A high-pressure van der Waals compound in solid nitrogen-helium mixtures

@article{Vos1992AHV,
  title={A high-pressure van der Waals compound in solid nitrogen-helium mixtures},
  author={Willem L. Vos and Larry W. Finger and Russell J. Hemley and J. Z. Hu and Ho-kwang Mao and Jan A. Schouten},
  journal={Nature},
  year={1992},
  volume={358},
  pages={46-48}
}
WEAKLY bound van der Waals molecules, consisting of atoms or molecules (such as rare gases, H2 and N2) interacting through van der Waals forces, can be formed in the gas phase1. The existence of similar weakly bound stoichiometric compounds in condensed phases has remained an open question as the components usually form separate pure phases or solid solutions2. Here we report on a detailed study of the helium–nitrogen system in a diamond-anvil cell using synchrotron X-ray diffraction, Raman… Expand
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