Phys. Rev. B 55, R11937 - R11940 (1997)Identification of an intrinsic localized spin-wave resonance in antiferromagnetic chains with single-ion easy-plane anisotropy |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1974: |
R. Lai and A. J. Sievers
Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, New York 14853-2501
Received 11 December 1996
We find that a stationary intrinsic localized spin-wave resonance can exist and is long lived within the linear spin-wave spectrum for a perfect one-dimensional antiferromagnetic chain of classical spins with single-ion easy-plane anisotropy. Numerical simulation studies demonstrate that the excitation is stable with regard to a noise perturbation. The resonance is infrared active and its frequency decreases with increasing maximum spin deviation.
©1997 The American Physical Society
URL: http://link.aps.org/abstract/PRB/v55/pR11937
DOI: 10.1103/PhysRevB.55.R11937
PACS: 75.10.Hk, 75.50.Ee, 75.30.Ds, 46.10.+z
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