本周出版的Proceedings of the National Academy of Sciences上发表的一篇论文中说，碳化钼的α相在4开尔文下是超导的。当碳化钼亚稳相与硫化钼分层时，超导电性在6开尔文处出现，提高了50%。尽管这结果本身并不显著——其他材料已被证明在高达150开尔文的温度下具有超导性——但这仍然是一个出乎意料的现象，预示着在其他超导材料中提高高温超导电性的新方法。

Room temperature superconductivity creeping toward possibility

https://www.sciencedaily.com/releases/2020/07/200729114859.htm

Fu Zhang, Wenkai Zheng, Yanfu Lu, Lavish Pabbi, Kazunori Fujisawa, Ana Laura Elías, Anna R. Binion, Tomotaroh Granzier-Nakajima, Tianyi Zhang, Yu Lei, Zhong Lin, Eric W. Hudson, Susan B. Sinnott, Luis Balicas, Mauricio Terrones. Superconductivity enhancement in phase-engineered molybdenum carbide/disulfide vertical heterostructures. Proceedings of the National Academy of Sciences, 2020; 202003422 DOI: 10.1073/pnas.2003422117