Renormalized entanglement in Heisenberg-Ising spin-1/2 chain with Dzyaloshinskii-Moriya interaction Salman Khan and Kalimullah Khan Eur. Phys. J. Plus, 131 6 (2016) 208 Published online: 22 June 2016 DOI: 10.1140/epjp/i2016-16208-2