H. Sung, B. K. Cho, and In-Sang Yang "Raman study of magnetic phase transitions of hexagonal manganites", Proc. SPIE 8987, Oxide-based Materials and Devices V, 898715 (8 March 2014); https://doi.org/10.1117/12.2052579

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