Qin Meng, Li Yan-Biao, Bai Zhong, Wang Xiao. Effects of different Dzyaloshinskii-Moriya interaction and magnetic field on entanglement and fidelity intrinsic decoherence in a spin systemJ. Acta Physica Sinica, 2014, 63(11): 110302. DOI: 10.7498/aps.63.110302