Friday, 20 February 2015

Spin waves in Heisenberg AF

Spin-wave multiple excitations in nanoscale classical Heisenberg antiferromagnets.
Zhuofei Hou and D. P. Landau, G. M. Stocks, G. Brown

Phys. Rev. B 91, 064417 (2015)

The spectra for ST(r0,q,ω) obtained from isotropic, antiferromagnetic nanofilms with the same Lxy=20 and three different thicknesses, i.e., Lz=10, 20, and 30. The results were obtained in the PBCXY [100] directions, i.e., the directions parallel to the free surfaces, with r0⇒bulkcenter at T=0.4TN with SD parameters of nt=5000,ncutoff=4000, and dt=0.2/|J|. We give the spectra for nq=0,1,2,...,5. N is the total number of initial configurations.





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