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APS » Journals » Phys. Rev. B » Volume 61 » Issue 13
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Phys. Rev. B 61, 8843–8850 (2000)

Modulated magnetic structure and spin waves in hexagonal CsCuCl3-type antiferromagnets

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A. L. Sukstanskii*
Donetsk Physicotechnical Institute, Ukrainian Academy of Sciences, 340114 Donetsk, Ukraine

E. P. Stefanovskii
Department of Physics, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheeva 84105, Israel

S. A. Reshetnyak and V. N. Varyukhin
Donetsk Physicotechnical Institute, Ukrainian Academy of Sciences, 340114 Donetsk, Ukraine

Received 8 March 1999; published in the issue dated 1 April 2000

A theory is developed for triangular helicoidal antiferromagnetic structures due to the relativistic-exchange inhomogeneous Dzyaloshinskii-Moriya interaction in hexagonal crystals. The magnetic structure observed in the CsCuCl3 system is explained, and the spin-wave spectrum and relaxation of spin waves are analyzed. The theoretical results are in agreement with experimental antiferromagnetic-resonance data.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.61.8843
DOI:
10.1103/PhysRevB.61.8843
PACS:
75.10.-b, 75.30.Ds

*Electronic address: sukstan@purr.dipt.donetsk.ua

 
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