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APS » Journals » Phys. Rev. B » Volume 55 » Issue 18
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Phys. Rev. B 55, R11937–R11940 (1997)

Identification of an intrinsic localized spin-wave resonance in antiferromagnetic chains with single-ion easy-plane anisotropy

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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; published in the issue dated 1 May 1997

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/doi/10.1103/PhysRevB.55.R11937
DOI:
10.1103/PhysRevB.55.R11937
PACS:
75.10.Hk, 75.50.Ee, 75.30.Ds, 46.10.+z
 
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