Superconductivity at 4.6 K in the Cr-based nitride La3Cr10–x N11 Y. J. Li, W. Wu, K. Liu, Z.-H. Yu, D. S. Wu, Y. T. Shao, S. H. Na, G. Li, P. Zheng, T. Xiang and J. L. Luo EPL, 128 6 (2019) 67002 Published online: 04 February 2020 DOI: 10.1209/0295-5075/128/67002