%0 Journal Article %1 PhysRevLett.132.057202 %A McRoberts, Adam J. %A Bilitewski, Thomas %A Haque, Masudul %A Moessner, Roderich %D 2024 %I American Physical Society %J Phys. Rev. Lett. %K b %N 5 %P 057202 %R 10.1103/PhysRevLett.132.057202 %T Domain wall dynamics in classical spin chains: free propagation, subdiffusive spreading, and soliton emission %U https://link.aps.org/doi/10.1103/PhysRevLett.132.057202 %V 132 %X The nonequilibrium dynamics of domain wall initial states in a classical anisotropic Heisenberg chain exhibits a striking coexistence of apparently linear and nonlinear behaviors: the propagation and spreading of the domain wall can be captured quantitatively by linear, i.e., noninteracting, spin wave theory absent its usual justifications; while, simultaneously, for a wide range of easy-plane anisotropies, emission can take the place of stable solitons—a process and objects intrinsically associated with interactions and nonlinearities. The easy-axis domain wall only has transient dynamics, the isotropic one broadens diffusively, while the easy-plane one yields a pair of ballistically counterpropagating domain walls which, unusually, broaden subdiffusively, their width scaling as t^1/3.

@article{PhysRevLett.132.057202, abstract = {The nonequilibrium dynamics of domain wall initial states in a classical anisotropic Heisenberg chain exhibits a striking coexistence of apparently linear and nonlinear behaviors: the propagation and spreading of the domain wall can be captured quantitatively by linear, i.e., noninteracting, spin wave theory absent its usual justifications; while, simultaneously, for a wide range of easy-plane anisotropies, emission can take the place of stable solitons—a process and objects intrinsically associated with interactions and nonlinearities. The easy-axis domain wall only has transient dynamics, the isotropic one broadens diffusively, while the easy-plane one yields a pair of ballistically counterpropagating domain walls which, unusually, broaden subdiffusively, their width scaling as t^1/3.}, added-at = {2024-04-26T15:04:08.000+0200}, author = {McRoberts, Adam J. and Bilitewski, Thomas and Haque, Masudul and Moessner, Roderich}, biburl = {https://www.bibsonomy.org/bibtex/220dcb54cb750f5d3dd461bf29b74755b/ctqmat}, day = 01, doi = {10.1103/PhysRevLett.132.057202}, interhash = {41282ffa1696603c07cd6b108a5b983e}, intrahash = {20dcb54cb750f5d3dd461bf29b74755b}, journal = {Phys. Rev. Lett.}, keywords = {b}, month = {02}, number = 5, numpages = {7}, pages = 057202, publisher = {American Physical Society}, timestamp = {2024-04-26T15:04:08.000+0200}, title = {Domain wall dynamics in classical spin chains: free propagation, subdiffusive spreading, and soliton emission}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.132.057202}, volume = 132, year = 2024 }