Chiral paramagnetic skyrmion-like phase in MnSi.
We present a comprehensive study of chiral fluctuations in the reference helimagnet MnSi by polarized neutron scattering and neutron spin echo spectroscopy, which reveals the existence of a completely left-handed and dynamically disordered phase. This phase may be identified as a spontaneous Skyrmion phase: it appears in a limited temperature range just above the helical transition T_{C} and coexists with the helical phase at T_{C}.
Pappas
C
C
Helmholtz Zentrum Berlin für Materialien und Energie, Glienickerstrasse 100, 14109 Berlin, Germany. pappas@helmholtz-berlin.de
Lelièvre-Berna
E
E
Falus
P
P
Bentley
P M
PM
Moskvin
E
E
Grigoriev
S
S
Fouquet
P
P
Farago
B
B
D008280:Magnetics; D008345:Manganese / Q000737:chemistry*; D008956:Models, Chemical; D033363:Neutron Diffraction; D053838:Scattering, Small Angle; D012825:Silicon / Q000737:chemistry*; D013237:Stereoisomerism
D008345:Manganese; D012825:Silicon