High-pressure-induced spin-liquid phase of multiferroic YMnO_3

D. P. Kozlenko; I. Mirebeau; J.-G. Park; I. N. Goncharenko; S. Lee; Junghwan Park; B. N. Savenko

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High-pressure-induced spin-liquid phase of multiferroic YMnO_3

机译：多铁性YMnO_3的高压自旋液相

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We investigated the magnetic structure and short-range spin correlations of multiferroic hexagonal manga-nite YMnO_3 by powder neutron diffraction at high pressures up to 6.7 GPa. High pressure induces a spin-liquid phase in multiferroic YMnO_3, coexisting with the suppressed long-range antiferromagnetic order. This spin-liquid phase exhibits a temperature dependence distinctively different from short-range spin correlations seen at ambient pressure. Its formation occurs through an in-plane Mn-O bond symmetrization and results in reduced magnetoelastic coupling at high pressures.

机译：我们通过粉末中子衍射在高达6.7 GPa的高压下研究了多铁性六方锰矿YMnO_3的磁性结构和短程自旋相关性。高压在多铁性YMnO_3中诱导自旋液相，与抑制的远距离反铁磁有序并存。这种自旋液相表现出的温度依赖性明显不同于在环境压力下看到的短程自旋相关性。它的形成是通过面内Mn-O键对称而发生的，并导致高压下的磁弹性耦合降低。

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《Physical review》 |2008年第5期|363-367|共5页
作者
D. P. Kozlenko; I. Mirebeau; J.-G. Park; I. N. Goncharenko; S. Lee; Junghwan Park; B. N. Savenko;
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spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.); antiferromagnetics; crystallographic aspects of phase transformations; pressurerneffects;

机译：磁性有序材料的自旋排列（包括中子和自旋极化电子研究;同步辐射源X射线散射等）;反铁磁相变的晶体学方面;压力效应;

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3. Magnetoelastic excitations in multiferroic hexagonal YMnO_3 studied by inelastic x-ray scattering [J] . Kisoo Park, Joosung Oh, Ki Hoon Lee, Physical review . 2020,第8期

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High-pressure-induced spin-liquid phase of multiferroic YMnO_3

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