Publication Cover
High Pressure Research
An International Journal
Volume 6, 1991 - Issue 4
15
Views
1
CrossRef citations to date
0
Altmetric
Original Articles

Anomalies in the velocity of longitudinal ultrasonic waves in cesium under the pressure up to 5 GPa

, &
Pages 213-217 | Received 13 Aug 1990, Published online: 19 Aug 2006
 

Abstract

The velocity of longitudinal ultrasonic waves, ν1,(P), in polycrystalline cesium was measured at 293 ±1K in the pressure interval 0–5 GPa. v 1(P) alterations at BCC-FCC phase transition at 2.3 GPa and at the electronic-structure transformation at 4.3 GPa were obtained. Decrease of v 1(P) to 4.3 GPa after a maximum at ∼3.8 GPa were found, that gave evidence to the appearance of a corresponding soft mode in the FCC-Cs phonon spectrum. The peculiarities of dependence v 1(P) correlate with s-conduction electrons promotion to the empty d-band in accordance with the theoretically predicted continuous electronic s-d transformation in Cs.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.