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Incommensurate-to-incommensurate phase transition in Eu metal at high pressures

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Original languageEnglish
Article number214105
Number of pages8
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume90
Issue number21
DOIs
Publication statusPublished - 8 Dec 2014

Abstract

High pressure x-ray powder-diffraction experiments were performed on europium metal up to similar to 70 GPa. Above 38 GPa, europium transforms from the incommensurately modulated Eu-IV phase to a second phase with an incommensurately modulated crystal structure, Eu-V. This is a previously unseen incommensurately modulated to incommensurately modulated transition in the elements at high pressure. High-pressure high-temperature experiments were also performed up to 449 K in order to make an initial estimate of the positions of the phase boundaries of the incommensurate phases.

    Research areas

  • EUROPIUM METAL, GPA, YTTERBIUM, VALENCE, DIAGRAM

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