Title: Microscopic observation of the s-]d transition in metallic cesium under high-pressure
Authors: Abdelmeguid, Mm
Pattyn, Hugo
Bukshpan, S
Issue Date: Jan-1994
Publisher: American physical soc
Series Title: Physical Review Letters vol:72 issue:4 pages:502-505
Abstract: Using the Cs-133 high-pressure Mossbauer effect technique, we were able for the first time to investigate on a microscopic level the pressure effects on the electronic charge densities and lattice dynamics in metallic cesium. A quantitative analysis of the experimental results reveals direct evidence for a gradual pressure-induced 6s --> 5d electronic transition in metallic cesium in agreement with band structure calculations. From the pressure-induced change of the Debye-Waller factor at 4.2 K, we obtain a new value of the Debye temperature theta(D) for metallic Cs of 64(2) K at p = 6 GPa (V/V0 = 0.33).
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Nuclear and Radiation Physics Section

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