Squeezing the periodicity of Néel-type magnetic modulations by enhanced Dzyaloshinskii-Moriya interaction of 4d electrons
Abstrak
Abstract In polar magnets, such as GaV4S8, GaV4Se8 and VOSe2O5, modulated magnetic phases namely the cycloidal and the Néel-type skyrmion lattice states were identified over extended temperature ranges, even down to zero Kelvin. Our combined small-angle neutron scattering and magnetization study shows the robustness of the Néel-type magnetic modulations also against magnetic fields up to 2 T in the polar GaMo4S8. In addition to the large upper critical field, enhanced spin-orbit coupling stabilize cycloidal, Néel skyrmion lattice phases with sub-10 nm periodicity and a peculiar distribution of the magnetic modulation vectors. Moreover, we detected an additional single-q state not observed in any other polar magnets. Thus, our work demonstrates that non-centrosymmetric magnets with 4d and 5d electron systems may give rise to various highly compressed modulated states.
Topik & Kata Kunci
Penulis (13)
Ádám Butykai
Korbinian Geirhos
Dávid Szaller
László F. Kiss
László Balogh
Maria Azhar
Markus Garst
Lisa DeBeer-Schmitt
Takeshi Waki
Yoshikazu Tabata
Hiroyuki Nakamura
István Kézsmárki
Sándor Bordács
Akses Cepat
- Tahun Terbit
- 2022
- Sumber Database
- DOAJ
- DOI
- 10.1038/s41535-022-00432-y
- Akses
- Open Access ✓