Hauptseite > Publikationsdatenbank > Crystal chirality versus magnetic chirality in CsCuCl3 determined by neutron polarization analysis > print

001     859536
005     20210130000321.0
037 _ _ |a FZJ-2019-00388
041 _ _ |a English
100 1 _ |a Hutanu, V.
|0 P:(DE-Juel1)164298
|b 0
|e Corresponding author
111 2 _ |a 26th Annual Meeting of the German Crystallographic Society
|g DGK
|c Essen
|d 2018-03-05 - 2018-03-08
|w Germany
245 _ _ |a Crystal chirality versus magnetic chirality in CsCuCl3 determined by neutron polarization analysis
260 _ _ |c 2018
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
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336 7 _ |a INPROCEEDINGS
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336 7 _ |a Conference Presentation
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520 _ _ |a The concept of chirality, meaning left- or right-handedness, plays an essential role in symmetry properties of nature at all length scales from elementary particles to cosmic science. In material sciences, it is very important to understand the chirality in molecules, crystals and magnetic structures both from theoretical and experimental points of view. Chiral helimagnetic ordering, forming only right- or left-handed spiral magnetic structure, has attract much attention in the last time due to unique magnetic textures such as skyrmion and chiral magnetic soliton lattice [1, 2]. Therefore, it is very important to investigate the interplay between crystallographic and helimagnetic chirality. However, only very few experimental results on this interplay are reported up to now, due to the difficulty to synthesize homo-chiral single crystals, which consisting solely of right- or left-handed crystalline domains.Using novel two-step crystallization technique under stirring we succeeded in obtaining the cm-large ordered homo-chiral single crystals of CsCuCl3 with desired handedness [3]. Circular-polarized synchrotron radiation at SPring 8, J-Park was employed to determine the handedness of the crystal symmetry in different samples [4]. Below 10.5 K a proper-screw magnetic order with propagation vector k=(1/3,1/3, ±δ) with (δ ∼ 0.09) is formed in CsCuCl3. The magnetic chirality of the homo-chiral crystals was investigated using polarized single crystal diffractometer POLI at MLZ. Our experimental results revealed that the handedness of the magnetic helicity is coupled and directly controlled by the crystallographic lattice chirality [5]. The results could be understood in terms of Dzyaloshinskii-Morya interaction strongly coupled to the lattice, lifting the helix chiral degeneracy.References:1. S. Muhlbauer et al., Science 323, 915 (2009).2. Y. Togawa et al., Phys. Rev. Lett. 108, 107202 (2012).3. Y. Kousaka et al., J.Phys.: Conf. Series 502 012019 (2014).4. H. Ohsumi et al., Angew. Chem., Int. Ed. 52, 8718 (2013).5. Y. Kousaka et al., Phys. Rev. Materials, 1, 071402(R) (2017).
536 _ _ |a 524 - Controlling Collective States (POF3-524)
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536 _ _ |a 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621)
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650 2 7 |a Condensed Matter Physics
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650 2 7 |a Crystallography
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650 2 7 |a Magnetism
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650 1 7 |a Magnetic Materials
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693 _ _ |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz
|e POLI: Polarized hot neutron diffractometer
|f SR9a
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700 1 _ |a Kousaka, Y.
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700 1 _ |a Ohishi, K.
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700 1 _ |a Kakurai, K.
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700 1 _ |a Roth, G.
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909 C O |o oai:juser.fz-juelich.de:859536
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910 1 _ |a Forschungszentrum Jülich
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