Abstract
We report the results of muon spin relaxation () and NMR measurements carried out on the cubic chiral magnet EuPtSi. This compound exhibits a helimagnetic transition at K, and hosts a unique skyrmion phase characterized by a short modulation period and strong anisotropy under magnetic fields. Our zero-field experiments revealed the development of critical slowing down of Eu spin fluctuations over a relatively wide critical region above . We also found from NMR that the spin fluctuations are strongly suppressed by magnetic field in the paramagnetic state above 20 K. These characteristic spin dynamics observed over a wide region of temperature and magnetic field suggest the presence of magnetic frustration in the spin system. Such frustration would underlie the mechanism stabilizing the short-period skyrmion lattice observed in this compound.
Original language | English |
---|---|
Article number | 045145 |
Journal | Physical Review B |
Volume | 104 |
Issue number | 4 |
DOIs | |
Publication status | Published - Jul 15 2021 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics