Investigating High-Tc Spiral Order In YBaCuFeO5 Multiferroic Single Crystal
***¿This proposal (5-41-1128) was evaluated and accepted in Oct-2020 but could not be awarded beam time due to national balance"*** The low-magnetic ordering temperatures critically restrict the potential uses of magnetoelectric multiferroics. YBaCuFeO5 displays magnetism-driven ferroelectricity (FE) at unexpectedly high temperatures. Being one of the best candidates [Nature Comm 7, 13758 (2016), Science Adv. 4,eaau6386(2018)] to switchable, magnetism-driven FE at zero field. This system shows an extraordinary tunability of its spiral ordering temperature, which can be extended beyond RT by manipulating the Cu/Fe chemical disorder. However, both a sinusoidal and a spiral magnetic order can give account of the magnetic intensities of the ICM phase from NPD patterns. Although the spiral solution is usually adopted to explain FE in polycrystalline samples, there is no yet magnetic refinements of this phase using full single-crystal data. This experiment is aimed to definitively remove the ambiguity between the sinusoidal and spiral models in the incommensurate phase of a quality YBaCuFeO5 crystal. To our knowledge, our sample presents the highest TS reported for YBCFO crystals.
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The recommended format for citing this dataset in a research publication is in the following format:
Jose Luis Garcia-Muñoz; FABELO ROSA Oscar Ramon; HERRERO MARTIN Javier; LI Ruyong; QURESHI Navid; RODRIGUEZ VELAMAZAN Jose Alberto; Arnau Romaguera and ZHANG XIAODONG. (2021). Investigating High-Tc Spiral Order In YBaCuFeO5 Multiferroic Single Crystal. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-41-1153
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