Thermodynamic properties of spin-1/2 transverse XY chain with   Dzyaloshinskii-Moriya interaction: Exact solution for correlated Lorentzian   disorder
  We extend the consideration of the spin-1/2 transverse XY chain with correlated Lorentzian disorder (Phys. Rev. B {\bf 55,} 14298 (1997)) for the case of additional Dzyaloshinskii-Moriya interspin interaction. It is shown how the averaged density of states can be calculated exactly. Results are presented for the density of states and the transverse magnetization. 
Oleg Derzhko and Johannes Richter