Exotic high pressure behavior of light alkali metals, lithium and sodium
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- Rousseau, B., Xie, Y., Ma, Y. et al. Eur. Phys. J. B (2011) 81: 1. doi:10.1140/epjb/e2011-10972-9
At ambient conditions, lithium and sodium behave as free-electron metals and adopt highly symmetric close-packed structures. Under high pressure, however, these simple metals undergo a series of complex phase transitions to structures of lower symmetry, along with significant changes of their physical properties. In this review we provide a comprehensive description of these light alkali metals, with a focus on the structural and electronic properties under pressure.