Vector-spin-chirality bound state driven by the inverse Dzyaloshinskii–Moriya mechanism

Xing Guo, Yaojin Li, Chenglong Jia
2018 New Journal of Physics  
Ground-state phase structure of the spin-$\frac{1}{2} $ anisotropic planar pyrochlore P H Y Li and R F Bishop -Simulating quantum spin models using Rydberg-excited atomic ensembles in magnetic microtrap arrays Abstract We illustrate analytically the formation of vector-spin-chirality bound state due to spin-phonon interaction conditioned by the inverse Dzyaloshinskii-Moriya mechanism. The non-equilibrium dynamics of spin-chirality is effectively mapped into the spin-boson model. For spin-1/2
more » ... tems, our study suggests an existence of a gapless first-order phase transition from incoherent to coherent spin fluctuations, which is quantified to an emergence of spin-chirality bound state. The critical strength of spin-phonon interaction is found to be determined by the ratio between the amplitude of spin fluctuations and the Debye frequency of system.
doi:10.1088/1367-2630/aac0d9 fatcat:hath4s4wszgl5datyv57pdke2y