Avgin, IHuber, DL2019-10-272019-10-2719970163-1829https://doi.org/10.1103/PhysRevB.56.2320https://hdl.handle.net/11454/34900Results are presented for the low-temperature specific heat of a disordered Heisenberg chain with random +/-J interactions in the large-spin limit. The specific heat varies at T-2/3 with a coefficient that depends on the relative fractions of positive and negative bonds. The coefficient is calculated exactly for the equal-probability distribution. There is also a brief analysis of the destabilizing effects of an applied magnetic field.en10.1103/PhysRevB.56.2320info:eu-repo/semantics/closedAccessArticle56523202321WOS:A1997XQ61900011N/A