Magnetic fluctuations and correlations in MnSi: Evidence for a chiral skyrmion spin liquid phase

Journal Article · Wed Jun 01 00:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.83.224405· OSTI ID:21544780

Pappas, C ^[1]; Lelievre-Berna, E; Bentley, P; Falus, P; Fouquet, P; Farago, B ^[2]

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1. Delft University of Technology, Faculty of Applied Sciences, Mekelweg 15, NL-2629JB Delft (Netherlands)
2. Institut Laue Langevin, 6, Rue Jules Horowitz, FR-38042 Grenoble (France)

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 in MnSi. The experiments reveal the existence of a totally chiral dynamic phase in a very narrow temperature range above T{sub C}. This unconventional magnetic short-range order has a topology similar to that of a skyrmion liquid or the blue phases of liquid crystals.

• OSTI ID: 21544780
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 22; Other Information: DOI: 10.1103/PhysRevB.83.224405; (c) 2011 American Institute of Physics; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHIRALITY
CORRELATIONS
CRITICAL TEMPERATURE
FLUCTUATIONS
MANGANESE SILICIDES
NEUTRON DIFFRACTION
NEUTRON SPECTROSCOPY
POLARIMETRY
RESOLUTION
SPHERICAL CONFIGURATION
SPIN
SPIN ECHO
TOPOLOGY
ANGULAR MOMENTUM
COHERENT SCATTERING
CONFIGURATION
DIFFRACTION
MANGANESE COMPOUNDS
MATHEMATICS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SCATTERING
SILICIDES
SILICON COMPOUNDS
SPECTROSCOPY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VARIATIONS