TY - JOUR
T1 - Structural, vibrational, and electronic properties of BaReH9 under pressure
AU - Vinitsky, Eugene
AU - Muramatsu, Takaki
AU - Somayazulu, Maddury
AU - Wanene, Wilson
AU - Liu, Zhenxian
AU - Chandra, Dhanesh
AU - Hemley, Russell
PY - 2016/12/21
Y1 - 2016/12/21
N2 - We present a study of the high-pressure behavior of BaReH9, 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 BaReH9 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.
AB - We present a study of the high-pressure behavior of BaReH9, 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 BaReH9 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.
U2 - 10.1088/0953-8984/28/50/505701
DO - 10.1088/0953-8984/28/50/505701
M3 - Article (Academic Journal)
C2 - 27792668
VL - 28
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 50
M1 - 505701
ER -