High pressure calculation of the melting curve: Na, K, Rb and Cs

✍ Scribed by J.L. Pelissier

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 538 KB
• Volume: 126
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/0378-4371(84)90213-9

✦ Synopsis

The melting of four alkali metals is investigated in the present paper, in the theoretical framework defined in a preliminary study on sodium. The calculations enable us to predict the existence of a very flat maximum on all four phase lines. The obtained results are in good agreement with experiment in the case of Na, K and Rb, and emphasize the importance of "d" effects and the dramatic influence of the electronic transition on the high pressure fusion curve of Cs. * Electronic thermal corrections are safely neglected in the present context, because of the low temperatures reached. 0378-4371/84/$03.00 O Elsevier Science Publishers B.V. * Relativistic effects are not explicitly taken into account in this work, even in the case of Cs. , It must be remembered however, that the Hugoniot curve, from the measurement of which "experimental" points of fig. 2 are deduced, is essentially in liquid phase.