Spin chirality of polycrystalline MnSi, or, difficult way from rumours to the solid ground

Six different polycrystalline samples of MnSi were produced as a rapidly frozen melt after the single crystal growth in the Czochralski process. With the help of small-angle scattering of polarized neutrons we show that the magnetic spin chirality being scanned along the sample length oscillates str...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2011-06, Vol.406 (12), p.2385-2388
Main Authors: Dyadkin, V.A., Grigoriev, S.V., Menzel, D., Moskvin, E.V., Maleyev, S.V., Eckerlebe, H.
Format: Article
Language:English
Subjects:
Chirality
Condensed matter
Czochralski process
Dzyaloshinskii–Moriya interaction
Freezing
Frozen
Grounds
Melts
Scattering
Small-angle scattering of polarized neutrons
Spin chirality
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Summary:Six different polycrystalline samples of MnSi were produced as a rapidly frozen melt after the single crystal growth in the Czochralski process. With the help of small-angle scattering of polarized neutrons we show that the magnetic spin chirality being scanned along the sample length oscillates strongly on a scale of 2–3mm, revealing the volumes of the samples with high degree of an enantiomeric excess. The average chirality of the samples deviates from zero value. ► Six different polycrystalline samples of MnSi were produced as a rapidly frozen melt. ► The magnetic spin chirality is shown to be scanned along the sample length. ► The chirality oscillates strongly on a scale of 2–3mm. ► It reveals the volumes of the samples with high degree of an enantiomeric excess. ► The average chirality of the samples deviates from zero value.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2010.11.023