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Experimental evidence of an electronic transition in CeP under pressure preceding the volume collapsing isostructural transition using Ce L3–edge x-ray absorption spectroscopy

Abstract

Cerium phosphide undergoes a unit-cell volume discontinuity without any structural changes under the application of high pressure at ~10 GPa. This phenomenon is attributed to a change in the electronic charge distribution of the cerium in CeP, but till date no direct experimental verification for this hypothesis was presented. Here, we report a Ce L3˗edge x˗ray absorption spectroscopy study under pressure, which provides a direct compelling evidence of an electronic transition associated with the above mentioned isostructural volume discontinuity. The present results should be relevant to the understanding of the phenomenon of pressure induced isostructural transitions involving unit-cell volume collapse.

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Publication details

The article was received on 08 May 2017, accepted on 12 Jun 2017 and first published on 12 Jun 2017


Article type: Communication
DOI: 10.1039/C7CP03022C
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
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    Experimental evidence of an electronic transition in CeP under pressure preceding the volume collapsing isostructural transition using Ce L3–edge x-ray absorption spectroscopy

    B. Joseph, R. Torchio, C. Benndorf, T. Shinmei, T. Irifune, R. Poettgen and A. Zerr, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP03022C

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