Magnetic Fluctuations and Correlations in MnSi - Evidence for a Skyrmion Spin Liquid Phase

Abstract

We present a comprehensive analysis of high resolution neutron scattering data involving Neutron Spin Echo spectroscopy and Spherical Polarimetry which confirm the first order nature of the helical transition and reveal the existence of a new spin liquid skyrmion phase. Similar to the blue phases of liquid crystals this phase appears in a very narrow temperature range between the low temperature helical and the high temperature paramagnetic phases.

11 pages, 16 figures

References in corpus (4)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Theory of the helical spin crystal: a candidate for the partially ordered state of MnSi
• Crystalline phases in chiral ferromagnets: Destabilization of helical order
• Ultrasonic studies of the magnetic phase transition in MnSi

Cited by in corpus (19)

• Fluctuation-induced first-order phase transition in Dzyaloshinskii-Moriya helimagnets
• Magnetic phase diagram of MnSi inferred from magnetization and ac susceptibility
• Complex magnetic phase diagram and skyrmion lifetime in an ultrathin film from atomistic simulations
• Confinement of Chiral Magnetic Modulations in the Precursor Region of FeGe
• Magnetoelectric effects in single crystals of the cubic ferrimagnetic helimagnet Cu2OSeO3
• Magnetic Fluctuations, Precursor Phenomena and Phase Transition in MnSi under Magnetic Field
• Comparative study of helimagnets MnSi and Cu2OSeO3 at high pressures
• Role of Antisymmetric Exchange in Selecting Magnetic Chirality in Ba${}_3$NbFe${}_3$Si${}_2$O${}_{14}$
• Weak crystallization of fluctuating skyrmion textures in MnSi
• Formation of a Topological Monopole Lattice and its Dynamics in Three-dimensional Chiral Magnets
• Inexhaustible physics of the helical magnet MnSi: field evolution of the magnetic phase transition inferred from ultrasound studies
• Universality of the helimagnetic transition in cubic chiral magnets: Small angle neutron scattering and neutron spin echo spectroscopy studies of Fe${}_{1-x}$Co${}_x$Si
• Critical spin-flip scattering at the helimagnetic transition of MnSi
• Skyrmion-Excited Spin Wave Fractal Network
• Evolution of Helimagnetic Correlations when approaching the Quantum Critical Point of Mn${}_{1-x}$Fe${}_x$Si
• AC magnetic response of highly nonlinear soliton lattice in a monoaxial chiral helimagnet
• Physical properties of (Mn,Co)Si
• Effect of Ge-substitution on Magnetic Properties in the Itinerant Chiral Magnet MnSi
• Why paramagnetic chiral correlations in the long wavelength limit do not contribute to muon-spin relaxation