Zeling Chen, Shu Yang, Zetao Xie, Jinbing Hu, Xudong Zhang, Yipu Xia, Yonggen Shen, Huirong Su, Maohai Xie, Thomas Christensen, Yi Yang. "Broadband measurement of Feibelman’s quantum surface response functions." Proceedings of the National Academy of Sciences (2025). https://doi.org/10.1073/pnas.2501121122