Character of frustration on magnetic correlation in doped Hubbard model Peng Wang, Xinran Ma, Jingyao Wang, Yamei Zeng, Ying Liang and Tianxing Ma Eur. Phys. J. B, 89 2 (2016) 38 Published online: 10 February 2016 DOI: 10.1140/epjb/e2016-60785-3