Magnetic Blue Phase in the Chiral Itinerant Magnet MnSi
Hamann, A. · Lamago, D. · Wolf, Th. · Lohneysen, H. v. · Reznik, D.
Original · EN
Chiral nematic liquid crystals sometimes form blue phases characterized by spirals twisting in different directions. By combining model calculations with neutron-scattering experiments, we show that the magnetic analogue of blue phases does form in the chiral itinerant magnet MnSi in a large part of the phase diagram. The properties of this blue phase explain a number of previously reported puzzling features of MnSi such as partial magnetic order and a two-component specific-heat and thermal-expansion anomaly at the magnetic transition.
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