A new evidence of first-order phase transition for hydrogen at 3000 K J. Yang, Ch. L. Tian, F. Sh. Liu, L. C. Cai, H. K. Yuan, M. M. Zhong and F. Xiao EPL, 109 3 (2015) 36003 Published online: 19 February 2015 DOI: 10.1209/0295-5075/109/36003