Erratum to: J Low Temp Phys (2011) 165:249–260 DOI 10.1007/s10909-011-0398-1

In all instances, g and g c after the first paragraph in Sect. 4 as well as in the figure captions for all of the figures and the x-axis labels in Figs. 1, 3, and 4 should read 4πg or 4πg c respectively. This implies that while the original conclusions are correct, the factor of 4π means that the order-disorder transition is expected to appear for much more experimentally relevant parameters.

There was also a typographical error at the end of the first paragraph in Sect. 4 where it was stated that for 133Cs127I B=0.71 Hz. The units on this quantity should have been in GHz, not Hz as appeared in the original text.