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Document type:
Zeitschriftenaufsatz
Author(s):
Kindervater, J.; Ḧau\ss{}ler, W.; Janoschek, M.; Pfleiderer, C.; B̈oni, P.; Garst, M.
Title:
Critical Spin-Flip Scattering at the Helimagnetic Transition of {{MnSi}}
Abstract:
We report spherical neutron polarimetry (SNP) and discuss the spin-flip scattering cross sections as well as the chiral fraction $\eta$ close to the helimagnetic transition in MnSi. For our study we have developed a miniaturized SNP device that allows fast data collection when used in small angle scattering geometry with an area detector. Critical spin-flip scattering is found to be governed by chiral paramagnons that soften on a sphere in momentum space. Carefully accounting for the incoherent...    »
Journal title:
Physical Review B
Year:
2014
Journal volume:
89
Month:
may
Journal issue:
18
Pages contribution:
180408
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