Dynamics of the fcc Heisenberg antiferromagnet with nearest-neighbor interactions. Fully occupied lattice
- 1 May 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 25 (9), 5761-5765
- https://doi.org/10.1103/physrevb.25.5761
Abstract
Numerical techniques are used to investigate the spin dynamics of the nearest-neighbor fcc Heisenberg antiferromagnet on the fully occupied lattice. The dynamic structure factor and the distribution of modes are calculated in the harmonic approximation. Despite the absence of three-dimensional long-range order the dynamics of the disordered antiferromagnet resembles the dynamics of a fcc antiferromagnet with type-III order.Keywords
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