hide
Free keywords:
-
Abstract:
We have investigated structural properties of HoGa2 under hydrostatic
pressures up to 45 GPa using angle dispersive X-ray powder diffraction
in combination with the diamond anvil cell technique. At 4(1) GPa we
observed the onset of a first-order structural phase transition of the
AlB2-type low-pressure phase which was associated with a 10% shortening
of the c-axis and a 2.5% elongation of the a-axis. Both low-pressure and
high-pressure modifications are characterized by 6(3) nets of gallium
atoms. (C) 1998 Elsevier Science S.A.
