A slave-fermion gauge-theory approach of the t-J model: Doping-induced complex magnetic structure and Z${}_2$ spin-gapped anomalous metal in an antiferromagnetic doped Mott insulator

Chenglong Jia, Ki-Seok Kim

We reinvestigate a doped antiferromagnetic Mott insulator based on the slave-fermion approach of the t-J model, where antiferromagnetic spin fluctuations and doped holes are descri…