Structural, vibrational, and electronic properties of BaReH 9 under pressure

We present a study of the high-pressure behavior of BaReH , a novel hydrogen-rich compound, using optical, Raman, and infrared spectroscopy as well as synchrotron x-ray diffraction. The x-ray diffraction measurements demonstrate that BaReH retains its hexagonal structure on room temperature compress...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Condensed matter 2016-12, Vol.28 (50), p.505701
Main Authors: Vinitsky, Eugene A, Muramatsu, Takaki, Somayazulu, Maddury, Wanene, Wilson K, Liu, Zhenxian, Chandra, Dhanesh, Hemley, Russell J
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a study of the high-pressure behavior of BaReH , a novel hydrogen-rich compound, using optical, Raman, and infrared spectroscopy as well as synchrotron x-ray diffraction. The x-ray diffraction measurements demonstrate that BaReH retains its hexagonal structure on room temperature compression up to 40 GPa. Optical absorption shows the absence of a gap closure to 80 GPa. Raman and IR spectra reveal the pressure evolution of a newly observed phonon peak, and large peak broadening with increasing pressure. These data constrain the disorder present in the material following the P-T paths explored.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/28/50/505701