Abstract
Recent studies of the distribution and localization of linear magnon modes in Heisenberg spin chains with random ±J nearest-neighbor interactions are summarized. A combination of numerical and analytical techniques are utilized to obtain the limiting behavior at low energies. The magnon contribution to the low temperature specific heat is calculated and compared with the specific heat of a spin-1/2 chain with similar interactions that was calculated by Westerberg et al. using real space renormalization group techniques.
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© 1998 Springer-Verlag Berlin Heidelberg
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Avgin, I., Boukahil, A., Huber, D.L. (1998). Magnons in Heisenberg Chains with Random ±J Nearest-Neighbor Interactions. In: Landau, D.P., Mon, K.K., Schüttler, HB. (eds) Computer Simulation Studies in Condensed-Matter Physics X. Springer Proceedings in Physics, vol 83. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46851-3_13
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DOI: https://doi.org/10.1007/978-3-642-46851-3_13
Publisher Name: Springer, Berlin, Heidelberg
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