TY - Chin. Phys. Lett. A1 - Cheng Hu, Jian-Fa Zhao, Ying Ding, Jing Liu, Qiang Gao, Lin Zhao, Guo-Dong Liu, Li Yu, Chang-Qing Jin, Chuang-Tian Chen, Zu-Yan Xu, Xing-Jiang Zhou T1 - Evidence for Multiple Underlying Fermi Surface and Isotropic Energy Gap in the Cuprate Parent Compound Ca$_2$CuO$_2$Cl$_2$ Y1 - 2018-05-12 JF - Chinese Physics Letters JO - Chin. Phys. Lett. SP - 067403EP - 067403 VL - 35 IS - 6 UR - https://cpl.iphy.ac.cn N1 - 10.1088/0256-307X/35/6/067403 ER -