Phys. Rev. Lett. 81, 1937 - 1940 (1998)(C2H5NH3)2CuCl4: A Physical System for the Experimental Investigation of Intrinsic Localized Modes |
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, Cornell University, Ithaca, New York 14853-2501
Received 8 January 1998
The weak dissipation of spin waves in magnetic materials makes antiferromagnets realistic candidates for the experimental observation of intrinsic localized modes. Our molecular dynamics simulations with different antiferromagnets reveal that the lowest lying uniform spin wave mode of the antiferromagnet (C2H5NH3)2CuCl4 is unstable and that it can be driven sufficiently hard with a 1 Oe cw microwave field to generate intrinsic localized spin wave modes.
©1998 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v81/p1937
DOI: 10.1103/PhysRevLett.81.1937
PACS: 75.10.Hk, 46.10.+z, 75.30.Ds, 75.50.Ee
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