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Phase-transition kinetics of magnetic skyrmions investigated by stroboscopic small-angle neutron scattering
- Source :
- Physical Review B. 98
- Publication Year :
- 2018
- Publisher :
- American Physical Society (APS), 2018.
-
Abstract
- We investigated the phase-transition kinetics of magnetic skyrmion lattice (SkL) in MnSi by means of stroboscopic small-angle neutron scattering (SANS). Temporal evolutions of SANS patterns were measured with time resolution of 13 ms while sweeping temperature as fast as $50{\mathrm{Ks}}^{\ensuremath{-}1}$. It turned out that the paramagnetic-to-SkL transition immediately occurs upon traversing the equilibrium phase boundary on the rapid cooling, whereas the SkL-to-conical transition can be kinetically avoided to realize the low-temperature metastable SkL with a long-range magnetic order. The formation of the metastable SkL was found to be strongly dependent not only on cooling rate, but also on magnetic field and trajectory in the $H\text{\ensuremath{-}}T$ phase diagram.
- Subjects :
- Materials science
Condensed matter physics
Skyrmion
02 engineering and technology
Magnetic skyrmion
Neutron scattering
021001 nanoscience & nanotechnology
01 natural sciences
Small-angle neutron scattering
Magnetic field
Metastability
Lattice (order)
0103 physical sciences
010306 general physics
0210 nano-technology
Phase diagram
Subjects
Details
- ISSN :
- 24699969 and 24699950
- Volume :
- 98
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........1b57ebd894a78b0e5475c5d6ac428046