Abstract
Two-magnon bound states are exact eigenstates of the Heisenberg ferromagnet whose energy falls outside the two-magnon continuum. The well-grounded expectation that at least one bound state exists for any wave vector in 2D Heisenberg ferromagnets seems to be violated when numerical calculations are performed in the triangular lattice In contrast the authors show analytically that such a result is a spurious consequence of the numerical computation and they are able to prove that a bound state exists below the two-magnon band for all wave vectors in the triangular ferromagnet.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.