Key points are not available for this paper at this time.
It is pointed out that the classical two-dimensional harmonic "solid" exhibits an infinite generalized susceptibility at low temperature, although there is no long-range order and no phase transition.Received 15 May 1967DOI:https://doi.org/10.1103/PhysRevLett.19.20©1967 American Physical Society
B. Jancovici (Mon,) studied this question.