Ideal Weyl points and helicoid surface states in artificial photonic crystal structures - Yang, B., Guo, Q., Tremain, B., Liu, R., Barr, L. E., Yan, Q., Gao, W., Liu, H., Xiang, Y., Chen, J., Fang, C., Hibbins, A., Lu, L., Zhang, S. (American Association for the Advancement of Science (AAAS), 2018)
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