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arXiv · 1105.4832

Long-lived magnons throughout the Brillouin zone of the strong-leg spin ladder (C$_7$H$_{10}$N)$_2$CuBr$_4$

D. Schmidiger·S. Muehlbauer·S. N. Gvasaliya·T. Yankova·A. Zheludev
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Abstract

Inelastic neutron scattering is used to measure spin excitations in fully deuterated single crystal samples of the strong-leg antiferromagnetic S=1/2 spin ladder compound (C$_7$H$_{10}$N)$_2$CuBr$_4$. Sharp resolution-limited magnons are observed across the entire one-dimensional Brillouin zone. The results validate the previously proposed {\it symmetric} spin ladder model and provide a reliable estimate of the relevant exchange interactions.

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D. Schmidiger, S. Muehlbauer, S. N. Gvasaliya, T. Yankova, A. Zheludev. 2011-05-24. Long-lived magnons throughout the Brillouin zone of the strong-leg spin ladder (C$_7$H$_{10}$N)$_2$CuBr$_4$. https://doi.org/10.1103/physrevb.84.144421

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