Investigation of high pressure phase in multiferroic perovskite DyMnO3 by using CryoPAD and Hybrid-Anvil-Cell
We propose to perform neutron polarimetry analysis under high-pressure for multifefrroic DyMnO3 using CryoPAD in combination with hybrid-anvil-cell developed by the user. Giant electric polarization has been recently discovered to be induced by hydrostatic pressure in RMnO3 (R=Dy, Tb, and Gd). Our recent unpolarized neutron diffraction experiment under pressure for TbMnO3 suggested that not only the E-type (up up down down) Mn spin ordering, but also rare earth ordering (noncollinear) plays an important role for significant change in the giant polarization in the rare earth manganites. (N. Terada et. al. PRB 081104(R) (2016))However, for further understanding the pressure induced giant polarization, it is essential to investigate details of rare earth spin ordering as well as Mn spins, by neutron polarimetry analysis.
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TERADA Noriki; ENDERLE Mechthild; PRABHAKARAN Dharmalingam and QURESHI Navid. (2018). Investigation of high pressure phase in multiferroic perovskite DyMnO3 by using CryoPAD and Hybrid-Anvil-Cell. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-256
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