Domain structure and multiferroic properties of epitaxial hexagonal ErMnO3 films
Domain structure and multiferroic properties of epitaxial hexagonal ErMnO3 films
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外延六方ErMnO3薄膜的畴结构和多铁性
DOI:
10.1016/j.jallcom.2019.153529
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发表时间:
2020-04
影响因子:
6.2
通讯作者:
Jun-Ming Liu
中科院分区:
文献类型:
--
作者:
Yi Chen;Ye Li;Dongfeng Zheng;Leiyu Li;Min Zeng;Minghui Qin;Zhipeng Hou;Zhen Fan;Xingsen Gao;Xubing Lu;Qiliang Li;Jun-Ming Liu
Epitaxial ErMnO 3 thin films were grown on Pt-coated Al 2 O 3 substrate by pulsed laser deposition. Their structure, multiferroicity, and ferroelectric domain properties have been comprehensively characterized and studied. The XRD measurement indicated an excellent epitaxy of out-of-plane ErMnO 3 (0001)//Pt (111)//Al 2 O 3 (0001) and in-plane ErMnO 3 [1000]//Pt [11 2‾]//Al 2 O 3 [11 2‾ 0] structures. The as-deposited ErMnO 3 films exhibited spontaneous ferroelectric domains with reversible polarization. A significant remnant polarization of 1.3 μC/cm 2 and an active peak at 662 cm− 1 in Raman spectra were found, further showing a high quality of the ErMnO 3 thin films. Moreover, the magnetic measurements indicated that the thin film has an excellent anisotropic magnetic property with a Neel temperature at≈ 53 K.
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