| Autor: |
Chen, DP, Du, Y, Wang, XL, Cheng, ZX, Dou, SX, Lin, ZW, Zhu, JG, Xu, B |
| Rok vydání: |
2012 |
| Předmět: |
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| Popis: |
We have investigated the structural, magnetic, and ferroelectric properties of magnetically frustrated multiferroic YMnO 3 single crystals. The ferroelectric domain structures of YMnO 3 samples were studied by piezoresponse force microscopy. Instead of domain vortex structure in stoichiometric crystals, YMnO 3-δ exhibits a random domain configuration with straight domain walls. In magnetic measurements, the YMnO 3-δ crystal shows typical antiferromagnetic behavior with higher Nel temperature and lower magnetization compared to the stoichiometric sample. The ordered oxygen vacancies dominate multiferroicity through tailoring the domain wall structure. © 2012 American Institute of Physics. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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