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Titel:

Critical Spin-Flip Scattering at the Helimagnetic Transition of {{MnSi}}

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Kindervater, J.; Ḧau\ss{}ler, W.; Janoschek, M.; Pfleiderer, C.; B̈oni, P.; Garst, M.
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...     »
Zeitschriftentitel:
Physical Review B
Jahr:
2014
Band / Volume:
89
Monat:
may
Heft / Issue:
18
Seitenangaben Beitrag:
180408
Volltext / DOI:
doi:10.1103/PhysRevB.89.180408
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