High-pressure behaviors of dimorphic Yb5Sb3 up to 120 GPa

Dimorphic Yb5Sb3 (α- and β-Yb5Sb3) are found to be Mott-insulating electrides, theoretical calculations indicate that both have a potential to become unconventional superconductors. However, their electrical transport properties and structural evolutions under high pressure have not been fully understood. We propose to perform the high-pressure powder X-ray diffraction (PXRD) studies of dimorphic Yb5Sb3 up to 120 GPa at ID15B. We hope to understand the exact high-pressure structures and the compression behaviours, and have an in-depth understanding of their physical properties under high pressure.