Antinodal kink in the band dispersion of electron-doped cuprate La2−x Ce x CuO4±δ oleh C. Y. Tang, Z. F. Lin, J. X. Zhang, X. C. Guo, Y. G. Zhong, J. Y. Guan, S. Y. Gao, Z. C. Rao, J. Zhao, Y. B. Huang, T. Qian, Z. Y. Weng, K. Jin, Y. J. Sun, H. Ding