Light-induced switching of magnetic order in the anisotropic triangular-lattice Hubbard model

Kobayashi, H.; Fujiuchi, Ryo; Sugimoto, K.; Ohta, Y.

doi:10.1103/physrevb.103.l161106

Cited by 4 publications

(1 citation statement)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, many researchers have studied the optical creation of the skyrmions in the noncentrosymmetric magnets, where the local excitation by laser promotes the nucleation of the skyrmions [39][40][41][42][43][44][45][46][47]. The nonthermal control of the magnetic interactions and spin chirality via high-frequency laser, microwave, and static fields was also proposed theoretically [37,[48][49][50][51][52][53][54][55][56][57][58]. For example, circularly polarized light breaks the time-reversal symmetry and can be coupled to the scalar chirality [50][51][52].…”

mentioning

confidence: 99%

Photocontrol of spin scalar chirality in centrosymmetric itinerant magnets

Ono¹,

Akagi²

2021

Preprint

View full text Add to dashboard Cite

Noncoplanar magnetic structures, such as magnetic skyrmions, are characterized by the spin chirality and usually favored by antisymmetric exchange interactions in noncentrosymmetric magnets. Here, we show that a linearly polarized electric-field pulse stabilizes a nonequilibrium spin-scalar-chiral state in a centrosymmetric itinerant ferromagnet. The sign of the scalar chirality can be controlled by circularly polarized light. Furthermore, magnetic skyrmions are excited after the pulse decays. A photoinduced non-thermal electron distribution plays an important role for instability towards the spin-scalar-chiral state as well as the 120 • Néel state, depending on the next-nearest-neighbor transfer integral. These results provide an alternative route to controlling the spin chirality by photoirradiation.

show abstract