PrMn2O5 under pressure, a good candidate for multiferroism
RMn2O5 are multiferroic compounds which are promising for applications in data storage. In TbMn2O5, a strong magneto-electric effect has been evidenced. In this compound, a succession of phase transitions and in particular a spin-induced ferroelectric transition which occurs in a CM magnetic phase with always the same propagation wave vector qM=1/2 0 1/4. The influence of the rare earth on the multiferroic properties is obvious. The role of the R3+ size has been emphasized. Compounds of the series with large R3+ size such as PrMn2O5 are not ferroelectric and present only commensurate magnetic transition of propagation wave vector (0.5 0 0), (0 0 0.5) or (0.5 0 0.5). In order to investigate a possible chemical pressure effect, we would like to study the magnetic ordering of PrMn2O5 under pressure and compare the results with compounds of the series with smaller R3+ size such as TbMn2O5.
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FOURY LEYLEKIAN Pascale; BALEDENT Victor; CHATTOPADHYAY Sumanta; Claire V. Colin; WEI PENG; PENG Chengyuan and PUENTE ORENCH Ines. (2016). PrMn2O5 under pressure, a good candidate for multiferroism. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2475
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