Creation and Annihilation of Skyrmions in the Frustrated Magnets with Competing Exchange Interactions.

ABSTRACT: In triangular-lattice magnets, the coexistence of third-neighbor antiferromagnetic and nearest-neighbor ferromagnetic exchange interactions can induce rich magnetic phases including noncoplanar skyrmion crystals. Based on Monte Carlo simulation, we studied the dependence of magnetic phase transition on exchange interaction strength. Under the consideration of uniaxial anisotropy and magnetic field both perpendicular to the film plane, a large antiferromagnetic exchange interaction induces a high frustration. When the value of antiferromagnetic exchange interaction is one and a half times larger than the ferromagnetic one, a magnetic phase composed of canting spin stripes, never observed in the chiral magnets, forms. Interestingly, different canting spin stripes along three 120 degree propa

SUBMITTER: Hu Y 

PROVIDER: S-EPMC5700090 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature