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Incommensurate-to-incommensurate phase transition in Eu metal at high pressures
DOI:
10.1103/PhysRevB.90.214105
Authors:
R. J.
Husband
(University of Edinburgh)
,
I.
Loa
(University of Edinburgh)
,
K. A.
Munro
(University of Edinburgh)
,
E. E.
Mcbride
(The University of Edinburgh)
,
S. R.
Evans
(ESRF)
,
H. P
Liermann
(DESY)
,
M. I.
Mcmahon
(University of Edinburgh)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Physical Review B
, VOL 90 (21)
, PAGES 10-15
State:
Published (Approved)
Published:
December 2014
Abstract: High pressure x-ray powder-diffraction experiments were performed on europium metal up to about 70GPa. 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.
Subject Areas:
Chemistry
Instruments:
I15-Extreme Conditions
Other Facilities: ESRF; DESY