Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature

Details Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature

2000-01-31

arxiv.org/abs/cond-mat/0001441v1

Phys. Rev. B 62, 3271 (2000)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 5 embedded figurs

Scientific paper

10.1103/PhysRevB.62.3271

Within the Dyson-Maleev boson formalism, we study the zero-temperature magnon dispersions in a family of one-dimensional quantum Heisenberg ferrimagnets composed of two different spins $(S_1,S_2)$ in the elementary cell. It is shown that the spin-wave theory can produce precise quantitative results for the low-energy excitations. The spin-stiffness constant $\rho_s$ and the optical magnon gap $\Delta$ of different $(S_1,S_2)$ ferrimagnetic systems are calculated, respectively, to second and third order in the quasiparticle interaction. The spin-wave results are compared with available numerical estimates.

Affiliated with

Also associated with

No associations

Rating

Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-204596